Hydrofluoric acid death

Hydrofluoric acid death. continue for days and result in limb loss or death. 21 when a valve gasket failed and potent hydrofluoric acid leaked out, according to an Homicide attacks in which hydrofluoric acid (HF) is used are very rare, and few studies have reported the pathological changes. Although most cases of severe inhalational exposures to hydrofluoric acid are rapidly lethal, here we present a case of a patient who Information on hydrofluoric acid, a potential agent for chemical terrorism. Severe eye Hydrofluoric acid (HF) causes a unique chemical burn. Prompt decontamination by removal from the source and copious irrigation of eyes and skin are essential to reduce morbidity and mortality. Death of the victim while in police custody was one of the more unique aspects of the case. It is natural to expect hydrofluoric acid to be corrosive, but to make things worse, HF is also a strong contact poison. ORG®, LLC Developed by Dana Bartlett, RN, MSN, CPS INTRODUCTION Few nurses are familiar with the pathophysiology and treatment of Product Name Hydrofluoric acid, 48 - 51% Cat No. Hydrogen fluoride can be released when other fluoride-containing compounds such as ammonium fluoride are combined with water. 5% of the body surface area from concentrated hydrofluoric acid can produce Dermal hydrofluoric acid burns resulting in death. It is evident that rigorous control measures including proper personal protective equipm Recognize the effects of hydrofluoric acid. ORG®, S. Share Sort by: Best. Reply New York City sanitation worker Michael Hanly dies after he inhales hydrofluoric acid fumes from discarded container that bursts under compacting blades of garbage truck in Brooklyn; his partner The latest of those apparent breakdowns led to the death of Jason DeRousselle, 51, of Prairieville, on Oct. PURPOSE Hydrofluoric acid (HF) is an extremely dangerous chemical, and can cause death from a skin exposure of less than 3% of body area. An algorithmic approach to the treatment of hydrofluoric acid burns. Pure hydrogen fluoride is a clear, Product Name Hydrofluoric acid, 48 - 51% Cat No. HF is of particular concern because whilst it can cause severe burns like many concentrated acids, its fluoride HF is a weak acid (pKa = 3. Exposure to dilute solutions (less than 20% concentration) may cause few or no symptoms at first, but may cause severe pain later. Concentrated HF (70%) will fume on contact with air. It is the principal industrial source of fluorine, often in the form of hydrofluoric acid, and is an important feedstock in the preparation of many important compounds including pharmaceuticals and He named it fluoric acid (now known as hydrofluoric acid). It is produced from the reaction between calcium fluoride and sulphuric acid. Given that current knowledge of HF burns is derived from small case series, case reports, animal studies and anecdotal evidence, this narrative review discusses the current understanding of the effects associated with severe hydrofluoric acid Hydrofluoric Acid Burns WWW. Ignoring White’s instructions, Pinkman put Koyama’s body in A case of death caused by an acid attack is presented. UK Hydrofluoric acid (HF) is a highly corrosive and toxic liquid. 1997. 1. 5 grams of hydrofluoric acid (concentration unknown) within 6. . Although hydrofluoric acid (HF) and hydrochloric acid (HCl) have similar sounding names, the amounts of dilute hydrofluoric acid has resulted in death. 0 Date Reviewed: June 8th, 2020 – Skin exposure to concentrated HF (50%-100) immediately results in serious and painful destruction of tissue, Ingestion of hydrofluoric acid can cause burning of the mouth and throat, and stomach pain. Acidic fluoride solutions are highly corrosive and can cause the glass membrane in most pH sensors to dissolve. It’s important to handle this acid with utmost care. If Hydrofluoric acid (HF) is a strongly corrosive, highly toxic, and highly dangerous mineral acid. Upon reaction with Although a weak acid, i. Product identifier Product name: Instrument Quality Hydrofluoric Acid Hydrofluoric acid can prove to be immensely harmful due to its corrosive and toxic properties, and if it touches a person’s skin, it can result in some serious burns or even result in death. Therefore, first aid procedures must be Hydrofluoric acid is hazardous and corrosive and, if accidently released, can form a vapor cloud. HF As nasty as HF might sound, a world without hydrofluoric acid would be pretty bleak. 1111/j. It should be handled with extreme care, beyond what is generally required to handle other mineral acids. Did you know? Exposure to ammonium bifluoride, a component of automotive cleaners, metal cleaners and used in the porcelain and glass industries, can result in hydrofluoric acid (HF) toxicity. It is a solution of hydrogen fluoride in water; pure hydrogen fluoride may also be called hydrofluoric acid, because it displays self-ionization and is strongly acidic even without water. HF can penetrate the skin exceptionally easily and decalcifies bones leading to tissue necrosis, which may result in amputation and death. This article discusses poisoning from swallowing, breathing in, or touching hydrofluoric acid. She reached the casualty department of a hospital AMA Request: someone who has had an incident with / has experienced HF (hydroflouric acid) burns and survived. This is because the majority of these injuries involve dilute solutions of HF acid and because the tissue damage and nerve irritation is happening below the epidermis. Be sure to give your exact to 24 hours. All statements and information are believed to be accurate and reliable, they are presented without guarantee or warranty of any kind, express or implied. is Hydrofluoric Acid, and contact your supervisor and Environmental Safety and Health (ESH) Representative immediately. It is commonly used in the fluorine industry, to remove metal rust, for semiconductor etching, and in household products such as cleaning agents and stain removers for clothing [1], [2]. Hydrofluoric Acid 70%, Technical . Unlike other acids, dilute HF can react with tissue and bone without significant initial pain. HF’s unique properties make it significantly more hazardous than many of the other acids used on campus. We present a 21-year-old man with 15% full thickness burns, severe metabolic acidosis Hydrofluoric acid etches glass, due to the strong bond formed between fluoride anions and the silicon molecules in glass. No. The autopsy revealed severe chemical burns of her Hydrofluoric acid. Hydrofluoric acid is also used as a brick and stone cleaner, rust remover, and wheel cleaner. : AC423800000; AC423800025; AC423800250; AC423805000 Synonyms Hydrofluoric acid solution; Fluohydric acid; Fluoric acid Recommended Use Laboratory chemicals. Affiliation 1 Fremantle Hospital, Australia. 1 It is found in glass and microchip etching materials and many different cleaning agents for glasses and metals, including rust removers, toilet bowl cleaners, air conditioner cleaners, and Oral: Death has occurred after ingestion of 1. Hydrofluoric acid is a weak acid that can Hydrofluoric acid (HF) may cause serious skin burns with unique properties because of the penetration of the dermis by the fluoride ion, which then binds with calcium in tissues and blood. INHALATION § The lowest lethal concentrations for hydrogen fluoride range from 50-250 ppm for 5- Hydrofluoric acid (CAS#7664-39-3) is a mineral acid that is miscible in water. Once, it was a mere chemical curiosity, tucked away in the annals of scientific journals. It exists in two forms: in a purified form (>99%), called anhydrous hydrofluoric acid, and in a dilute form, called aqueous hydrofluoric acid [4]. 5% body surface area (BSA) burn involving concentrated acid. Indeed, most of our knowledge about HF exposures comes from occupational exposures. The exact rate of corrosion depends on the concentration of fluoride as well as the temperature and pH of the solution. It is usually in liquid form. A case of death caused by an acid attack is presented. , less than 40% HF) do not produce significant vapor concentrations. 2. The acid readily penetrates the outer layers of the skin and interferes with nerve function – burns might not be immediately visible and Between 1984 and 1994 Hydrofluoric Acid (HF) accounted for at least nine deaths in the United States. Sulfuric acid or hydrochloric acid as strong acids would have been much more successful at dissolving the flesh, but, again, not nearly as quickly as depicted. Available published Hydrofluoric acid burns present with a unique concern for systemic fluoride toxicity including cardiovascular, pulmonary, renal and neuromuscular symptoms, electrolyte imbalance and enzyme inhibition which can lead to cardiac arrhythmias and death. 2 Relevante identifizierte Verwendungen des Stoffs oder Gemischs und Verwendungen, von denen abgeraten wird Relevante identifizierte Verwendungen Allgemeine Verwendung Verwendungen, von denen Hydrofluoric acid is very dangerous to handle, because the human skin becomes easily saturated with the acid. Hydrofluoric acid is highly corrosive compared to many other acids and can severely burn the skin, eyes and internal organs. The Hydrofluoric Acid (HF) is a highly corrosive inorganic acid and so handle with extreme caution. The severity of the burn is related to a number of factors, including the pH of the agent, the concentration of the agent, the length of the contact time, the volume of the offending agent, and the physical form of the agent. Hydrogen fluoride is used to make refrigerants, herbicides, pharmaceuticals, high-octane gasoline, aluminum, hydrofluoric acid (Krenzelok, 1992). It is the recipient’s A fatal accident involving concentrated hydrofluoric acid in a palynological laboratory is described. HF is similar to other acids in that the initial extent of a burn depends on the concentration, the temperature, and the duration of contact with the acid. Adjust contrast. HF is similar to other acids in that the initial extent of a burn A case of death caused by an acid attack is presented. Considering the fluoride concentration in Hydrofluoric acid is a chemical that is a very strong acid. All Hydrofluoric acid is commonly used in many industrial processes, including oil refining, silicon and glass etching, refrigerant production, and aluminum metal production. It will also react with glazes, enamels, pottery, concrete, rubber, leather, many metals (especially cast iron) and many organic compounds. Significant local and systemic toxicity may occur from hydrofluoric acid by all routes of exposure. RTECS # MW7875000 CAS # 7664-39-3 See: NMAM or Effects on embryo or fetus: Fetal death: GTPZAB 19(3),57,1975: Acute Toxicity Data and References. Systemic toxicity usually occurs after ingestion or inhalation. , 50% or stronger solutions) to as little as 2. Significantly, it has a vapor pressure of 110 mm Hg, indicating it will vaporize The clinical presentation and severity of hydrofluoric acid burns vary considerably, making management particularly challenging. Kirkpatrick JR, Burd DAR. Best. Hydrogen gas, which may pose an explosion hazard, is generated upon reaction with metals. Hydrofluoric acid (HF) is a corrosive and toxic acid that can cause serious burns, blindness and even death. New. The eyes are especially sensitive. Search. The main If HF is not rapidly neutralized and the fluoride ion bound, tissue destruction may continue for days and result in limb loss or death. In addition to local toxicity, HF can trigger Hydrofluoric acid (HF) burns, which were not evident until a day after exposure. Hypocalcemia is thought to be the cause of sudden death from HF Hydrofluoric acid is a weak acid compared to many others, but its health risks are particularly severe due to its ability to penetrate tissue. Drinking hydrofluoric acid can cause severe burns to Hydrofluoric acid AR, ≥40%; CAS Number: 7664-39-3; Synonyms: HF at Sigma-Aldrich multicentre study comparing the efficacy and safety of oral rivaroxaban with placebo for reducing the risk of death, myocardial infarction or stroke in subjects with heart failure and significant coronary artery disease following an exacerbation of heart failure: the COMMANDER HF trial. 01 Recommended Use: Restrictions on Use: Commercial/industrial use Product Name: As an example, hydrofluoric acid burns cause intense pain and tissue destruction, as well as electrolyte abnormalities that may precipitate cardiac arrest. Español | Other Languages. The victim, a young woman, was attacked by a person who threw acid onto her face. This is the sixth case of poisoning of this type reported in Dade County. Direct contact with HF can cause major damage to your skin tissue, as HF is a corrosive substance that burns. It is highly corrosive, very reactive, incompatible with many materials, and exposure to HF can Background: Case reports have identified hydrofluoric acid (HF) as causing fatal work injury, and HF has both local and systemic toxicity. The OSHA permissible exposure limit (PEL) is 3. Information provided herein does not relieve the user When HF acid is dissolved in water, it may be called hydrofluoric acid. Many Hydrofluoric Acid (HF) is an inorganic acid with special chemical properties that make it particularly hazardous to laboratory researchers. Hydrofluoric acid is a chemical that is a very strong acid. Can initiate polymerization in certain alkenes. Burns caused by weak hydrofluoric acid may go unnoticed for several hours. ) In the petrochemical industry, hydrofluoric acid is used as an alkylation catalyst in the production of fuel additives and to increase extraction yields by injecting solutions by dissolving rock to improve conduit flow and access deeper deposits. (Photo contributor: Karen Rogers, MD. Much of the current treatment knowledge of HF burns is derived from case reports, small case series, animal studies and anecdotal evidence. Note the restricted space of the fume cupboard, the digestion cup and 2-1. To that end, one worker Jason DeRousselle, 51, of Prairieville, died Oct. Hazard(s) identification Reports indicate that death due to hydrofluoric acid exposure is usually the result of inhalation of vapor causing pulmonary edema and fluoride poisoning. Centers for Disease Control and Prevention. Skip directly to site content Skip directly to search. Even though skin absorption of small areas of only 25 square inches (160 cm 2) may be relatively painless, yet the exposure may be ultimately fatal. See also PH Value of Ammonium Carbonate in Water The corrosive nature of HF is a result of its ability to penetrate the skin and attack the underlying tissues, including bones. Authors A D Gubbay 1 , R I Fitzpatrick. This can cause cellular and systemic effects [13]. There is also the potential for death, particularly through ingestion. Use utmost caution! A suggested procedure to follow is to wash or rinse your hands following the performance of an etch or when moisture that might even remotely contain HF is contacted in the SAFETY DATA SHEET (SDS) Hydrofluoric Acid, 35-51% w/w according to Hazardous Products Regulations (SOR/2015-17) Revision date: 11/16/2022 (mm/dd/yyyy) Revision number: 5. No dose levels of fluoride were reported. HYDROFLUORIC ACID SOP potentially resulting in limb loss or death. Compendium of chemical hazards: Hydrogen and ultimately death. Properties Names: gaseous state: hydrogen fluoride or anhydrous hydrofluoric acid aqueous solution: hydrofluoric acid, fluorhydric acid, fluoric acid Chemical Formula: HF Accidents involving Hydrofluoric acid (HF) can cause serious injury or even death. She reached the casualty department of a hospital where she died, a few hours later, from acute respiratory insufficiency due to the inhalation of acid vapors. Inhalation of gas or mists, leading to asphyxia from pulmonary oedema (fluid in the lungs) and convulsions. Fingers and hands are the Hydrofluoric Acid is a highly corrosive substance used in industrial applications and computer processing. A fatality r Hydrofluoric acid (HF) is commonly used for conditioning the glass ceramics either prior to cementation or for intraoral repair in prosthetic and restorative dentistry. Deaths have been reported from concentrated acid burns (involving ≥ 50% HF solutions) to as little as 2. The mainstays of treatment are early water Revised on 02/25/2022 Page 1 of 7 Safety Data Sheet . Because of the ability of hydrofluoric acid to penetrate tissue, Hydrofluoric acid solutions as low as 2% may cause burns if they remain in contact with the skin for long enough [4]. Dermal hydrofluoric acid burns resulting in death Aust N Z J Surg. Hydrofluoric acid (HF) is a colourless solution of hydrogen fluoride dissolved in water. Ingestion of small amounts of HF can lead to rapid systemic poisoning and death. Saving Lives, Protecting People . Death can occur from severe electrolytic imbalance (hypocalcemia and hypomagnesemia) that leads to cardiac arrhythmia (fibrillation), which, in turn, Hydrofluoric acid is similar to other acids in that the initial extent of a burn depends on the concentration, the temperature and the duration of contact with the acid. Of these nine fatalities three occurred within 30 minutes of exposure; five occurred within six hours of exposure; and the Hydrofluoric Acid Exposure - Etiology, pathophysiology, symptoms, signs, diagnosis & prognosis from the MSD Manuals - Medical Professional Version. He told Pinkman to buy a large plastic bath to do the deed. In the heart of a bustling metropolis lies a laboratory veiled in secrecy. HF will also react with glazes, enamels, pottery, concrete, rubber, leather, many metals (especially cast iron) and many organic compounds. While the central part of the room was the entrance area, the left and right part of the room • Death has occurred after ingestion of 1. Severe multiple organ failure due to the direct or indirect effects of local or systemic fluoride toxicity has also been reported [4]. , it is not strongly disassociated, is used to etch glass. SCOPE This safe work procedure applies to working directly with HF as a reagent as well as procedures where HF is a by-product. HF will react violently with any glass that has a high surface area (such as glass wool). Systemic hypoclcemia should Hydrogen fluoride gas, even at low levels, can irritate the eyes and respiratory tract (mouth, throat, lungs, nose). Deep within its labyrinthine corridors, a sinister substance lurks, whispered about in hushed tones among the scientists— hydrofluoric acid, a silent predator with a deadly touch. 6. It is also used by geologists to dissolve sedimentary rock. As an anhydrous material, it is a colorless gas or fuming liquid. Owing to its low dissociation constant, HF penetrates tissue more rapidly than typical mineral acids as it is a neutral lipid-soluble molecule. Hydrofluoric acid (HF) is a dangerous inorganic acid that is used widely in the chemical industries, electronics manufacturing, glass etching, smelting, cleaning, and other industrial fields [1], [2], [3]. 2 Relevant identified uses of the substance or mixture and uses advised against Relevant identified uses: Laboratory chemical Laboratory and analytical use Uses advised against: Do Hydrofluoric acid penetrates rapidly and deeply below fat layers binding and depleting tissue calcium. Therefore, first aid procedures must be followed if any contact is Hydrofluoric acid, HF, is a fuming industrial acid of low strength. Controversial. Death may occur as a result of the consequences associated with fluoride ion poisoning such as hyperkalaemia, hypocalcaemia, and hypomagnesaemia. Working with hydrofluoric acid Hydrofluoric acid is very corrosive, highly irritating and poisonous. Despite being classified as a weak acid, it is highly corrosive and can penetrate tissues, causing severe chemical burns. Ammonium bifluoride forms HF upon contact with water or bodily fluids. Concentrated hydrofluoric acid is used in the fabrication of electronic components, to etch glass and in the manufacture of semiconductors. Route/Organism Dose Effect Reference; In Vitro/Human, skin : Inhibitor Concentration Low: 5 pph/3M: In Vitro Toxicity Studies: Other assays: TOLED5 248,25,2016: HF can protonate strong acids like hydrochloric, sulfuric, or nitric acids when using concentrated hydrofluoric acid solutions. Although a great deal of literature exists for cutaneous exposures, inhalational exposures have not been as well studied. Aside Accidents involving Hydrofluoric acid (HF) can cause serious injury or even death. ) PATIENT WITH EYE EXPOSURE — Hydrofluoric acid or HF is an extremely corrosive acid. Hydrofluoric acid is a caustic chemical that is highly corrosive, which means it immediately causes severe damage to tissues, such as burning or ulcers, on contact. The present study offers a review of chemical properties of HF used, highlight the possible hazardous effects of this agent, and to recommend the treatment approach for potential risks. In lower concentrations, Hydrofluoric Acid Incident management This document provides information needed for response to a chemical incident, such as physicochemical properties, health effects and decontamination advice. Teflon), and most other synthetic materials that contain fluorine. May react with common metals (iron, steel) to generate flammable hydrogen gas if diluted below 65%. 5% Body Surface Area (BSA), an area roughly the size of your hand is sufficient to cause death. 1997 May;67(5):304-6. Special training, preparation, personal protective equipment, and handling precautions are needed when handling HF. PRODUCT AND COMPANY IDENTIFICATION . 2 Body surface area exposed It is clear that one of the main factors that contributed to the systemic effects in this case was the dermal exposure of 9% body surface area to concentrated hydrofluoric acid. Skin contact Although a weak acid, i. ISBN 9780729542241 Hydrofluoric acid is similar to other acids in that the initial extent of a burn depends on the concentration, the temperature and the duration of contact with the acid. Death has been reported from as little as 2. Uses Some uses and sources of hydrofluoric acid (also known as HF) include: Aluminium cleaner and brightener Oil refineries (alkylation process) Making fluorine Deaths have been reported from concentrated acid burns involving as little as 2. Ingredient C. Dilute hydrofluoric acid solutions are used in some biological Guidelines for the Safe Use of Hydrofluoric Acid A. Burns 1995; 21:483-493. Hydrogen Fluoride (HF) is a commonly used substance on campus, but a very dangerous one. Top. In the past five years, there have been a number of accidental releases of this acid from alkylation units at major petroleum refineries in the United States. 0 ppm. x. 36). Reacts with cyanide salts and compounds to release Hydrofluoric acid (HFA) is a corrosive chemical that can cause significant dermatologic injury and has the potential for systemic involvement and death. Hydrofluoric acid burns present with a unique concern for systemic fluoride toxicity including cardiovascular, pulmonary, renal and neuromuscular symptoms, electrolyte imbalance and enzyme inhibition which can lead to cardiac arrhythmias and death. Hazard(s) identification About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Seastar Chemicals Inc MSDS – HYDROFLUORIC ACID Page 1 of 7 Material Safety Data Sheet HYDROFLUORIC ACID Print Date: September 2011 SECTION 1 – Chemical Product and Company Identification MSDS Name: HYDROFLUORIC ACID MSDS Preparation Date: 09-2011, Supersedes 07-2008, 02-2007, 02-2004, 02-2001 & 02-98 Synonyms: Fluohydric acid, fluoric 2% or lower may cause burns. Pulmonary oedema was noted at autopsy but it was unclear whether this was due to Working Safely with Hydrofluoric Acid 1. The NIOSH ceiling limit (15 minutes) is 6. Both Unless you can rapidly neutralize the HF and bind the fluoride ions, tissue destruction may continue for days and result in limb loss or death. A rust remover leak Even small amounts of HF can be fatal. 5% Body Surface Area Information on hydrogen fluoride and hydrofluoric acid, for use in responding to chemical incidents. In recent years, HF has become one of the most common substances causing chemical b Hydrofluoric acid (HF), a solution of hydrogen fluoride gas in water, is one of the most corrosive and dangerous chemicals encountered in the laboratory. Fluoride binds to tissue calcium and magnesium ions, causing pain, hypocalcemia, and Hydrofluoric acid is a solution of hydrogen fluoride in water. 2. Hydrofluoric acid is a highly corrosive acid widely used in various industries. HFA can absorb through the skin and damage internal body tissues such as organs and bone. When in contact with skin it causes local and systemic reactions due to the generation of fluoride ions. Guidelines for the Safe Use of Hydrofluoric Acid Page 2 of 5 EHS-PUBL-013 v. 10; H747. SIGNS AND SYMPTOMS OF HYDROFLUORIC ACID BURNS Most HF acid burns are not dramatic in appearance. Hydrofluoric acid burns can be severe and extremely painful, causing extensive damage or even death. Agency Limit type Additional Comments Hydrofluoric Acid 7664-39-3 ACGIH TWA(as F):0. Symptoms of HF exposure. Even small amounts of HF can be fatal. Based on these results, we diagnosed the cause of death as acute hydrofluoric acid poisoning. The fatal period varies from a few minutes to 2 h. Burns with over 1% TBSA caused by anhydrous HF can lead to deep tissue damage, hypocalcemia, poisoning, and even death. Breathing in hydrogen fluoride at high levels can cause death from an irregular heartbeat or from fluid buildup in the lungs. Gupta, in Fundamentals of Toxicology, 2016 23. No employee shall be exposed to HF above the permissible limit for the specified period of time. UK Cookies on GOV. equipment during the handling of concentrated hydrofluoric acid could have prevented this death. It is the recipient’s These patients are at highest risk for systemic toxicity/death; Pain immediately (even if wound appears minor) implies severe injury; Burn itself may appear relatively minor ; Toxicity caused by binding of calcium and magnesium leading to electrolyte derangement and myocardial dysfunction; Clinical Features. With more severe inhalational exposure, patients may develop hemorrhagic alveolitis HF is an extremely dangerous material and all forms, including vapors and solutions, can cause severe, slow-healing, burns to tissues. Open comment sort options . 5% of body surface area. Calcium gluconate therapy Hydrofluoric acid is a colorless, fuming liquid or gas that is used for glass etching, metal cleaning, and rust removal. Please take our short survey to help us make improvements. Hydrofluoric acid burns: a review. Fatalities have been reported from a skin exposure to as Hydrofluoric acid (HFA), the inorganic acid of elemental fluorine, is a colourless gas or fuming liquid with a strong, irritating odour. Product Name: Hydrofluoric Acid, 70% Technical Synonyms/Generic Names: Hydrogen fluoride, Fluoric acid, Fluorhydric acid, Fluorine hydride Product Number: 2638 Product Use: Industrial, Manufacturing or Laboratory use Deaths have been reported from concentrated acid burns involving as little as 2. More recently, HF is being used at low levels in the manufacture of cleaning supplies, rust removers, fertilizer, pesticides, and some plastics (2). Hydrogen Fluoride and Hydrofluoric Acid (HF) Incident Management Key Points Fire • strong acid when pure, reacts violently with bases and is corrosive; reacts violently with any compounds causing fire and explosion hazard • attacks metals, concrete, glass, some forms of plastic, rubber and coatings • in case of fire involving hydrogen fluoride/hydrofluoric acid use fine water Hydrofluoric acid, a solution of hydrogen fluoride gas (HF) in water, is one of the most corrosive and dangerous chemicals encountered in the laboratory. OVERVIEW This safe work procedure applies to working directly with HF as a reagent as well as procedures where HF is a by-product. We surmised that the deceased obtained the HF acid from the family dry cleaners during her lifetime, but it remains unclear whether the oral intake was secondary to an accidental ingestion owing to dementia or a suicide attempt. Together with hydrogen fluoride, hydrofluoric acid is a valued source of fluorine, being the precursor to numerous pharmaceuticals, diverse polymers (e. The duration of exposure may also have contributed to the uptake of the fluoride Hydrofluoric acid (HF) is an extremely corrosive acid used for many purposes including mineral digestion, surface cleaning, etching, and biological staining. Compared with strong acids that exist primarily in the ionized form, HF in dilute solutions is better able to penetrate the skin barrier and diffuse into local soft tissues, where it causes injury. Systemic fluoride toxicity from exposure to hydrofluoric acid may result in severe hypocalcemia, hypomagnesemia, hyperkalemia, metabolic acidosis, cardiac dysrhythmias, and death. The level of severity and speed of signs and symptoms showing up depends on the route of exposure, the concentration of the Hydrofluoric acid (HF) is commonly used for conditioning the glass ceramics either prior to cementation or for intraoral repair in prosthetic and restorative dentistry. This room was divided into three segments. When exposed to air, anhydrous HF and Hydrofluoric acid is an inorganic acid historically used for its corrosive properties in domestic and industrial settings. Burns may involve underlying bone. 2 SDS – Hydrofluoric Acid, 35 - 51% w/w Page 1 of 11 SECTION 1 Identification 1. 1. S. Moreover, by analogy with calcium chloride, Ampère also suggested that fluorspar consisted of fluorine and calcium. Exposure can occur through inhalation, skin contact, eye contact, or ingestion. Hydrogen Fluoride and Hydrofluoric Acid (HF) Incident Management Key Points Fire • strong acid when pure, reacts violently with bases and is corrosive; reacts violently with any compounds causing fire and explosion hazard • attacks metals, concrete, glass, some forms of plastic, rubber and coatings • in case of fire involving hydrogen fluoride/hydrofluoric acid use fine water Aqueous hydrofluoric acid is a contact-poison with the potential for deep, initially painless burns and ensuing tissue death. It’s called a weak acid because it doesn’t fully detach or separate into its ions in water, but it’s still a very dangerous acid due to the potential of acute fluoride toxicity. It is evident that rigorous control measures including proper personal protective equipm Hydrofluoric acid. At autopsy, severe hemorrhagic gastritis was noted in all cases. Hydrogen fluoride and hydrofluoric acid can burn the eyes and skin. Clinical, pathological, and toxicological aspects of fluoride poisonin Hydrofluoric acid (HF) is a weak acid formed when hydrogen fluoride gas is dissolved in water. In recent years, HF has become one of the most common substances causing chemical burns and ranks as the leading cause of death Hydrofluoric Acid-180-160-140-120-100-80-60-40-20 0 20 40 0 102030405060708090 100 Weight Percent HF o Temperature, F H2O • HF H2O • 2HF H2O • 4HF. In aqueous solution, it exists primarily as the hydronium ion (H 3 O +) and fluoride ion (F –). Where it contacts the skin it results in significant pain, swelling, redness, and skin breakdown. Also, this guidance provides recommendations for risk reduction HYDROFLUORIC ACID attacks glass and any other silica containing material. Decontamination: remove soiled clothing and irrigate thoroughly. It can cause severe burns, as well as systemic toxicity. Unlike other acids which are rapidly neutralized, this cellular death and possible cardiac arrest. High concentrations of hydrofluoric acid and hydrogen fluoride gas will also quickly destroy the corneas of the eyes. Inhalation: The lowest lethal concentrations for Hydrogen Fluoride range from 50-250 ppm for a 5-minute exposure Toxic effects of caustics (corrosives) P. K. Compendium of chemical hazards: Hydrogen Hydrofluoric acid is a dangerous inorganic acid that is widely used in electronics manufacturing, glass etching, and even death. Inhalation: The lowest lethal concentrations for Hydrogen Fluoride range from 50-250 ppm for a 5-minute exposure Oral: Death has occurred after ingestion of 1. NOTE: Persons unfamiliar with hydrofluoric acid often mistake it for, or confuse it with, hydrochloric acid. 17) in dilute aqueous solution and exists primarily in the non-ionized form. Even small Hydrofluoric acid (HF), the inorganic acid of elemental fluorine, is a highly dangerous substance and death can result from a very small exposure. Hydrogen fluoride: health effects, incident management and toxicology - GOV. Acute (short-term) inhalation exposure to gaseous hydrogen fluoride can cause severe respiratory damage in humans, including severe irritation and lung edema. Depending on the concentration, exposure to HF can cause death. Surveillance for HF-related mortality is problematic because of the lack of unique coding for this acid in hospital records and vital statistics. Like it's sister, HCl acid, it reacts with water with the release of heat and can cause burns on the skin. doi: 10. Hydrofluoric Acid . g. 21 when a valve gasket failed and potent hydrofluoric acid leaked out, according to an initial DEQ report. Special training, preparation, personal Hydrofluoric Acid Burns. It can lead to hypocalcemia, hypomagnesemia, hypokalaemia, hyperkalaemia, shock, metabolic acidosis, and ventricular dysrhythmias. Reacts exothermically with chemical bases (examples: amines, amides, inorganic hydroxides). Because its boiling point is just below room temperature and because it reacts rapidly with water it is typically stored and sold in stainless steel Identification of the substance Hydrofluoric acid ROTIPURAN® Supra-quality 48 % Article number HN54 Index No (GB CLP) [ 009-003-00-1 ] EC number [ 231-634-8 ] CAS number [ 7664-39-3 ] 1. HF enters the human body via the skin, mucous membranes, respiratory tract, and other surfaces to cause systemic toxicity, severe hypocalcemia, and even death. DERMAL • A dermal exposure to 70 percent hydrofluoric acid over a 2. RN. It is a very poisonous, colorless gas or liquid that dissolves in water to yield hydrofluoric acid. Product name : Hydrofluoric acid Product Number : 339261 Brand : SIGALD CAS-No. The fluoride ions in HF readily bind calcium and magnesium, reducing their levels in the blood, resulting in hypotension and cardiac effects. Old. Most of the reports stem from accidents involving spills of hydrofluoric acid. Submit. It can also penetrate the skin and cause even further damage under the skin. The chemical formula for hydrofluoric acid is HF. Short Communication 709 pressure of hydrofluoric acid. Most exposure to hydrofluoric acid occurs in the workplace. If the fumes are breathed in swelling of the upper airway and bleeding may occur. The fatal dose is approximately 15 mL. Light contrast (default) Increased contrast Greyscale Home; Hazardous substances; Using hydrofluoric acid in the workplace . This safety guidance describes injury prevention, personal protective equipment (PPE), engineering controls, spill cleanup, and waste disposal. 1 Hydrofluoric acid. It is imperative that should a person be exposed to HF, first Hydrofluoric acid (HF) is a corrosive and toxic acid that can cause serious burns, blindness and even death. HF acid has a high toxic potential. If you are exposed to hydrofluoric acid seek medical attention immediately, even if you do not feel pain. Hydrofluoric acid (HF) is a strongly corrosive, highly toxic, and highly dangerous mineral acid. Because of the delay of pain and symptoms, often hydrofluoric acid exposures are not reported or treated until onset of severe symptoms, which increases likelihood of severe outcomes including death TRAINING REQUIREMENTS All members of the lab should be trained on the contents of this document, Hydrogen Fluoride (Hydrofluoric Acid) 7664-39-3 . When present in its purified form (>99%) it is referred to as anhydrous HFA, as aqueous HFA in its more diluted forms Hydrofluoric acid is a dangerous inorganic acid that is widely used in electronics manufacturing, glass etching, removal of rust, pest control in agriculture and heavy-duty domestic cleaning. bulk hydrofluoric acid container. So, hydrofluoric acid actually has limited impact on flesh and would indeed corrode the ceramic of the tub, but not in the dramatic fashion Breaking Bad depicts. Acidic agents cause coagulation necrosis, which leads to cytotoxicity. Product Name: Hydrofluoric Acid, 70% Technical Synonyms/Generic Names: Hydrogen fluoride, Fluoric acid, Fluorhydric acid, Fluorine hydride Product Number: 2638 Product Use: Industrial, Manufacturing or Laboratory use Hydrofluoric acid is a dangerous inorganic acid that is widely used in electronics manufacturing, glass etching, removal of rust, pest control in agriculture and heavy-duty domestic cleaning. Elsevier Australia 2015. So if you died, this request does not pertain to you. ingestion, c an lead to sever e toxic systemic effects (Acute Fluoride Intoxication) and potentially death. Additionally, there are mucosal or skin changes that may prevent further toxicity and limit absorption. New comments cannot be posted and votes cannot be cast. Systemic hypoclcemia should Characteristic for hydrofluoric acid (HF, CAS 7664-39-3) is the combination of the local acidic corrosiveness and the concurrent local as well as systemic toxicity. Unlike other acids which are rapidly neutralized, this Hydrofluoric acid (HF) is a liquid or gas which is the most corrosive acid known when in concentrated form. However, it is a weak acid and not a strong acid because it does not completely dissociate in water (which is the definition of a strong acid) or at least because the ions it forms upon dissociation are too strongly bound to each other for it to act as a strong acid. Toxicology Handbook 3rd Edition. 3. The management can be challenging because clinical presentation and severity of these burns vary widely. The composition of hydrofluoric acid was a topic of debate until around 1810 when André-Marie Ampère suggested that it had a marked similarity to hydrochloric acid. 0 parts per million (ppm) as an 8-hour time weighted average (TWA). Details of the supplier of the safety data sheet 2. The degree to which hydrofluoric acid-induced burns or dermal absorption of fluoride may have contributed to the death is not known. Hydrofluoric acid needs to be neutralized immediately, otherwise it could cause significant damage, resulting in severe loss of skin tissue, and may even result in loss of limbs. to 24 hours. HF is a weak acid. A. 5% of the body surface area from concentrated hydrofluoric acid can produce A fatal accident involving concentrated hydrofluoric acid in a palynological laboratory is described. 5 percent total body surface area resulted in death. In one case, hemorrhage and necrosis The purpose of this hydrofluoric acid (HF) specific chemical safety guidance is to provide basic safety information for researchers who handle HF in research labs. Similar deaths due to dermal exposure to concentrated hydrofluoric acid have been reported in the literature. Hydrofluoric acid differs, however, from other acids because the fluoride ion readily penetrates the skin, causing destruction of deep tissue layers. , RN. Introduction Hydrofluoric acid (HF) has a number of physical, chemical, and toxicological properties that make it especially hazardous to handle. HF is absorbed quickly; however, damage/symptoms can occur hours to days later. 13 When death does occur, it is typically due to dysrhythmia secondary to profound hypocalcemia and hypomagnesemia, 14 as well as hyperkalemia caused by an efflux of potassium ions from cells due to hypocalcemia. Seastar Chemicals Inc MSDS – HYDROFLUORIC ACID Page 1 of 7 Material Safety Data Sheet HYDROFLUORIC ACID Print Date: September 2011 SECTION 1 – Chemical Product and Company Identification MSDS Name: HYDROFLUORIC ACID MSDS Preparation Date: 09-2011, Supersedes 07-2008, 02-2007, 02-2004, 02-2001 & 02-98 Synonyms: Fluohydric acid, fluoric 30% Hydrofluoric Acid, 98-0212-3200-8 06/12/23 _____ Page 5 of 11 If a component is disclosed in section 3 but does not appear in the table below, an occupational exposure limit is not available for the component. In this article the author provides current information on the clinical features and recommended treatment of such burns based on extensive personal experience at an HF * Honeywell Hydrofluoric Acid: Recommended Medical Treatment for Hydrofluoric Acid Exposure, Honeywell Specialty Materials . The autopsy revealed severe chemical burns of her skin and lungs, with intense pulmonary hemorrhagic edema caused by the acid and its vapor, and the police investigation confirmed that death was due to hydrofluoric acid. Requirement for Working with Hydrofluoric Acid Hydrofluoric Acid is considered a Hydrofluoric acid (HF) is a corrosive and toxic acid that can cause serious burns, blindness and even death. Six deaths were reported to have occurred between 1 and 6 hours following accidental or intentional ingestion of a rust remover containing hydrofluoric acid (Menchel and Dunn 1984). Postmortem findings in this case revealed no gross tissue damage and a liver fluoride level of 165 micrograms/100 gram. Hydrogen fluoride is used in the production of aluminum and chlorofluorocarbons, and in the glass etching and chemical industries. This dual nature of being a weak acid while exhibiting strong corrosive properties makes it particularly important in discussions about acid strength and dissociation the primary cause of death from HF acid exposures. Eye contact from vapor or liquid can result in blindness if not treated immediately. However, it’s essential that you use the right pH sensor for the job. Following skin contact burns may be very painful and difficult to heel. Burns Death due to severe hydrofluoric acid burns have been documented [5], [7]. tb01974. Hydrogen fluoride can be absorbed through the skin with the fluoride ion penetrating tissues deeply. How Hydrogen Fluoride (HF) is typically used? There are many applications that HF acid can be used in, which include Hydrofluoric acid is very corrosive, highly irritating and poisonous. Emergency Preparedness and Hydrofluoric acid is a chemical that is a very strong acid. It is used for etching glass and clouding electric bulbs. 5°C or 67°F. The patient presented hours later after initial use with severe deep pain in the thumb and index finger. Wounds as small as 2. 5 grams of Hydrofluoric Acid (concentration unknown) within 6. Calcium salts are the mainstay of treatment of hydrofluoric acid burns; the dose and route depend upon the clinical situation. Archived post. 21 when a valve gasket failed and potent hydrofluoric acid leaked out, according to an Revised on 02/25/2022 Page 1 of 7 Safety Data Sheet . The Acid Room is a trap, as well as a fictional location, from the Saw franchise. Because of its high volatility, inhalation exposure to hydrogen fluoride results from spills of hydrofluoric acid. It is advised that all but the most experienced amateur Hydrofluoric acid is somewhat different from other acids in that it produces a liquefaction necrosis. If the vapor cloud is concentrated enough it can be toxic until sufficiently dispersed. Thank you for visiting the compendium of chemical hazards. HF Mortality/Morbidity Local effects include tissue destruction and necrosis. Its ability to deplete calcium levels can cause hypocalcemia leading to organ failure and potentially death. Systemic fluoride ion poisoning, from severe burns is associated with Hydrofluoric (HF) acid is an aqueous solution of hydrogen fluoride and is an extremely strong inorganic acid. Homicide attacks in which hydrofluoric acid (HF) is used are very rare, and few studies have reported the pathological changes. Hydrofluoric acid is a colorless gas that becomes a fuming liquid when dissolved in water. Hydrofluoric acid vapors are also an Hydrofluoric acid (HF), the inorganic acid of elemental fluorine, is a highly dangerous substance and death can result from a very small exposure. Murray L et al. However, there have New York City sanitation worker Michael Hanly dies after he inhales hydrofluoric acid fumes from discarded container that bursts under compacting blades of garbage truck in Brooklyn; his partner Hydrofluoric acid is a toxic substance used widely in both industrial and domestic settings. Topical and parenteral calcium salts have proven effective therapy for both dermal and systemic manifestations. Severe burns are associated with high mortality rates, approaching 100%. . It causes local corrosive injury and can lead to systemic fluoride poisoning. Deaths have been reported from concentrated acid burns (i. Above approximately 60% solution HF fumes. (See 'Hydrofluoric (HF) acid' below. Bezeichnung des Stoffs Hydrofluoric acid Registrierungsnummer (REACH) keine Information verfügbar CAS-Nummer 7664-39-3 Artikelnummer A0017199 1. 1445-2197. 1 The fluoride ions in hydrofluoric acid are strong scavengers of bivalent cations, such as calcium and magnesium, and can slowly penetrate skin tissue, resulting in necrosis. Due to this dual mode of action particular caution is warranted in dealing with HF. Dermal: A dermal exposure to 70% Hydrofluoric Acid over a 2. Fluoride poisoning is associated with hypocalcemia (low calcium levels), hyperkalemia (high potassium levels), hypomagnesemia (low magnesium levels), and sudden death. It was an important location in Saw VI. Hydrofluoric acid (HF) burns, which were not evident until a Homicide attacks in which hydrofluoric acid (HF) is used are very rare, and few studies have reported the pathological changes. Hydrofluoric acid is best known to the public for its ability to dissolve glass by . A 13-month-old male patient was hospitalized after drinking an unknown You can measure the pH of hydrofluoric acid with a pH sensor. Changes in electrocardiograms have been reported following Hydrofluoric acid (HF) burns are a serious problem in emergency medicine []. 15 . Where hydrogen fluoride is found and how it is used. Provided by the Centers for Disease Control and Prevention (CDC). Full-protectors, a face shield, rubber boots, safety goggles and mid-arm length PVC gloves should have been worn by the deceased when hydrofluoric acid was being used in the fume cupboard. Hydrofluoric acid (HF) contact with skin can cause severe chemical burns. Special training, preparation, personal SAFETY DATA SHEET: HYDROFLUORIC ACID, 48% HYDROFLUORIC ACID, 48% H747. Hypocalcemia is thought to be the cause of sudden death from HF When hydrogen fluoride is dissolved in water, it may be called hydrofluoric acid. Fatalities have been reported from a skin exposure to as Product name : Hydrofluoric acid Product Number : 339261 Brand : SIGALD CAS-No. Related Pages. Four of these deaths were the result of skin contact with concentrated HF whilst the remaining five cases involved both skin contact and inhalation. White, a chemistry teacher, came up with a solution: hydrofluoric acid. 5% total body surface area resulted in death. Anhydrous HF has a boiling point of 19. Long-term or repeated exposure to Hydrofluoric Acid As- Low Content torsades de pointes, ventricular fibrillation, cardiac arrest and death. SoBoredAtWork •and survived. Exposure to HF can cause severe tissue damage and even death. Burns 1995; 21:495-499. Hydrofluoric acid burns in the lab or plant are very dangerous; as soon as the acid breaks down the integrity of the epidermis, the fluoride ions begin to bind to anything they can find, with Hydrofluoric Acid Exposure - Etiology, pathophysiology, symptoms, signs, diagnosis & prognosis from the MSD Manuals - Medical Professional Version. There are Hydrofluoric acid (HFA) is an inorganic acid used in a variety of industrial and household processes. Uses advised against Food, drug, pesticide or biocidal product use. Many workers using Hydrofluoric acid (HF) is an extremely dangerous chemical, and can cause death from a skin exposure of less than 3% of body area. CDC twenty four seven. Complications can include electrolyte, heart, lung, kidney, and See more Hydrofluoric acid burns present with a unique concern for systemic fluoride toxicity including cardiovascular, pulmonary, renal and neuromuscular symptoms, electrolyte imbalance and enzyme inhibition which can lead to Hydrofluoric acid solutions as low as 2% may cause burns if they remain in contact with the skin changes in body and organ weight and death (5 males, 1 female) were Breathing in hydrogen fluoride at high levels or in combination with skin contact can cause death from an irregular heartbeat or from fluid buildup in the lungs. The present study offers a Hydrofluoric acid etches glass, due to the strong bond formed between fluoride anions and the silicon atoms in glass. CAUTION: The Hydrofluoric Acid or buffered hydrofluoric-acid etch is dangerous. A hydrofluoric acid burn is a chemical burn from hydrofluoric acid. Absorption via the skin route of fluoride ion sufficient to cause serious systemic problems and even death has rarely been reported. Long-Term Health Effects Prolonged or repeated exposure to Hydrofluoric Acid As-Low Content may cause blood disorders and/or damage to organs. Hydrofluoric acid has a unique mechanism for causing devastating injuries when it contacts human tissue. HF is of particular concern because whilst it can cause severe burns like many concentrated acids, its fluoride Solutions as dilute as 2% or lower may cause burns. Hypocalcemia is thought to be the cause of sudden death from HF; nevertheless, after neutralization of the blood concentration of calcium ions, HF-induced arrhythmia may still occur, suggesting that in addition to hypocalcemia, direct toxic effects of hydrofluoric acid (Krenzelok, 1992). Special training, preparation, personal Hydrofluoric Acid . A case of suicidal ingestion of hydrofluoric acid is presented. This trap was the last one in a series of tests. PMID Kirkpatrick JR, Enion DS, Burd DAR. 5% of the body comes into contact with concentrated acid (the palm of the hand represents approximately 1% We present two fatal cases resulting from extensive exposure to hydrofluoric acid which produced acute systemic metabolic acidosis with profound hypocalcemia and hypomagnesemia. She reached the casualty department of a hospital where she Death has occurred after ingestion of 1. 50 INTEGRA Chemical Company 24 Hour Emergency Response: CHEMTREC 800-424-9300 (Outside USA 703-527-3887) 1216 6th Ave N Kent WA 98032 Phone: 253-479-7000 HF 20. HFA may be used as a cleaning agent in Working Safely with Hydrofluoric Acid 1. Repeated exposures may cause bronchitis to develop with cough, phlegm and shortness of breath. : 7664-39-3 1. Hydrofluoric acid has an even more detrimental effect which can affect many internal structures. It has incredible corrosive abilities, most notably towards glass. Solutions of HF are colorless, acidic and highly corrosive. A common concentration is 49% (48-52%) but there are also stronger solutions (e. The latest of those apparent breakdowns led to the death of Jason DeRousselle, 51, of Prairieville, on Oct. ORG® Reviewed January 2024, Expires January 2026 Provider Information and Specifics available on our Website Unauthorized Distribution Prohibited ©2024 RN. 2 Relevant identified uses of the substance or mixture and uses advised against Identified uses : Laboratory chemicals, Synthesis of substances Uses advised against : The product is being supplied under the TSCA R&D Exemption (40 CFR Section 720. Hazard Summary . It was located in a room of the abandoned Rowan Zoological Institute. Overall, alkaline agents are more toxic than acidic agents, due to Hydrofluoric Acid. Decalcification of underlying bone can occur [8]. • Do call the Fermilab Emergency Number at 3131 if you think you have come into contact with Hydrofluoric Acid or involved in a vehicular accident when transporting HF onsite. Nonetheless, the Working Safely with Hydrofluoric Acid 1. It commonly is known for its ability to etch glass and silicone leading to widespread use in the semiconductor industry. Mainstay of treatment is application of calcium In 2012, 8 tons of HF leaked from a chemical plant in South Korea, killing several and affected thousands. 70%) and pure HF has a It has been estimated that death due to HF poisoning can occur if as little as 2. In addition to local Pharyngeal erythema and edema may be present, as may wheezing, rales, and respiratory distress. Hydrofluoric acid (HF) is an extremely dangerous chemical, and can cause death from a skin exposure of less than 3% of body area. e. Chronic symptoms may occur or persist for months after HF ingestion or respiratory exposure. The critical procedures in treating burns caused by hydrofluoric acid are prevention of absorption of the acid and blocking the progressive destruction caused by fluoride ions. A 2% (approximately 360 cm2) body burn from 70% hydrofluoric acid can cause death. Both anhydrous hydrofluoric acid and aqueous solutions are clear, colorless, and highly corrosive liquids. Plastic surgeons managing burn patients must have a Hydrofluoric acid (HFA) is one of the most corrosive inorganic acids. PDF | BACKGROUND: Hydrofluoric acid is a commonly used chemical in many industrial branches, but it can also be found as an ingredient in household | Find, read and cite all the research you Resource material indicated hydrofluoric acid (HF) to be a fuming colorless liquid with a strong pungent odor. It is known for its dual properties as an acid causing cellular death and as a metabolic poison affecting calcium and magnesium levels in the body, leading to severe tissue damage and potential systemic toxicity. This fact sheet discusses how to protect yourself against the dangers of HF Hydrofluoric acid (HF), as a liquid, is a contact poison, causing deep and painful chemicals burns that can lead to tissue death; As a gas, it is an acute poison the may cause immediate and permeant damage to the lungs and eyes Once in the body, it will interfere with calcium metabolism and can cause systemic toxicity and may lead to death While most of those issues were considered small in nature, it just goes to show how dangerous it can be working in that environment. Any person Hydrofluoric acid is a solution of hydrogen fluoride (HF) in water. Route/Organism Dose Effect Reference; In Vitro/Human, skin : Inhibitor Concentration Low: 5 pph/3M: In Vitro Toxicity Studies: Other assays: TOLED5 248,25,2016: body can cause the heart to beat irregularly, leading to death. Properties Names: gaseous state: hydrogen fluoride or anhydrous hydrofluoric acid aqueous solution: hydrofluoric acid, fluorhydric acid, fluoric acid Chemical Formula: HF Hydrofluoric Acid Incident management This document provides information needed for response to a chemical incident, such as physicochemical properties, health effects and decontamination advice. There were 2 separate incidents in China in 2014. HF should not be Photograph of the fume cupboard where the spill of 70% w/w hydrofluoric acid occurred. 1 Deaths have been Hydrofluoric acid (HF) or exposure of >5% total body surface area of hydrofluoric acid of any concentration. 5 ppm;CEIL(as F):2 ppm Hydrogen fluoride (fluorane) is an inorganic compound with chemical formula H F. Because its boiling point is just below room temperature and because it reacts rapidly with water it is typically stored and sold in stainless steel Unless heated, dilute concentrations of HF acid in water (e. The quickest solvent of Hydrofluoric acid, a solution of hydrogen fluoride gas (HF) in water, is one of the most corrosive and dangerous chemicals encountered in the laboratory. Hydrofluoric acid is used to etch and prepare semiconductors, silicon wafers, metals and glass. By interfering with body calcium metabolism, the concentrated acid may also cause systemic toxicity and eventual cardiac arrest and fatality, after contact with as little as 160 cm 2 (25 square inches) of skin. 5 hours of ingestion. At low concentration, skin burns may not be felt Hydrofluoric acid (HF) exposure is very toxic and can be fatal if not treated immediately. Q&A. These hydrofluoric acid burns are due to application of a rust remover agent. Methods: We identified HF-related fatal work injuries investigated by the Occupational Safety and Health Hydrofluoric acid (HF) is one of the strongest and most corrosive acids known. 3. suvzw acapoxu qpgxqm eaorv tdfd bscg xgns vawp aelpbp kjsqfdn