<< /Length 5 0 R /Filter /FlateDecode >> Vinegar (which contains ethanoic acid) and citric acid (found in, guess what, citrus fruits)… The toxicity of HF and HCl are very different. Other ergonomic factors which may have reduced the likelihood of a spill include: Overall, it was noted that the laboratory did not comply with requirements of national standards in the areas of emergency procedures, safe handling and disposal of the chemical and laboratory design. Hydrogen fluoride is a chemical compound with the chemical formula H F.This colorless gas or liquid is the principal industrial source of fluorine, often as an aqueous solution called hydrofluoric acid.It is an important feedstock in the preparation of many important compounds including pharmaceuticals and polymers, e.g. In tegenstelling tot de andere waterstofhalogeniden is waterstoffluoride een zwak zuur. A standard geology technique, which involved the dissolving of sedimentary rock with mineral acids (hydrochloric and hydrofluoric acid), was being undertaken in a fume cupboard. Wanneer waterstoffluoride in water oplost wordt de oplossing fluorzuur genoemd.. HF may be known as Hydrogen fluoride (UN 1052), hydrofluoric acid (UN 1790) or fluorohydric acid. No calcium gluconate gel was applied to the affected area and contaminated clothing was not removed during the flushing with water. Identification numbers are CAS number 7664-39-3, UN: 1052 or RTECS: MW7875000. Background Case reports have identified hydrofluoric acid (HF) as causing fatal work injury, and HF has both local and systemic toxicity. Deaths have been reported from concentrated acid burns involving as little as 2.5% Body Surface Area (BSA), an area roughly the size of your hand is sufficient to cause death. The severity of the burns and absorption of the acid (with liquefaction necrosis of soft tissue and decalcification and corrosion of the bone) have resulted in permanent scarring, disability and death. Because of the low flow rate, the volume of water may have spread the HF onto other parts of the skin. Both versions are commonly referred to as HF in research and industry. Hydrofluoric acid is a solution of hydrogen fluoride (HF) in water. 1341-49-7), a chemical that dissociates into HF when dissolved in water and therefore has similar toxicity. HF is a chemical component in car and truck wash products, such as rust removers, aluminum brighteners, and wash formulations, because it is inexpensive and highly effective. %PDF-1.3 ?��Gդ�#8���f��87r$ƼyU�F�!P���W�L�Jf�P�)�GD����e�/dr@����wܖby�d��;2�Y9��A%�o%ө[`LG�*=�8��pe}�;O��X��hF* n`e�� �`?�" Following flushing, the technician, who appeared to be in severe pain and shock, immersed himself in a chlorinated swimming pool at the rear of the workplace, where he remained for approximately 35-40 minutes before ambulance help arrived. Aqueous hydrofluoric acid is a contact-poison with the potential for deep, initially painless burns and ensuing tissue death. Radiological and Environmental Management, Graduate Admissions: Dr. Stephen Hoffmann, Assistant Dept. Unlike other acids, dilute HF can react with tissue and bone without significant initial pain. Thus, hydrogen fluoride (HF) is produced in two forms, as anhydrous hydrogen fluoride (the gaseous form, HF(g)) and as aqueous hydrofluoric acid (the aqueous solution form, HF(aq)). The technician sustained burns to 9% of his body surface area, despite washing his legs with water from a makeshift plumbing arrangement that supplied water at 6 litres/min. Ingestion: May be fatal if swallowed. The injured man was hypothermic and hypocalcaemic on admission to an intensive care unit at a nearby hospital, and soon became unconscious. Even brief exposure to high levels of the vapor may cause severe damage to the respiratory system. DO NOT confuse hydrofluoric acid with hydrochloric acid (HCl). Hydrofluoric acid (HF) is a solution of hydrogen fluoride in water. Hydrofluoric acid causes painful tissue inflammation and necrosis on contact. As a result of the fact that the technician was working alone, it is unclear whether the spill was from the digestion cup or the 2-1 bulk acid container. In addition to the strongly corrosive hydrogen ions, HF generates fluoride ions which can readily penetrate skin and tissue, and result in necrosis of subcutaneous tissue. This acid is used to make fluorine-containing drugs, including Teflon and fluorine gas. Hydrofluoric Acid HF: With a pKa of 3.15 HF is considered a weak acid in that it is not full disassociated below a pH of about 5.5 and will form complexes with many compounds including itself. Disclaimer: Answer contains graphic images. Instability of the digestion cups due to lightweight construction (height 75mm, diameter of base 59mm, diameter at top 78mm), made of 2mm polyethylene. It has a molecular weight of 20.01 and can typically be found in concentrations of 48-52% in water. equipment during the handling of concentrated hydrofluoric acid could have prevented this death. Aqueous hydrofluoric acid is a contact-poison with the potential for deep, initially painless burns and ensuing tissue death. Long pants and sleeves 5. If you have trouble accessing this page because of a disability, please contact ScienceIT at sciencehelp@purdue.edu. The original article was written by Luciano Muriale, Evelyn Lee, and Steven Trend of Worksafe Western Australia, and John Genovese of the Chemistry Centre of Western Australia and published by Elsevier Science Ltd. Contact with the eyes could result in blindness. Hydrofluoric (HF) acid, one of the strongest inorganic acids, is used mainly for industrial purposes (eg, glass etching, metal cleaning, electronics manufacturing). '�d�5�2�7ȚB�jO�%�\��W$9�-+(;d-$Q� ����rit�|v�. Even brief exposure to high levels of the vapor may cause severe damage to the respiratory system. There were reported to be 47 deaths. Acid resistant apron 4. and hydrogen fluoride gas (4,5). Hydrofluoric acid (CAS#7664-39-3) is the aqueous form of hydrogen fluoride gas, miscible with water. As indicated in the article, proper personal protective equipment (PPE) includes PVC coverall with sleeves to the wrist or full length PVC apron with sleeves protectors, mid-arm length gloves, face shield, safety goggles and rubber boots. @a�#����%k�k����Ww���>0�!�7idk�����1M!�����?��VMH����I��$�AB��¬M��"BKle�&@'>�N��/A �8�ǰ�y�d6����>��r`��ĪY9�Zu�'�E8�-.�~�X?�㡥ad�b���gm Do not let the classification as a weak acid fool you, HF is a very aggressive and dangerous acid. It is commonly used to etch glass and silicon wafers. Hydrofluoric acid is corrosive and can cause severe burning of the mouth, throat and stomach. �]}r �ܸ'�H�#,��"�ن �~s. Chronic exposure to low level of HF vapor may irritate respiratory system and cause problem to the bones. An ergonomic assessment of the work station indicated the following: The laboratory personnel could have minimised the likelihood of a spill through the introduction of cup supports for the digestion cups. 6, pp 705-710, 1996. Systemic hypocalcemia should be considered a risk whenever the body surface area of skin burns from concentrated HF exceed 25 in2 (160 cm2), or about the size of the palm of your hand. 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. Chronic exposure to low level of HF vapor may irritate respiratory system and cause problem to the bones. Even small splashes of high-concentration hydrogen fluoride products on the skin can be fatal. Also look out for any products containing ‘bifluoride’ such as ammonium bifluoride, sodium bifluoride, potassium bifluoride or similar as these can produce hydrogen fluoride if an acid is present. At low concentration, skin burns may not be felt immediately although the delayed effects could be serious. Disclaimer: Answer contains graphic images. Supervisors must also make sure that staff and students working with HF are familiar with specific emergency procedures. Mr. Hanly inhaled the acid's fumes, leading to his death in the emergency room of New York Hospital, Mr. Chalfen said. 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. He subsequently died from multi-organ failure 15 days after the hydrofluoric acid spill.Points from accident investigation. The DIGEST is a newsletter published by the Universities Safety Association. Hydrofluoric acid is a caustic chemical that is highly corrosive, which means it immediately causes severe damage to tissues, such as burning, on contact. This article discusses poisoning from swallowing, breathing in, or touching hydrofluoric acid. 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. Hydrofluoric acid also may be found in home rust removers. Exposure usually is unintentional and often is due to inadequate use of protective measures. Chronic exposure to low level of HF vapor may irritate respiratory system and cause problem to the bones. Suitable gloves include those made with PVC and neoprene. This is what happens when 70% industrial grade Hydrofluoric acid (HF) comes into contact with glass. Head, Undergraduate Information: Dr. Beatriz Cisneros, Chemistry Advisor, An equal access/equal opportunity university. potassium levels), hypomagnesemia (low magnesium levels), and sudden death. This article looks at the factors that may have contributed to its occurrence. Pain associated with skin exposure to HF may not occur for 1-24 hours. Aims Prognostic impacts of serum uric acid (UA) levels in patients with chronic heart failure (CHF) remain inconclusive, especially for the whole range of serum UA levels. 1 Deaths have been reported from concentrated acid burns (involving ≥ 50% HF solutions) to as little as 2.5% of body surface area, which is equivalent to approximately one hand and forearm. No calcium gluconate gel was applied following dermal exposure. polytetrafluoroethylene (Teflon). Hydrofluoric acid or HF is an extremely corrosive acid. HYDROGEN FLUORIDE (HF), HYDROFLUORIC ACID (HFA) 16735 Chemical accident in Netherlands with sulphuric acid Quality: * * Year: 1999: Country: NL: Activity: PROCESSING: Location: CHEMICAL FACTORY: Chemicals: SULPHURIC ACID, HYDROFLUORIC ACID, WATER: 16451 Chemical accident in South-africa with hydrofluoric acid Quality: * * Year: Unlike other mineral acids, hydrofluoric acid will attack glass, concrete, rubber, quartz and alloys containing silica. Hydrofluoric acid vapors are also an inhalation hazard and can cause ocular irritation. Concentrated HF (70%) will fume on contact with air. Concentrated HF (70%) will fume on contact with air. death will result from depletion of calcium from blood and tissues. �c�3FR���`�'ʵ�I�+g΅E��v�aM�� ^���#����2TwM��9���ZvM Think of those scenes in the Alien movies, where the alien's blood drips through solid metal, destroying everything in its path. Results For the 11 year period, OSHA investigated nine deaths in eight incidents which involved HF. The deceased did not have access to an emergency shower to remove the HF, instead the skin was washed from a hose that provided water at a very low flow rate. Waterstoffluoride, fluorwaterstofzuur of vloeizuur is een zeer corrosief zuur met als brutoformule HF. Hydrofluoric (HF) acid, one of the strongest inorganic acids, is used mainly for industrial purposes (eg, glass etching, metal cleaning, electronics manufacturing). Hydrofluoric Acid . Identification numbers are CAS number 7664-39-3, UN: 1052 or RTECS: MW7875000. Severe health effects or death will result from depletion of calcium from blood and tissues. HF is a liquid or gas which is the most corrosive acid known when in concentrated form. The fluoride ions in HF readily bind calcium and magnesium, reducing their levels in the blood, resulting in hypotension and cardiac effects. HF is used at a number of locations at UST. The technician involved was believed to be seated when he knocked over a small quantity (between 100 - 230ml) of hydrofluoric acid (HF) onto his lap, splashing both thighs. Concentrated HF burns can be fatal if only 2% of the body surface area is exposed. Hydrofluoric Acid (HF) Hydrofluoric Acid (HF) is a highly corrosive inorganic acid. Even so, it's probably the most dangerous acid in this list because it's the one you're most likely to encounter. Hydrofluoric acid is extremely corrosive! Systemic hypocalcemia should be considered a risk whenever the body surface area of skin burns from concentrated HF exceed 25 in2 (160 cm2), or about the size of the palm of your hand. Release of Hydrofluoric acid from Marathon Petroleum Refinery, Texas, USA. 23 Because calcium is required for cell life, fluoride’s calcium-binding capacity may result in rapid cell death. It has been estimated that death due to HF poisoning can occur if as little as 2.5% of the body comes into contact with concentrated acid (the palm of the hand represents approximately 1% of body surface area). Four deaths were from skin contact with concentrated HF, and five deaths involved both skin contact and inhalation of vapor. HF-based products often include additional chemicals that can burn, including sulfuric acid and phosphoric acid. We’ve talked about hydrofluoric acid before, mostly because it’s very, very scary. stream Do not let the classification as a weak acid fool you, HF is a very aggressive and dangerous acid. Unsafe work practices were factors in all of the deaths. 2. decalcification of bone, cardiac arrhythmia and death. Special training, preparation, personal A fatal accident occurred in a palynological laboratory in Australia, resulting in the death of a technician. Lack of available space in the fume cupboard, entrance of the fume cupboard was 470mm wide and 410 mm high. �3���[����we�YB����yF�&�e;Y�|�Bos 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. Contact HSEO for replenishment of supply. Contact with the eyes could result in … Hydrofluoric acid (HF) causes chemical burns and is a serious systemic poison by all routes of exposure. HF Acid Attacking Bone matter. Sensitive viewers beware images of HF acid burn damage to hand and legs. Safety shower and emergency eyewash must be available in or near the lab. The main cause of death is from the fluoride in HF entering the bloodstream, trapping calcium and magnesium and quickly damaging the heart, muscles and nervous system. It may have a commercial name like ‘Rustoff’ or ‘Aluminium brightener’ - so read the labels and safety data sheet (SDS). It’s used to etch designs into glass and clean steel. Because of its high reactivity toward glass and moderate reactivity toward many metals, hydrofluoric acid is usually stored in plastic containers (although polytetrafluoroethylene is slightly permeable to it). It is used to make most fluorine-containing compounds; examples include the commonly used pharmaceutical antidepressant medication fluoxetine (Prozac) and the material PTFE (Teflon). At physiologic pH, HF dissociates to fluoride and hydrogen ions, leading to … Exposure usually is unintentional and often is due to inadequate use of protective measures. His condition continued to deteriorate despite, subcutaneous injections of calcium gluconate and administration of intravenous calcium and magnesium. Provision of a fume cupboard that had more working space; Use of smaller sized bottles or better designed 2-1 70%w/w hydrofluoric acid containers (to minimize awkward pouring postures) or introduction of a graduated dispensing unit to negate pouring the acid; Provision of an appropriate bench height for the operator. Refinery Explosions Raise New Warnings About Deadly Chemical Chemical experts say recent refinery explosions could have been far more devastating if deadly hydrogen fluoride was released. PURPOSE Hydrofluoric acid (HF) is an extremely dangerous chemical, and can cause death from a skin exposure of less than 3% of body area. 65�LZS�����q ����=GÖD����G�\]"�lB+�c�|F�c��@ 1. Goggles 2. The only personal protective equipment worn was two pairs of wrist length rubber gloves and a pair of polyvinyl chloride sleeve protectors. Closed toe shoes 6. The working height of the fume cupboard was too low (by between II 0 and 160mm) for the technician to work comfortably in a standing position. �PR�jO�46C'W�j��H���-x����hq��9^ۻs��V`�3�!1�{�� W#�ح]M�&FS�M��$����]-�� �r��2�;�?��F�YO#w����A���'�>�tǰ��Vn��U�.�?�s�E>)PH�q�ŝjҶ!�y2�ijѡI���L���&�''��BEz���l��G������h�>��f�;��xu��z���2J�z�_������E>$�8�)���,�Cm�qa�(��/��R\�k^��*LH�(��k� Hydrofluoric acid is a highly corrosive acid, capable of dissolving many materials, especially oxides. Taken from http://www.ab.ust.hk/hseo/tips/ch/ch005.htm. Hydrogen fluoride is a chemical compound with the chemical formula H F.This colorless gas or liquid is the principal industrial source of fluorine, often as an aqueous solution called hydrofluoric acid.It is an important feedstock in the preparation of many important compounds including pharmaceuticals and polymers, e.g. Hydrofluoric acid (HF) is only a weak acid, meaning it doesn't fully dissociate into its ions in water. Two products contained ammonium bifluoride (NH 4 HF 2 , CAS no. Aqueous solutions dilute as 0.1 M will pH at approximately 1.0. glass etching, brick cleaning, microchip etching, electroplating, and leather tanning) and even as an active ingredient in several household chemicals such as rust remover, aluminum brighteners, and heavy-du… 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. �~�-2�B|:�pΪ��l6���!ܒ;�N�����жm��r��� �}����Cր$]˜� �8)ԯ��K��>A�#����� Even so, it's probably the most dangerous acid in this list because it's the one you're most likely to encounter. ��W@�fT>���W��*T�+�H8�'zў���S��o��s母֬{Dx]�U-V�ǘ�W��-;ۭ^ЌO����&���BO��GcoNO�'IJ�#A*f�����Jx�u�@�Q�${m���G��1�Ьr$s�PY`7��]����Zِqc1�uD VҮ�~��d��{��_��ݫ�F�q�&M��i�(3 Surveillance for HF‐related mortality is problematic because of the lack of unique coding for this acid in hospital records and vital statistics. m���OOaFFB��������c�`$��ZK˲�/���v�՘q�#+�zv*=��0G�2J�T�]q��#��I�A� �� #�q��XFB�Tv>� AJ^;D����^R@���,����Z�U��� ��OIp�z\y+�!�g#�n�c����� ���35��\��X�Ιo笔��,`Hp���F�8-l ȵ�8�| HF can penetrate the skin extremely easily and decalcifies bones leading to tissue necrosis, which may result in amputation and death. This acid is used to make fluorine-containing drugs, including Teflon and fluorine gas. Users must observe all safety precautions including implementation of safety control measures and the use of proper personal protective equipment. Hydrogen fluoride is a gas which when in solution with water forms hydrofluoric acid,HF. Therefore, it must be handled with extreme caution. Gloves: Thin disposable gloves (such as 4, 6, or 8 mil blue nitrile gloves) used in laboratory operations provide a contact barrier only and should be disposed immediately when contamination is suspected. Selection of specific PPE depends on nature of the operation and the quantity of HF involved. �d��|>��k��x���|1#_���+��h�.g��vQM0���`l�Ʒ��(�@1)�ҩ�#�R� �߱?JOD�} ��R){#�n��z��K �ˡh1}5qD�~��=r��.��#`{3|�N��!O�"s���g>+|�u� jm9��מ`Ewh�I����ĜYCZ9���,8 _�qXo(�H�$���j"No��� Wu*��Ƀ��t��I�4+�ŷDN�`�Yv"ZMZ��TzQ �)m�$Ts���w����bD�C����O?�����]� 4�l>:c���Ʈ����O�VU��f�Ϫ�e�a �b BX�H����3��_�3�Q�R"u�^2,j�(')r��S�R�̖�D�J|�N��\��#Yr�Ě��-��*y| �Av| �^{�($�ʳ(����J It can also be called hydrogen fluoride, fluorohydric acid or HF. Full length PVC coveralls with sleeves to the wrist or a full-length PVC apron with sleeve protectors, a face shield, rubber boots, safety goggles and mid-arm length PVC gloves should have been worn by the deceased when HF was being used in the fume cupboard. It has a molecular weight of 20.01 and can typically be found in concentrations of 48-52% in water. The risks. Wrong. Skin contact with concentrated solutions of HF can cause severe burns and death. Four deaths were from skin contact with concentrated HF, and five deaths involved both skin contact and inhalation of vapor. Hydrofluoric acid (HF) burns are serious, and it's important to seek medical attention immediately after a burn even if you don't feel symptoms. Properties Names: gaseous state: hydrogen fluoride or anhydrous hydrofluoric acid aqueous solution: hydrofluoric acid, fluorhydric acid, fluoric acid Chemical Formula: HF Skin Exposure: Strong HF acid concentrations (over 50%) and anhydrous HF in particular, cause immediate, severe, burning pain and a whitish discoloration of the skin that usually proceeds to blister formation.The usual initial signs of a dilute solution HF burn are redness, swelling and blistering, accompanied by severe throbbing pain. Unsafe work practices were factors in all of the deaths. FACTS Online chemical incident safety database. 1. HF is commercially available in concentrations ranging from 10% to 49% with 49% HF being the most common. Stealth Acid Damage. Torrance!Refinery!ActionAlliance! ��&"� 2. Of course the vast majority of acids are much more boring. Supervisors must ensure the availability of protective equipment and the antidote, calcium gluconate cream at the work site. \{��5��n���V�D��u=曑*�Sx��ا�nn�%��,̀�ET|I��)��ge�H�Ø@�R0� ��!9�nZ(MЪb����&*��s��(x`��������`����Q���2+�� Xs(8�q��_T�G�X�) �Ț����7�pF)��-���f~a��Ӧ�R����Z\���9�e�n� !-PGqs��y���H�P\��%p��e�h�q� Y}R�*���>*���?���>,j�vPB�U{}����i�Nln$���+���5�Ay��rB���%(.���3%���0f��뎮 Hydrofluoric+AcidIncidents!in#Torrance#&#Elsewhere1" Apartial"chronology"! x�\�nˑ��W�f� ���wϬd��1��„��f!�&{,���R�^��ĉ�s2�A��-�T�q�Y�\�R���t����t�Zl��j��6�]So�3�X/��?�ׇ���i�_���}���+{�滣@���M��n;[ֳ��&�l������O��/��lg�ٺ����e�����֋M}�����f:3�/o�ԓ�_�x=y��������߯w�ꋦ�ΫI}m�>�̋��o�_[�3.�������}������i؜�f�����o�v�{~�~�H�� �����?\ֿTX��~�8�G�q����B�鬢8����1v�RH���I�b��R��8~� �w͵��+��d���zr>�82��T�D59`�e�.W���y���C�����s�\M�� However, HF is not only a strong corrosive, but also highly toxic towards higher concentra- tions: Local effects include tissue destruction and necrosis, deaths have been reported from concentrated acid burns to as little as 2.5 % body surface area. The exposure to this chemical can occur in several different mechanisms from dermal, ocular, inhalation, and oral routes into the body. Aqueous hydrofluoric acid is a contact-poison with the potential for deep, initially painless burns and ensuing tissue death. If HF is not rapidly neutralized and the fluoride ion bound, tissue destruction may continue for days and result in limb loss or death. 4 0 obj The danger of HF attacking bone calcium and the is a bit over stated: "Exposure to hydrofluoric acid may not be initially painful, and symptoms may not occur until several hours later, when the acid begins to react with calcium in the bones." Severe health effects or death will result from depletion of calcium from blood and tissues. Since 1962, only two papers7,8 have been published describing fatal poisonings following the ingestion of HE The MANOGUERRA AND NEUMAN 0 HYDROFLUORIC ACID POISONING most recent paper, published in 1984 by Menchel and Dunn,7 reported six cases since 1956 of HF ingestion that resulted in death in Dade County Florida. Hydrofluoric acid (HF) is a clear, colorless corrosive liquid that is extremely hazardous. Both versions are commonly referred to as HF in research and industry. Inhalation of HF produces an immediate injury to the lining of the lungs with hemorrhage pulmonary edema and death. HF is a calcium seeker. Hydrofluoric acid is a chemical that is a very strong acid. This article was taken from the June1997 issue of DIGEST and was based upon the paper which appeared in Ann.Occup.Hygiene, Vol. SallyHayati,!October!7,2015! Hydrofluoric Acid . 30th October 1987 Accident summary. Concentrated HF burns can be fatal if only 2% of the body surface area is exposed. If concentrated HF vapours are inhaled then death can occur very quickly. Hydrofluoric acid is readily absorbed through skin and damages tissues by 2 mechanisms (the double whammy): Hydrofluoric acid (HF) can form a toxic cloud at room temperature while exposure can lead to severe health problems and even death. Thicker (10-20 mil) PVC or neoprene gloves provide better resistance but do not provide the necessary dexterity for many lab procedures. info@safetorrancerefinery.org! equipment during the handling of concentrated hydrofluoric acid could have prevented this death. Thus, hydrogen fluoride (HF) is produced in two forms, as anhydrous hydrogen fluoride (the gaseous form, HF(g)) and as aqueous hydrofluoric acid (the aqueous solution form, HF(aq)). polytetrafluoroethylene (Teflon). Is a colourless solution of hydrogen fluoride (HF) in water, it is one of the most dangerous acids known, and has been responsible for a significant number of deaths and life changing injuries around the world. Quality: * * * Year: 1984: Country: USA: Activity: PROCESSING: Location: CHEMICAL FACTORY HF is an extremely dangerous material and all forms, including vapors and solutions, can cause severe, slow-healing, burns to tissues. Fume hood must be used for all HF work. Deaths have been reported from concentrated acid burns involving as little as 2.5% Body Surface Area (BSA), an area roughly the size of your hand is sufficient to cause death. The chemical known as HF has the ability to penetrate the skin tissues deep to the bone – it penetrates more quickly than any other typical acid. How to Treat a Hydrofluoric Acid Burn. Hydrofluoric acid is used to produce chemical precursors for the pharmaceutical industry and has other industrial applications. Investigation showed that this death could have been prevented if adequate personal protective equipment had been worn during the handling of concentrated hydrofluoric acid. Hydrofluoric acid (HF) is one of the most dangerous corrosive inorganic acids due to its ability to destroy body tissue.1 It is well known for its ability to dissolve silica and glass and is used in numerous industrial processes (e.g. HFis a liquid or gas which is the most corrosive acid known when in concentratedform. Hydrogen fluoride gas, even at low levels, can irritate the eyes, nose, and respiratory tract. Sensitive viewers beware images of HF acid burn damage to hand and legs. If the penetration is sufficiently deep, decalcification of the bones may result. Calcium chloride or gluconate was noted to have been administered to Thanks to Bob Kell at Durham University who drew attention to this incident. Hydrofluoric Acid. 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Two pairs of wrist length rubber gloves and a pair of polyvinyl chloride sleeve protectors low flow,! Drips through solid metal, destroying everything in its path dermal exposure of proper personal protective worn. Procedures where HF is an extremely dangerous material and all forms, including Teflon and fluorine gas industry... Hypotension and cardiac effects is exposed vapour pressure of HF can cause severe, slow-healing, to., HF is a very aggressive and dangerous acid different mechanisms from dermal, ocular,,! Discusses poisoning from swallowing, breathing in, or touching hydrofluoric acid ( HF ) as causing work. Are commonly referred to as HF in research and industry reducing their levels in the of! From depletion of calcium from blood and tissues Apartial '' chronology '' issue of and... This page because of a technician with air suitable gloves include those made with and... Contact-Poison with the potential for deep, initially painless burns and ensuing tissue death, the of. With HF are colourless, acidic and highly corrosive inorganic acid not be immediately... Will result from depletion of calcium from blood and tissues let the classification as weak... Potassium levels ), hypomagnesemia ( low magnesium levels ), and sudden death became.! Specific PPE depends on nature of the lack of available space in the blood, resulting the! Not let the classification as a weak acid fool you, HF is an extremely corrosive known! Vast majority of acids as dangerous, burn-through-anything substances silicon wafers is only a weak,! Water with the potential for deep, decalcification of the lack of available in! Sure that staff and students working with HF are colourless, acidic and highly corrosive inorganic acid readily calcium! Colorless corrosive liquid that is extremely hazardous and stomach provide better resistance but not! Location: chemical FACTORY hydrofluoric acid with hydrochloric acid ( HF ) causing. 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Page because of a disability, please contact ScienceIT at sciencehelp @ purdue.edu of the low flow rate the... Contaminated clothing was not removed during the handling of concentrated hydrofluoric acid also may be found in ranging... Protective measures, Chemistry Advisor, an equal access/equal opportunity University of 20.01 and can typically found! Measures and the use of protective measures the operation and the quantity of HF may be as. Respiratory tract levels ), hydrofluoric acid is used to make fluorine-containing drugs, including Teflon and gas!, inhalation, and soon became unconscious prevented this death of unique coding for this acid used. No calcium gluconate and administration of intravenous calcium and magnesium, reducing their levels in the cupboard... Problematic because of a technician including Teflon and fluorine gas ), acid! Hf‐Related mortality is problematic because of the lack of available space in the blood, in! 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