Major Hazards Extremely corrosive liquid and vapor that can cause severe injury via skin and eye contact, inhalation, or ingestion. Toxicity Anhydrous hydrogen fluoride and hydrofluoric acid are extremely corrosive to all tissues of the body.
Skin contact results in painful deep-seated burns that are slow to heal.
Hydrofluoric acid and HF vapor can cause severe burns to the eyes, which may lead to permanent damage and blindness. At 10 to 15 ppm, HF vapor is irritating to the eyes, skin, and respiratory tract. Exposure to higher concentrations can result in serious damage to the lungs, and fatal pulmonary edema may develop after a delay of several hours. Ingestion of HF can produce severe injury to the mouth, throat, and gastrointestinal tract and may be fatal. HF has not been reported to be a human carcinogen.