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Hydrogen fluoride (fluorane) is an inorganic compound with chemical formula H F. It is a very poisonous, colorless gas or liquid that dissolves in water to yield hydrofluoric acid .
Symptoms of HF exposure include irritation of the eyes, skin, nose, and throat; eye and skin burns; and bone damage. [3] Complications may occur due to fluoride toxicity. [1] Once absorbed into blood through the skin, [1] it reacts with blood calcium and may cause cardiac arrest.
Many gases have toxic properties, which are often assessed using the LC 50 (median lethal concentration) measure. In the United States, many of these gases have been assigned an NFPA 704 health rating of 4 (may be fatal) or 3 (may cause serious or permanent injury), and/or exposure limits (TLV, TWA/PEL, STEL, or REL) determined by the ACGIH professional association.
The EPA and Vistra Energy, which owns the plant, have air quality monitoring equipment on site, which has not picked up reportable levels of hydrogen fluoride gas, according to North County Fire ...
Referring to a common salt of fluoride, sodium fluoride (NaF), the lethal dose for most adult humans is estimated at 5 to 10 g (which is equivalent to 32 to 64 mg elemental fluoride/kg body weight). [ 2 ] [ 3 ] [ 4 ] Ingestion of fluoride can produce gastrointestinal discomfort at doses at least 15 to 20 times lower (0.2–0.3 mg/kg or 10 to 15 ...
New research suggests that exposure to fluoride during pregnancy could be linked to behavioral issues in children.
Hydrofluoric acid is a solution of hydrogen fluoride (HF) in water.Solutions of HF are colorless, acidic and highly corrosive.A common concentration is 49% (48-52%) but there are also stronger solutions (e.g. 70%) and pure HF has a boiling point near room temperature.
When mixed, they release poisonous chlorine gas. Here are the health risks and what to do if you are exposed. Bleach and vinegar are two common household cleaners. When mixed, they release ...