Hydrogen fluoride is a colorless, corrosive gas or liquid made up of a hydrogen atom and a fluorine atom. When hydrogen fluoride is dissolved in water, it is called hydrofluoric acid.
Hydrogen fluoride is an industrial raw material used in the manufacture of products including refrigerants, gasoline and aluminum. Anhydrous hydrogen fluoride (anhydrous means a chemical contains no water) is the building-block material for the production of fluorine and fluorine containing products such as fluorochemicals, flupropolymers and surfactants.