Hydrogen fluoride mixes readily with water forming hydrofluoric acid. For all practical purposes, they are considered the same chemical. Hydrogen fluoride/hydrofluoric acid is used extensively in the extraction, processing, and refining of metals, rock, brick, and oil. It is an intermediate for many chemical reactions and syntheses.
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Hydrogen fluoride is produced by the action of sulfuric acid on pure grades of the mineral fluorite: CaF 2 + H 2 SO 4 → 2 HF + CaSO 4 The reaction is endothermic. About 20% of manufactured HF is a byproduct of fertilizer production, which generates hexafluorosilicic acid.
Hydrogen fluoride/hydrofluoric acid is used extensively in the extraction, processing, and refining of metals, rock, brick, and oil. It is an intermediate for many chemical reactions and syntheses. It is used to remove and inhibit rust, and to etch, polish, and frost glass. It is used in the manufacture of silicon semiconductor chips.
Hydrogen fluoride is a gas which when in solution with water forms hydrofluoric acid, HF. Although a weak acid, i.e., it is not strongly disassociated, is used to etch glass. Like it’s sister, HCl acid, it reacts with water with the release of heat and can cause burns on the skin.
HF is listed in the World's largest and most authoritative dictionary database of abbreviations and acronyms. HF - What does HF stand for? The Free Dictionary.
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