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Definition of HF
HF Hydrofluoric Hy`dro*flu*or"ic, a. [Hydro-, 2 + fluoric.]
(Chem.)
Pertaining to, or containing, hydrogen and fluorine;
fluohydric; as, hydrofluoric acid.
Hydrofluoric acid (Chem.), a colorless, mobile, volatile
liquid, HF, very corrosive in its action, and having a
strong, pungent, suffocating odor. It is produced by the
action of sulphuric acid on fluorite, and is usually
collected as a solution in water. It attacks all
silicates, as glass or porcelain, is the agent employed in
etching glass, and is preserved only in vessels of
platinum, lead, caoutchouc, or gutta-percha.
