- a colorless corrosive gas, HF, the anhydride of hydrofluoric acid, used chiefly as a catalyst and in the fluorination of hydrocarbons.
Origin of hydrogen fluoride
First recorded in 1905–10
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- a colourless poisonous corrosive gas or liquid made by reaction between calcium fluoride and sulphuric acid: used as a fluorinating agent and catalyst. Formula: HF
- an aqueous solution of hydrogen fluoride; hydrofluoric acid
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
- A corrosive compound that exists as a colorless, fuming liquid or a highly soluble gas. Hydrogen fluoride is used as a reagent, catalyst, and fluorinating agent, in the refining of uranium, and in making many fluorine compounds. An aqueous solution of hydrogen fluoride is called hydrofluoric acid. Chemical formula: HF.
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