Answer :
The aqueous solution neutralisation of sodium hydroxide and hydrofluoric acid.
HF(aq)+OH−(aq)→H2O(l)+F−(aq)
A mixture of hydrogen fluoride (HF) and water is hydrofluoric acid. Acidic, colourless, and extremely corrosive describe HF solutions. It is employed to create the majority of fluorine-containing chemicals, including PTFE and the widely used antidepressant drug fluoxetine (Prozac) (Teflon). It produces the elemental fluorine. Glass and silicon wafers are frequently subjected to its utilisation. Organofluorine chemistry is the main use of hydrofluoric acid. Teflon, fluoropolymers, fluorocarbons, and refrigerants like freon are just a few of the many organofluorine compounds that are created utilising HF as the fluorine source. Fluorine is a component of many medicines. Hydrofluoric acid is used to create the majority of inorganic fluoride compounds with significant volume. Cryolite, AlF3, and Na3AlF6 are the two most important substances. The fabrication of metallic materials uses a molten mixture of these solids as a high-temperature solvent.
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