Hydrogen Fluoride
Introduction:
Hydrogen fluoride is a colorless corrosive gas or liquid, which is composed of a hydrogen atom and a fluorine atom. The aqueous solution of hydrogen fluoride is called hydrofluoric acid. Hydrogen and aluminum fluoride are raw materials for industrial production.
CAS:7664-39-3
Molecular formula:FH
Molecular weight: 20.01
Chemical properties: it is colorless, transparent to light yellow smoke liquid at normal temperature, with pungent smell, specific gravity of 0.98, slightly lighter than water, boiling point of 19.4 ℃, very volatile, and white smoke when placed in the air.
Purpose:
1. It is mainly used as raw material of fluorine-containing compounds, also used in the manufacture of aluminum fluoride and cryolite, semiconductor surface etching and catalyst for alkylation.
2. Used as analytical reagent and preparation of high-purity fluoride.
3. Used for etching glass, pickling metal, making inorganic fluoride products and chemical reagents.
4. Determination of silicon dioxide, manufacture of fluoride, copper detergent, metallurgical metallographic analysis, silicon compound analysis.
It is used in the manufacture of organic or inorganic fluoride, such as fluorocarbon, sodium fluoride, aluminum fluoride, uranium hexafluoride and cryolite. It is also used for pickling of stainless steel and non-ferrous metals, engraving and lettering of glass instrument scales, glassware and mirrors, polishing of glassware, treatment of frosted bulbs and general bulbs, silicon removal and purification of metal graphite emulsion, sand removal of metal castings, removal of graphite ash, and manufacturing of Semiconductors (germanium and silicon). It is also used as a catalyst for dye synthesis and other organic synthesis. It is also used in electroplating, reagent, fermentation, ceramic treatment and the manufacture of fluororesin and flame retardant.