Barium Chloride crystal powder

Barium chloride is an inorganic compound with the formula BaCl₂. 

It is one of the most common water-soluble salts of barium. 

Like most other barium salts, it is white, toxic, and imparts a yellow-green coloration to a flame. 

It is also hygroscopic, converting first to the dihydrate BaCl₂(H₂O)₂.

Formula: BaCl2

Molar mass: 208.23 g/mol

Melting point: 1,764°F (962°C)

Boiling point: 2,840°F (1,560°C)

Density: 3.86 g/cm³

It is commonly used as a test for sulfate ion. In industry, Barium Chloride is mainly used in the purification of brine solution in caustic chlorine plants and also in the manufacture of heat treatment salts, case hardening of steel, in the manufacture of pigments, and in the manufacture of other barium salts.