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.
Dihydrate | Anhydrous | |
Purity | 99% Minimum | 99% Minimum |
Iron (as Fe) | 30 PPM Maximum | 30 PPM Maximum |
pH (aqueous solution) | 6-8 | 7-8 |
Water Soluble Sulfides | 50 PPM Maximum | 40 PPM Maximum |
Sodium (as Na) | 0.03% Maximum | 0.03% Maximum |
Calcium (as Ca) | 0.03% Maximum | 0.03% Maximum |
Moisture | 0.5% Maximum | |
Magnesium (as Mg) | 0.005% Maximum | |
Strontium (as Sr) | 0.01% Maximum |
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