Barium carbonate (BaCO3), also known as witherite, is a chemical compound used in the Caustic Soda manufacture, ceramics and glass manufacture. Barium carbonate is made commercially from barium sulphide either by treatment with sodium carbonate at 60 to °C (soda ash method) or by passing carbon dioxide at 40 to 90 °C.
Barium Carbonate is white crystalline material, Specific gravity 4.286 GM/cm3, odourless, melting point 8110C, boiling point 14500 C, slightly soluble in water, decomposes in acid and non-flammable.
Keep in a tightly closed container, stored in a dry, ventilated area.
Usual packing is done in 25 / 50 KG polythene laminated HDPE bags.
Content of Barium Carbonate as (BaCo3) / Purity | 98.5 % min |
Reaction Efficiency (Wt%) | 85.0 % min |
Bulk Density Tapped (Kg/ltr) | 1.0 max |
Iron as Fe2O3 (Wt%) | 0.04 max |
Matter insoluble in Hydrochloric Acid (Wt %) | 1.0 max |
Moisture (Wt%) | 0.25 max |
Particle Size (residue on 63 micron mesh) (Wt%) | 0.1 max |
Physical Appearance | White Powder |
Acid insoluble, not more than 1.0%
Iron as Fe2 O3 not more than 0.04%