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.
- In Chloro Alkali Industry for Brine purification viz. removal of sulphate from brine
- In the manufacture of other Barium compounds like Barium Chloride, Barium Nitrate, Barium Oxide, etc.
- In ceramic industry as a flux.
- In glass industry.
- In the manufacture of Barium Ferrites.
- In the manufacture of Television picture tubes.
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)
|Iron as Fe2O3 (Wt%)
|Matter insoluble in Hydrochloric Acid (Wt %)
|Particle Size (residue on 63 micron mesh) (Wt%)
Acid insoluble, not more than 1.0%
Iron as Fe2 O3 not more than 0.04%