Barium Carbonate Powder


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.

Typical Properties

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) 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

Impurity Profile

Acid insoluble, not more than 1.0%

Iron as Fe2 O3 not more than 0.04%