Barium Carbonate is used in the production of television glass, pressed glass, glazes, enamel frits, ceramics, and electroceramics; Specification of BaCO3 powder Description Unit Acceptance Criteria Specification Purity Wt% Min 98.0 Reaction efficiency Wt% Min 85.0 Bulk Density (Tapped) kg/lit Max 1.0 Iron as Fe2O3 Wt% Max 0.04 Matter insoluble in Hydrochloric acid Wt% Max 1.0 Moisture Wt% Max 0.25 Total sulphur as SO3 Wt% Max 0.6 Particle size (residue on 63 microns mesh) Wt% Max 0.1 Physical Appearance White Powder