- barium carbonate
: a water-insoluble toxic salt BaCO3 occurring in nature as witherite, made artificially by precipitation as a white powder, and used chiefly in making other barium compounds, in removing sulfates from aqueous solutions, in ceramics as a flux, and in optical glass
* * *Chem.a white, poisonous, water-insoluble powder, BaCO3, used chiefly in the manufacture of rodenticides, paints, and dyes.[1870-75]
* * *barium carbonate,a poisonous compound occurring as a mineral, witherite, or prepared synthetically. It is used in the manufacture of optical glass, paints, enamels, and dyes, and as a rat poison. Formula: BaCO3
Useful english dictionary. 2012.