Lithopone is a kind of white powder, mixture of zinc sulfide and barium sulfate, specific gravity 4.136-4.39, insoluble in water; not react with H2S and alkaline solution; while meeting with acid, easily to decompose to produce sulfureted hydrogen gas. It is easy to be oxidized in the air. It is stronger in whiteness and covering power. The more zinc sulfide it contains, the stronger covering power and the higher the quality.
Inorganic white pigment. Widely used as white pigment in
polyolefins, vinyl ester resin, ABS resin, polystyrene, polycarbonate, nylon and polyformaldehyde, as well as plastics, paint and printing ink. And it is also used to color rubber articles, varnished cambric, leather, paper and enamel, etc.