A brief introduction of lithopone

Lithopone is a white crystalline powder, is a mixture of zinc sulfide and barium sulfate, the more containing zinc sulfide, the stronger the covering power, the higher the quality also. Lithopone insoluble in water, easy to decompose in acid to produce hydrogen sulfide gas, hydrogen sulfide and alkali solution doesn't work. By the sun's ultraviolet rays 6 ~ 7 h into light gray, was back in the dark color. After the easy oxidation in air, and be affected with damp be affected with damp agglomerate metamorphism. Its whiteness, strong hiding power than zinc oxide, refractive index and opaque force than zinc oxide and lead oxide, but inferior to the titanium dioxide.

Lithopone is often used in paint, printing ink, rubber and other inorganic white coloring pigment, widely used in polyolefin, vinyl resin, ABS resin, polystyrene, polycarbonate, nylon and polyformaldehyde plastics and paint, ink, white pigment. In the polyurethane and amino resin effect is poorer, less applicable in fluorine plastic. Also used for rubber products, paper, cloth, cloth, leather, watercolor coloring, paper, enamel, etc. Used as a binder in buld production.

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