White powder, is a mixture of zinc sulfide and barium sulfate. White crystalline powder. For a mixture of zinc sulfide and barium sulfate, zinc sulfide, the more the stronger the covering power, the higher the quality also. 4.136 ~ 4.34 g/cm3 density, insoluble in water. In the acid to produce hydrogen sulfide gas, hydrogen sulfide and alkali solution doesn't work. By the ultraviolet ray in sunlight 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 by ZnSO4 and BaS two components, the mixture of the two components in the coating is not a state of separation. BaSO4 have diamond crystal structure ZnS has administered the cube or hexagon crystal structure