Which compounds make up lithopone?

Lithopone is a pigment used primarily in paints and coatings, valued for its brightness and opacity. It is composed of two main substances: zinc sulfide (ZnS) and barium sulfate (BaSO4).

Zinc sulfide provides the white color and reflective properties, while barium sulfate acts as a filler and enhances the pigment's durability and stability. The combination of these two compounds results in a product that is effective for use in various applications requiring white pigmentation.

The presence of these specific compounds in lithopone is crucial, as other combinations listed do not provide the same properties or functionality. For instance, options including lead oxide or calcium carbonate do not align with the traditional formulation of lithopone, which is specifically recognized for the inclusion of ZnS and BaSO4. This unique combination gives lithopone its desirable characteristics, differentiating it from other white pigments on the market.