cas 1345-05-7

In conclusion, pigment lithopone plays a crucial role in a wide range of industries as a versatile white pigment with excellent properties. Factories around the world are dedicated to producing high-quality lithopone pigment to meet the demands of manufacturers for paints, coatings, and plastics. By adhering to strict quality control measures and investing in advanced manufacturing processes, these factories are able to provide a consistent and reliable supply of lithopone pigment to support the growth of various industries.

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Although barium sulfate is almost completely inert, zinc sulfide degrades upon exposure to UV light, leading to darkening of the pigment. The severity of this UV reaction is dependent on a combination of two factors; how much zinc sulfide makes up the pigments formulation, and its total accumulated UV exposure. Depending on these factors the pigment itself can vary in shade over time, ranging from pure white all the way to grey or even black. To suppress this effect, a dopant may be used, such as a small amount of cobalt salts, which would be added to the formulation. This process creates cobalt-doped zinc sulfide. The cobalt salts help to stabilize zinc sulfide so it will not have as severe a reaction to UV exposure.

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