titanium dioxide precipitate supplier

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 Lithopone B301, Lithopone B311 powder itself may vary in shade over time, ranging from pure white all the way to grey or even black. To suppress this effect, a dopant might be used, like 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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  • O'Brien, W.J. (1915). The Study of Lithopone. J. Phys. Chem. 19 (2): 113–144. doi:10.1021/j150155a002..
  • In conclusion, China's domination of the global TiO2 industry is a reflection of the country's strong industrial base, abundant raw materials, and commitment to environmental protection. While this has created challenges for some players in the market, it has also opened up new avenues for cooperation and innovation. As the demand for TiO2 continues to grow, China's role in meeting this demand will remain crucial, shaping the future of the global TiO2 industry.
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  • Lithopone 30% CAS No. 1345-05-7