wholesale anatase nano tio2

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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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The production process of TiO2 pigments is an intricate one, requiring precise control over chemical reactions and physical properties. It begins with the extraction of titanium ore, primarily ilmenite or rutile, which undergoes a series of processes including crushing, leaching, and smelting to produce titanium dioxide. This raw form is then processed further to create the two main types of TiO2 pigments rutile and anatase. Each type offers different optical and physical properties, catering to specific industrial needs.

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