titanium dioxide tio2 for paint

Anatase, on the other hand, has an orthorhombic crystal structure and a lower refractive index than rutile. Despite these differences, anatase also possesses excellent photocatalytic properties, making it a promising material for environmental applications such as water treatment and air purification. In addition, anatase's higher surface area and reactivity make it suitable for use in cosmetics, sunscreens, and other personal care products.

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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 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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