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Titanium dioxide (TiO2) is a widely used white pigment with excellent properties such as high brightness, weather resistance, and non-toxicity. It is commonly found in paints, plastics, and coatings due to its ability to provide a pure white color while also offering protection against ultraviolet radiation. However, the production of TiO2 can be a complex and energy-intensive process. One of the key steps in this process is the precipitation of titanium dioxide from a solution. In this article, we will delve into the various aspects of titanium dioxide precipitation and provide a comprehensive guide for understanding this critical process.

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Titanium dioxide, commonly known as TiO2, is a versatile compound with a wide range of applications, from paints and coatings to food coloring and sunscreens. The production of this white pigment has undergone significant changes over the years, leading to the establishment of numerous TiO2 factories around the world. These factories play a crucial role in meeting the growing demand for titanium dioxide while addressing environmental concerns associated with its production.

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The properties of lithopone are very suitable for use in the production of coatings. Because the ingredients of lithopone are zinc sulfide and barium sulfate, and the more zinc sulfide content, the stronger its covering power. This indicates a paint product with strong white covering power. It is different from water in that it reacts with acid but does not react with alkali. It has a wide range of uses. Because its structural properties are similar to titanium dioxide and its price is relatively cheap, it can also be used as a substitute for some titanium dioxide. Lithopone can be used for coloring paints, inks, pigments, rubber, paper, leather, enamel, etc.

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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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