lithopone for coating manufacturers

When buying wholesale titanium dioxide for use in food products, it is important to ensure that the product meets certain safety standards. The Food and Drug Administration (FDA) has approved the use of titanium dioxide as a food additive, but it must meet specific purity standards. It is important to purchase titanium dioxide from a reputable supplier that can provide documentation demonstrating that the product meets these standards.

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The manufacturing process of lithopone involves several steps, including sulfide precipitation, grinding, classification, and packaging. During the sulfide precipitation stage, zinc sulfide and barium sulfate are reacted in an aqueous solution under controlled conditions to form a precipitate of lithopone. The precipitate is then washed, dried, and ground to the desired particle size distribution. Finally, the ground pigment is classified to remove any oversized or undersized particles and packaged for storage and transportation.

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