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2025-08-14 09:00
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Manufacturers get titanium dioxide from minerals called brookite, rutile, and anatase. It's processed into a powder and refined to meet strict safety guidelines.
This precipitate is not suitable for a pigment until it is filtered, dried, crushed, heated to a high temperature, and quenched in cold water. The second heating in a muffle furnace at 725 C produces crystals of the right optical size.
Zinc Oxide