tio2 used in paint factories

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Firstly, calcium carbonate factories can be categorized into two primary types natural and synthetic. Natural calcium carbonate factories extract limestone, marble, or chalk, all of which are rich in calcium carbonate, from the earth's crust. These materials are then processed through grinding and purification techniques to produce calcium carbonate powder. On the other hand, synthetic calcium carbonate factories create the compound through a chemical reaction between calcium oxide (quicklime) and carbon dioxide. This method is often used when a purer form of calcium carbonate is required.

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White crystalline powder. It is a mixture of zinc sulfide and barium sulfate. The more zinc sulfide it contains, the stronger the hiding power and the higher the quality. Density 4.136~4.34 g/cm3, insoluble in water. It easily decomposes when exposed to acid to produce hydrogen sulfide gas, but does not work when exposed to hydrogen sulfide and alkaline solutions. It turns into light gray after being exposed to ultraviolet rays in the sun for 6 to 7 hours, but it still returns to its original color when placed in a dark place. It is easy to oxidize in the air and will agglomerate and deteriorate when exposed to moisture.

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