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Lithopone was discovered in the 1870s by DuPont. It was manufactured by Krebs Pigments and Chemical Company and other companies. The material came in different seals, which varied in the content of zinc sulfide. Gold seal and Bronze seals contain 40-50% zinc sulfide, offering more hiding power and strength. Although its popularity peaked around 1920, approximately 223,352 tons were produced in 1990. It is mainly used in paints, putty, and in plastics.

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1. 296 to 1.357 g/cm3 is obtained. The reaction solution is subjected to pressure filtration through a plate frame to obtain a cake-like lithopone powder having a water content of not more than 45%. The mixture is calcined in a dry roaster to change the crystal form of the lithopone, and then acid-washed with sulfuric acid at a temperature of 80 °C. Finally, it is washed with water, reinforced with coloring agent, pressure filtration, drying and milling.

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  • The manufacturing process begins with the careful selection of ripe peppers, which are then sun-dried to intensify their flavor and color. Once dried, the peppers undergo a meticulous grinding process, transforming them into the fine, reddish powder we know as paprika. Some manufacturers also offer different grades of paprika, ranging from mild to hot, to cater to diverse taste preferences.
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  • Another advantage of buying dried peppers in bulk is the convenience. Having a large quantity of dried peppers on hand means you can easily add them to your dishes whenever you want without having to worry about running out. This can be especially useful for busy home cooks or chefs who need to prepare dishes quickly and efficiently.
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