wholesale jual titanium dioxide

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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Lithopone, a blend of zinc sulfide and barium sulfate, is prized for its opaque nature and ability to confer high brilliance and stability to colors. It has traditionally been used in a wide array of applications, from paints and plastics to rubber and printing inks. However, with the advent of new environmental regulations and the push for safer, non-toxic materials, there has been a renewed interest in lithopone production techniques that minimize hazardous waste and maximize efficiency.

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{随机栏目} 2025-08-16 06:35 1890
  • Lithopone was discovered in the 1870s by DuPont. It was manufactured by Krebs Pigments and Chemical Company and other companies.[2] 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.[3] Although its popularity peaked around 1920, approximately 223,352 tons were produced in 1990. It is mainly used in paints, putty, and in plastics.[1]

    {随机栏目} 2025-08-16 06:23 757