lithopone power manufacturer

Having thus described the origin and uses of the pigment, we now come to the question, what is lithopone? It is, in short, a chemical compound usually consisting of 30.5 per cent zinc sulphide, 1.5 per cent zinc oxide and 68 per cent barium sulphate, but these proportions vary slightly in the different makes. Lithopone of this composition is sold as the highest grade, either as red seal or green seal, as it best suits the idea of the manufacturer. Many manufacturers, especially in Europe, sell and also export other brands under other seals, containing 24, 20, 18 and as little as 12 per cent of zinc sulphide with very small percentages of zinc oxide, the balance being usually barium sulphate, but sometimes certain portions of China clay or gypsum (calcium sulphate) or whiting (calcium carbonate). Such brands are not a chemical compound, but mechanical mixtures of the chemically compounded lithopone and the admixtures referred to.

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  • Chinese importers are not just passive recipients of foreign products; they often engage in complex negotiations to secure favorable terms and ensure a steady supply chain. Their influence extends beyond transactional dealings, as they frequently collaborate with producers on research and development initiatives aimed at improving product quality and performance Their influence extends beyond transactional dealings, as they frequently collaborate with producers on research and development initiatives aimed at improving product quality and performance Their influence extends beyond transactional dealings, as they frequently collaborate with producers on research and development initiatives aimed at improving product quality and performance Their influence extends beyond transactional dealings, as they frequently collaborate with producers on research and development initiatives aimed at improving product quality and performancechina titanium dioxide importers. This collaborative approach not only benefits the importers but also helps manufacturers refine their offerings, making them more competitive in the global marketplace.
  • Titanium dioxide (TiO2). Titanium dioxide is the most common white pigment used today. As a pigment, titanium dioxide is unique because it combines both high colouring and high opacifying capacity. This is mainly due to its high refractive index (2.7). Furthermore, titanium dioxide is an excellent UV absorber (it is used in sun protective creams). Some typical properties are: density 3.3-4.25 g/cm3; pH of water suspension 3.5-10.5; particle size 8–300 nm; oil absorption 10–45 g/100 g; specific surface area 7–160 m2/g. Most titanium dioxide is produced from the rutile (TiO2) or ilmenite (titanate of ferrous iron). Titanium dioxide can be obtained using different processes.

  • Physical and Chemical Properties