high-quality lithopone supplier

China has established itself as a global hub for the production of lithopone, with a significant number of manufacturers catering to various industries. Among these, several companies have emerged as leaders in the production of lithopone B311, a widely used pigment in the coatings, plastics, and rubber industries. This article aims to provide an overview of the top Chinese manufacturers of lithopone B311, their key features, production capabilities, and market presence.

...
high-quality lithopone supplier2025-08-14 06:58
1385

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.

...
high-quality lithopone supplier2025-08-14 06:44
1731

Another advantage of using titanium dioxide in plastic manufacturing is its UV-blocking capabilities. The pigment absorbs ultraviolet radiation, which helps to prevent the degradation of the plastic material caused by exposure to sunlight. This not only prolongs the lifespan of the product but also protects it from fading and discoloration over time This not only prolongs the lifespan of the product but also protects it from fading and discoloration over time This not only prolongs the lifespan of the product but also protects it from fading and discoloration over time This not only prolongs the lifespan of the product but also protects it from fading and discoloration over timetitanium dioxide for plastic manufacturer.

...
high-quality lithopone supplier2025-08-14 04:44
291

 2) Purification: Add ammonium persulfate to the final immersion solution for one-time oxidation and iron removal, and add activated carbon to adsorb arsenic and iron co-precipitation to achieve the purpose of removing arsenic. Add the polyacrylamide coagulant to separate and filter before separation. The sulfide solution is added to the solution to remove sulfur, and the separated filtrate obtained by the separation is replaced with zinc powder to remove the remaining impurities to obtain a zinc sulfate ammonia complex liquid, which is used in the next step;

...
high-quality lithopone supplier2025-08-14 04:22
915