Lithopone, known by its CAS number 1345-05-7, is a compound that embodies the intersection of chemistry and practical application, particularly in the field of pigments. This inorganic white pigment, a precise blend of barium sulfate (BaSO₄) and zinc sulfide (ZnS), has been instrumental in providing opacity and brightness across a spectrum of industrial products for over a century. Its consistent performance and economic viability have cemented its place in modern manufacturing, even as new materials emerge.

The production of Lithopone involves a sophisticated co-precipitation process. Typically, an aqueous solution of zinc sulfate is reacted with barium sulfide. The resulting precipitate, a mixture of BaSO₄ and ZnS, is then filtered, washed, and calcined at high temperatures. This thermal treatment is crucial for developing the pigment's characteristic whiteness and opacity. Manufacturers like NINGBO INNO PHARMCHEM CO.,LTD. meticulously control these steps to ensure consistent particle size distribution and purity, which are vital for optimal pigment performance. Understanding the 'lithopone manufacturing process' is key for businesses looking to source high-quality material. They often seek to buy Lithopone based on specific zinc sulfide content, such as 'lithopone B301' or 'lithopone B311', which denote different ratios and properties.

The chemical properties of Lithopone contribute to its wide range of applications. In paints and coatings, its low binder requirement and excellent dispersibility translate into products with superior flow and application characteristics. It also provides a degree of UV absorption, which can be beneficial in certain formulations. In plastics, it acts as a highly effective opacifier and contributes to the overall aesthetic and durability of the final product. The inherent properties of the zinc sulfide component also offer fungicidal and algicidal effects, which are advantageous in exterior paints and coatings, helping to preserve the integrity of the film. For those investigating 'inorganic white pigment uses' beyond traditional paints, the applications in rubber, inks, and even ceramics showcase Lithopone's versatility.

While Lithopone has historically been known to darken under certain light conditions, advancements in manufacturing have led to stabilized grades that exhibit much-improved lightfastness. These developments, often achieved through trace element doping or surface treatments, ensure that Lithopone can meet the demanding performance requirements of modern industries. When considering procurement, partnering with reputable suppliers such as NINGBO INNO PHARMCHEM CO.,LTD. is paramount to ensure you receive pigments that adhere to the latest quality standards. Exploring 'lithopone chemical data' will provide a deeper understanding of its technical specifications and suitability for your specific needs.