what is lithopone

The global lithopone pigment market is driven by the growth of end-use industries, particularly construction and automotive, where coatings and plastics play a significant role. Manufacturers are constantly innovating to improve the quality of lithopone pigments, focusing on enhancing their whiteness, opacity, and weather resistance. Environmental concerns have also led to the development of eco-friendly production methods, reducing waste and minimizing the environmental footprint.

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{随机栏目} 2025-08-14 06:13 2861
  • The raw material used in this method is FeSO4. In order to maintain the Fe3 + concentration in the reaction medium in a specific range, reducing agent iron sheet is added in the reaction process. Iron yellow crystal seed was added and air was introduced to synthesize iron yellow under certain pH conditions. The method mainly includes two steps: (1) firstly, FeSO4 · 7H2O is used as raw material, NaOH or NH3 · H2O is used as precipitant or pH regulator, and air is used as oxidant to prepare crystal seed; (2) Iron yellow is produced by two-step oxidation with crystal seed, FeSO4, iron sheet and air.

    {随机栏目} 2025-08-14 06:07 2936