- In terms of production, China is the largest producer of both calcium carbonate and titanium dioxide in the world. The country has abundant reserves of both minerals and a well-developed mining and processing industry
china calcium carbonate vs titanium dioxide. China's calcium carbonate production is concentrated in regions such as Guangdong, Guangxi, and Jiangsu, while titanium dioxide production is centered in provinces such as Shandong, Henan, and Sichuan. A dense, white, opaque pigment composed of a mixture of Zinc sulfide (30%) and Barium sulfate (70%) with trace amounts of Zinc oxide. Lithopone, first produced in 1874, was called Orr's white. The mixture of the two components is so intimate that it is hard to distinguish microscopically. Lithopone is an inert, transparent pigment which is often used as a filler or as a base for lake pigments. Lithopone was widely used in house paints in the first half of the 20th century. It was also used for some artist grounds, inks and as a filler in Paper, Leather, and Linoleum. Now lithopone has mostly been replaced by Titanium dioxide.
The updated evaluation revises the outcome of EFSA’s previous assessment published in 2016, which highlighted the need for more research to fill data gaps.
It offers several advantages in various applications. Its excellent opacity and brightness make it a popular choice in the production of paints, coatings, and printing inks, providing a cost-effective alternative to titanium dioxide. Lithopone's chemical stability enhances its durability in outdoor environments, making it suitable for outdoor coatings. Additionally, its low reactivity and compatibility with other pigments contribute to its versatility. Beyond coatings, lithopone finds utility in plastics, rubber, and paper industries. Overall, its multifaceted advantages and broad applications underscore this compound's significance in diverse industrial sectors.
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