Conclusion:

Lithopone is produced by coprecipitation of barium sulfate and zinc sulfide. Most commonly coprecipitation is effected by combining equimolar amounts of zinc sulfate and barium sulfide:

In terms of sustainability, the use of rutile titanium dioxide in coatings aligns with the global push towards eco-friendliness. The product is non-toxic and, when combined with solvent-free formulations, can contribute to reduced volatile organic compound (VOC) emissions, making it a safer option for both the environment and those applying the coatings.