Lithopone Description

A dense, white, blurred colorant composed of a admixture of zinc sulfide (30%) and barium sulfate (70%) with trace amounts of zinc oxide. Lithopone, aboriginal produced in 1874, was alleged Orr's white. The admixture of the two apparatus is so affectionate that it is harder to analyze microscopically. Lithopone is an inert, cellophane colorant which is generally acclimated as a accompaniment or as a abject for basin pigments. Lithopone was broadly acclimated in abode paints in the aboriginal bisected of the 20th century. It was aswell acclimated for some artisan grounds, inks and as a accompaniment in paper, leather, and linoleum. Now lithopone has mostly been replaced by titanium dioxide.
Lithopone, ablaze white colorant acclimated in paints, inks, leather, paper, linoleum, and face powder. Lithopone was developed in the 1870s as a acting or supplement for advance carbonate (white lead), to affected its drawbacks of toxicity, poor weathering, and concealment in atmospheres that accommodate sulfur compounds. Lithopone is an baffling admixture of barium sulfate and zinc sulfide that precipitates aloft bond solutions of barium sulfide and zinc sulfate. The accelerate is recovered by filtration, again calcined (roasted) at temperatures aloft 600° C (1,112° F). Although lithopone has been replaced in abounding applications by titanium dioxide, alien afterwards World War I, it is still broadly acclimated in a amount of products, such as baptize paints.