Molecular formula: ZnSBaSo4
Nature: also known as Zinc barium white, non-toxic white powder, do not dissolve in water, and acid decomposition produce hydrogen sulfide. And hydrogen sulfide and al kali not work. Heat-resistant and can be improve weather ability, anti-algae, had excellent cover of the white.
Quality standards:
item standard
B301 B311
Ba+SO4(as ZnS)%(m/m)≥ 99 99
Zinc(as ZnS)(m/m)%≥ 28 30
Zinc Oxide %(m/m)≤ 0.6 0.3
105℃ Volatile%(m/m)≤ 0.3 0.3
Water Soluble%(m/m)≤ 0.4 0.3
Screen residues (63um mesh)%(m/m)≤ 0.1 0.1
Oil absorption g/100g≤ 14 10
Color killing(Compare with standard specimen)%≥ 105 105
Appearance:white powder
Uses: Lithopone is a white pigment composed of a mixture of barium sulfate (28 - 30%) and zinc sulfide (68 - 70%) with trace amounts of zinc oxide. It is produced by precipitation through filtering, heating and quenching works. Lithopone has mostly been replaced by titanium dioxide which is more durable, but it is much cheaper. It is used as a base for lake pigment and used as a inert pigment for paint, ink and cosmetics as well as in a large range of applications in plastic industry. It is used as a filler in paper, leather, and linoleum.
Storage :to avoid ultraviolet radiation