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

Properties: 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.

 

Applications: 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 Lithopone has mostly been replaced by titanium dioxide which is more durable, but it is much cheaper.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.