Dear Sir, we are in strong position to supply Lithopone with B301 and B311. Please contact with us without hesitate for more discussion on our business. Sincerely hope to cooperate with your esteemed company soon.
Herewith the introduction of it.
Lithopone B301
Formula: ZnS BaSO4
Specifications:
Total of Zinc and BaSO4 (as ZnS): 99%min
Total Zinc (as ZnS): 28-30%min
Volatile matters at 105°C: 0.3%max
Zinc oxide: 0.6%max
Soluble matters in water: 0.4%max
Screen residues (63um mesh): 0.1%max
Oil absorption (g/100g): 14%max
Color killing (Compare with standard): 105%min

Lithopone (B311)
Formula: ZnS BaSO4
Specifications:
Total of Zinc and BaSO4 (as ZnS): 99%min
Total Zinc (as ZnS): 30%min
Volatile matters at 105°C: 0.3%max
Zinc oxide: 0.3%max
Soluble matters in water: 0.3%max
Screen residues (63um mesh): 0.1%max
Oil absorption (g/100g): 10%max
Color killing (Compare with standard): 105%min
Properties: 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 Lithopone has mostly been replaced by titanium dioxide which is more durable, but it is much cheaper.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.
Packing: 25kg plastic woven bags
Regards,Connie Wang