Specification:

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(B302)
ZnS: 28%min
ZnO: 0.3%max
Volatile Matter (at 105C): 0.3%max
Matter soluble in water: 0.4%max
Residue on sieve 63um: 0.1%max
Oil absorption value(100g): 11

Lithopone (B311)
Formula: ZnS BaSO4
Specifications:
Total of Zinc and BaSO4 (as ZnS): 99%min
Total Zinc (as ZnS): 30%min
Volatile matters at 105C: 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

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