Specification :

CAS No.: 1345-05-7
Molecular Formula: ZnSBaSO4
Molecular Weight: 81.39
Appearance: white powder
Specification:
Lithopone B301
Lithopone 28%
Ba+ SO4 ( as ZnS) ( m/ m) : 99% Min
Zinc ( as ZnS) ( m/ m) : 28% Min
Zinc Oxide ( m/ m) : 0.6% Max
105º C Volatile ( m/ m) : 0.3% Max
Water Soluble ( m/ m) : 0.4% Max
Screen residues ( 63um mesh) ( m/ m) : 0.1% Max
Oil absorption g/ 100g : 14Max
Color Killing ( Compare with standard specimen) : 105 % Min

Lithopone B311
Lithopone 30%
Ba+ SO4 ( as ZnS) ( m/ m) : 99% Min
Zinc ( as ZnS) ( m/ m) : 30% Min
Zinc Oxide ( m/ m) : 0.3 % Max
105º C Volatile ( m/ m) : 0.3% Max
Water Soluble ( m/ m) : 0.3% Max
Screen residues ( 63um mesh) ( m/ m) : 0.1 % Max
Oil absorption g/ 100g : 10Max
Color Killing ( Compare with standard specimen) : 105 % Min
Usage: 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.