Name of article: Lithopone
Formula: ZnS+BaSO4
CAS No. : 134505-7
Specification:
Lithopone is a white powder, a mixture of barium sulfate and zinc sulfate with trace amounts of zinc oxide. Barium solution by zinc and react to precipitate, filtration, drying and calcinations, after crushing, pour water to the red-hot cold, After covering titanium dioxide .No acid.
Useful:
It's can be applied to all the paints, coating, thermoplastics thermosetting plastic and papers. Yet it's can be used for the preparation of a variety of light-colored paint. In addition, it is applied in the area of rubber, printing ink ,varnished cloth, tarpaulin, paper ,enamel, leather plastic and so on.
Lithopone	B301	B311
Total of ZnS and BaSO4
%(m/m)	99
The content of Znic
(standard on ZnS) %(m/m)	28	30
The content of ZnO
%(m/m)	0.6-1	0.3-0.5
PH value	6.8-7	6.8-7
Particle size
%(m/m)	99.9	99.9
Volatile matter at 105
%(m/m)	0.3MAX	0.3MAX
Residue on sieve 63um 
%(m/m)	0.1MAX	0.1MAX
Oil absorption value
(g/100g)	14	10