Lithopone

Lithopone1. Lithopone2. Molecular formula: ZnSBaSO4 3. CAS Number: 1345-05-7 Specification:

Item	B301	B311
Total content (as ZnS add ZnSO 4 )	99% Min	99% Min
Total Zinc (as ZnS)	28% Min	30% Min
Zinc Oxide	0.8% Max	0.3% Max
Volatile elements 105	0.3% Max	0.3% Max
Insoluble matter in water	0.5% Max	0.4% Max
Residue of mash (wm)	0.1% Max	0.15% Max
Colour	Near sample	Near sample
PH value	NEUTRAL	NEUTRAL
Oil absorption g/100	14 Max	10 Max
Tinting (contrast to the sample)	100% Min	100% Min

Property: White powder, lithopone is a white pigment composed of a mixture of barium sulfate (68 - 70 %) and zinc sulfide (28 - 30%) 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 Lithopone has mostly been replaced by titanium dioxide which is more durable, but it is much cheaper.Application:It is used as a base for lake pigment and used as a inert pigment for paint, ink,cosmetics and plastic industry. It is used as a filler in paper, leather, and linoleum.Packing: 25kg PP Bag