Lithopone
1. Lithopone
2. 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 Lithopone has mostly been replaced by titanium dioxide which is more durable, but it is much cheaper.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