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Molecular formula: ZnSBaSO4
CAS Number: 1345-05-7
Specification:
Item----------------------------------------------------------- B301----------B311
Ba+SO4 (as ZnS)%(m/m)----------------------------------99min--------99min
Zinc (as ZnS) (m/m)%--------------------------------------28min----------30min
Zinc Oxide %(m/m) ----------------------------------------0.6max---------0.3max
105degree Volatile%(m/m)-------------------------------------0.3max---------0.3max
Water Soluble%(m/m) --------------------------------------0.4max---------0.3max
Screen residues (63um mesh) %(m/m) -------------------0.1max---------0.1max
Oil absorption g/100g ---------------------------------------14max----------10max
Color Killing (Compare with standard specimen) %----105min--------105min
Packing: In 25kg polyethylene film bag with outer polypropylene woven bag. Can be palletized.
Property: White powder
Usage: 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 Lithopone has mostly been replaced by titanium dioxide which is more durable, but it is much cheaper. It is 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.