Zinc Sulphide
|
|
Zinc Sulphide
|
|
|
Color Index
|
Pigment White 7 CI 77975
|
|
|
Formula
|
ZnS
|
Structure
Zinc sulphide is ZnS, nH2O where n=0 or 1. It can contain traces of copper.
ZnO crystallises in an hexagonal system.
Properties
This pigment produces a good, strong white, good opacity and a high degree of chemical
inertness. However, it chalks badly.
|
Properties of zinc sulphide
|
|
Property
|
Zinc Sulphide
|
|
Refractive Index
|
2.37
|
|
Density
|
4
|
|
Oil Absorption
|
11-13
|
|
Heat Stability & Light Fastness
|
very good
|
Uses
Zinc sulphide is not very used. It can be used in association with other white pigments
in coil coatings.
