Chrome oxide technical (pigment)
Appearance:
Fine-dispersed powder of green colour, insoluble in water, spirit, acetone.
Hardly soluble in alkalis and acids. Having hardness of corundum, scratches
quartz. As a dye has high covering effect.
Empirical formula: Cr2O3.
Used in:
·
Paint
& varnish industry for manufacturing enamels and paints;
·
Buidling
industry as a filling pigment for building materials;
·
Metallurgical
industry for producing Cr metal and abrasive materials.
Also known as Chromium (III) Oxide, it is used
as an inorganic pigment in paints, architectural coatings, plastics, roofing
tiles and ceramic tiles. Chrome Oxide Green is also used in heavy-duty
applications in the construction of high temperature and abrasion-resistant
refractory brick for glass and fiberglass. High purity grade chrome oxide is
used in the manufacturing of chromium metal.
|
S.No. |
Description |
Specification |
|
1 |
Physical |
Powder |
|
2 |
Appearance |
Light to dark green |
|
3 |
Odour |
Odourless |
|
4 |
pH |
7.5@0.5% solution |
|
5 |
Vapor |
Not applicable |
|
6 |
Vapor |
Not applicable |
|
7 |
Evaporation |
Not available |
|
8 |
Boiling |
4000 deg C |
|
9 |
Freezing/Melting Point |
2435 deg C |
|
10 |
Decomposition Temp |
Not available |
|
11 |
Solubility |
Insoluble in water, |
|
12 |
Specific |
5.21 (water=1) |
|
13 |
Molecular Weight |
151.9902 |
- As
an ingredient in the refractories and brake linings
- As
a raw material for the manufacture of chromium metal
- As
a raw material for production of mixed metal oxides in the ceramic
industry
- As green pigment for coloring
building materials, plastics and also as a refractory
