Pigment Intermediates are complex chemicals that are
designed to add special properties, when small quantities of such are
included while formulating specific products. Pigment intermediates find
a vast application in the color-producing industries, like textiles,
inks, paper, and coatings and a host of others.
Some of the common types of Pigment Intermediates and their properties
are given here.
| Appearance |
Primary melting point |
Purity % |
1-Naphthol content % |
| Grey white slice or even powder. |
around 120 degree C for the first grade, 119.5 degree C for
second grade. |
99.1% for the first grade, and around 98.6 for the second
grade. |
0.20 for the first grade, while 0.30 for second grade. |
Physical properties of Tobias acid
- White crystalization
- Slight solubility in cold water
- Soluble in hot water
- but sparsely soluble in ethanol and ether.
Uses: Primary use as azo dyestuff and as azo pigment
intermediates.
| Purity |
Min of 97.5% |
| Appearance |
Cream or a slightly red powder |
| Primary melting point (of dried product) |
min. 246oC |
| Strength |
(+) 3% to standard |
| Matter insoluble in lye |
Maximum of 0.4% |
2-Naphthol