Naphthol
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Dyes & Textile Industry Chemicals
92-77-3
| CAS No. | 92-77-3 |
| Appearance | Milky white, yellow (green) or brown powder |
In 25kg paper bags
| Naphthol AS | |
| CAS No. | 92-77-3 |
| Appearance | Grey white powder |
| Content | ≥99% |
| Strength | 100±5 |
| Melting Point | 247℃ |
| 2,3Acid Content | ≤0.09% |
| Naphthol AS-BO | |
| CAS No. | 132-68-3 |
| Appearance | Grey white powder |
| Content | ≥99% |
| Strength | 100±5 |
| Melting Point | 217℃ |
| 2,3Acid Content | ≤0.1% |
| Naphthol AS-G | |
| CAS No. | 91-96-3 |
| Appearance | Grey white powder |
| Content | ≥98% |
| Strength | / |
| Melting Point | 204~205℃ |
| 2,3Acid Content | / |
| Naphthol AS-E | |
| CAS No. | 92-78-4 |
| Appearance | Grey white powder |
| Content | ≥99% |
| Strength | 100+5 |
| Melting Point | 257℃ |
| 2,3Acid Content | ≤0.19% |
| Naphthol AS-BS | |
| CAS No. | 135-65-9 |
| Appearance | Grey white powder |
| Content | ≥99% |
| Strength | 100+5 |
| Melting Point | 242℃ |
| 2,3Acid Content | ≤0.09% |
Black sulfide can protect the color and quality of the material surface. In some high temperature environment, the color will not change due to the intensity of light, and play a waterproof, corrosion and oxidation resistance
By adding a certain proportion of sulfur black to the color preparation, the antioxidant properties of the material can be improved, giving it a longer service life.
Sulfur black can be used as an important colorant and filler in inks, pigments and paints, adding depth and brightness to the pigments and improving the firmness and stability of the inks, pigments and paints.
