C.I. Sulphur Orange 4 (8CI)
- CAS NO.：1326-74-5
- Empirical Formula: Unspecified
- Molecular Weight: 0
What is C.I. Sulphur Orange 4 (8CI)?
Preparation
N-(4-(4-acetamido-3-nitrophenyl)-2-nitrophenyl)acetamide and sulfur or more Sodium sulfide in 200 ~ 250 ℃ calcination. Note: use N-(4-methyl-3-nitrophenyl)acetamide or Benzene-1,4-diamine of acetyl derivatives to cure, and in 200 ~ 300 ℃ under the condition of same roasting, and it can get a little nature of the same color (GP 82748).
Properties and Applications
orange. Soluble in water for brown; In the sodium sulfide solution for yellow brown; In concentrated sulfuric acid to red light brown, dilution after red light brown, precipitation.
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Fulling | Persperation Fastness | Soaping | |
| Moderate | Severe | ||||||
| ISO | 4 | 4-5 | 4-5 | 4-5 | 5 | 3-4 | |
Safety information for C.I. Sulphur Orange 4 (8CI)
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