Leuco Sulphur Blue 2
- CAS NO.：12262-24-7
- Molecular Weight: 0
What is Leuco Sulphur Blue 2?
Preparation
N-[p-(p-hydroxyanilino)phenyl]anthranilic acid?in Sodium polysulfide solution in return 105 ~ 106 ° C heating 65 hours, then add salt from Sodium sulfide solution precipitation dye crude products, in the cold dilute Sodium hydroxide solution air oxidation. This Indophenol?is by N-Phenylanthranilic acid?and?4-Nitrosophenol?condensation, product with Sodium hydrosulfide and reduction.
Properties and Applications
blue.
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Fulling | Persperation Fastness | Soaping | |
| Moderate | Severe | ||||||
| ISO | 3 | 4 | 4-5 | 3 | 3 | 2-3 | |
Safety information for Leuco Sulphur Blue 2
New Products
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