Sulphur Blue 7 -Leuco
Sulphur Blue 7 -Leuco Basic information
- Product Name:
- Sulphur Blue 7 -Leuco
- Synonyms:
-
- Sulphur Blue 7 -Leuco
- Phenol, 4-[(4-amino-3-methylphenyl)amino]-, reaction products with sodium sulfide (Na2(Sx)), leuco derivs.
- Leuco Sulphur Blue 7
- Phenol,4-[(4-amino-3-methylphenyl)amino]-, reaction products with sodium sulfide, leuco derivative
- Leuco sulfur blue 7 (C.I. 53440)
- C.I. Leuco Sulfur Blue 7
- C.I.Leuco Sulphur Blue 7
- Sodyesul Liquid Blue 8RCF
- CAS:
- 69900-21-6
- MW:
- 0
- EINECS:
- 274-211-3
- Mol File:
- Mol File
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Sulphur Blue 7 -Leuco Usage And Synthesis
Preparation
4-(4-Amino-3-methylphenylamino)phenol with Sodium polysulfide solution in return 106 ~ 112 ℃ heating 50 hours, then 70 ~ 80 ℃ blow air make precipitation. This indophenol?is by o- Toluidine and 4-Nitrosophenol in sulfuric acid in the condensation, then use Sodium sulfide reduction and have to. Sodium sulfide increase in the proportion of sulfur content and high temperature vulcanization, color is red and more bright-coloured dye.
Properties and Applications
red light blue to blue light purple. Dark brown liquid. PH value is 13.3; Viscosity 5.9 x 10-3 pa s.; Settleability (3000 r.p.m.); No separation, no settlement. In the Sodium sulfide solution solubility is good, for green grey; In concentrated sulfuric acid for blue purple, dilution of dark after precipitation.
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Fulling | Persperation Fastness | Soaping | |
| Moderate | Severe | ||||||
| ISO | 4 | 4-5 | 4-5 | 3-4(Alkali) | 4-5 | 4 | 3 |
| AATCC | 5 | 5 | 5-6 | 4 | 4-5 | ||
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Sulphur Blue 7 -Leuco(69900-21-6)Related Product Information
- Sulphur Brown 10 - Leuco
- Leuco Sulphur Brown 16
- Phenol, 4-[[4-(dimethylamino)phenyl]azo]-, reaction products with sodium sulfide (Na2(Sx)), leuco derivs.
- Leuco Sulphur Brown 12
- Leuco sulfided 4-[(2,4-dinitrophenyl)amino]phenol
- Leuco Sulphur Brown 1
- C.I. Leuco Sulfur Brown 14
- Leuco polysulfurized 4-[(2,4-dinitrophenyl)amino]phenol
- Copper, cresol-1,5-dinitronaphthalene-sodium polysulfide reaction products complexes, leuco derivs.
- Sodium sulfide
- Sulphur Blue 7