Leuco Sulphur Brown 4
Leuco Sulphur Brown 4 Basic information
- Product Name:
- Leuco Sulphur Brown 4
- Synonyms:
-
- Leuco Sulphur Brown 4
- C.I.Leuco Sulphur Brown 4:C.I.53210
- MW:
- 0
- Mol File:
- Mol File
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Leuco Sulphur Brown 4 Usage And Synthesis
Preparation
coarse formic acid or m-Cresol?and Sodium polysulfide in 270 ~ 275 ℃ calcination, add or do not add Copper sulfate monohydrate all can.
Properties and Applications
brown light olive to yellow brown. Brown hydroscopicity powder. In hydrochloric acid in brown precipitation; In the Sodium hydroxide solution for blue light green.
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Fulling | Persperation Fastness | Soaping | |
| Moderate | Severe | ||||||
| ISO | 4 | 3 | 3-4 | 4-5 | 4 | 3-4 | |
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Leuco Sulphur Brown 4()Related Product Information
- Formamide, N,N'-1,4-phenylenebis-, reaction products with 4-methyl-1,3-benzenediamine and sulfur, leuco derivs.
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- 2-Naphthalenol, sulfurized, leuco deriv.