Leuco Sulphur Brown 8
- Product Name
- Leuco Sulphur Brown 8
- Chemical Name
- Leuco Sulphur Brown 8
- Synonyms
- Leuco Sulphur Brown 8;C.I.Leuco Sulphur Brown 8:C.I.53020
- CBNumber
- CB69703425
- Formula Weight
- 0
- MOL File
- Mol file
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Leuco Sulphur Brown 8 Chemical Properties,Usage,Production
Preparation
1-Methyl-2,4-dinitrobenzene and Sodium polysulfide in 220 ~ 230 ℃ calcination 15 ~ 20 hours, with Sodium hydroxide product processing.
Properties and Applications
brown. Brown powder. In the water partly dissolved, for brown. In the Sodium sulfide solution solubility is good, for yellow to red orange; In concentrated sulfuric acid partly dissolved, for orange brown, dilution have orange brown precipitation. In acetic acid or metal chromium, copper red, dark. In the basic insurance powder solution is almost invariant color; In Sodium hypochlorite solution for light yellow, join concentrated sulfuric acid turn yellow. Used for cotton, hemp, viscose fabric dyeing.
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Fulling | Persperation Fastness | Soaping | |
| Moderate | Severe | ||||||
| ISO | 3-4 | 3-4 | 3-4 | 5 | 5 | 4-5 | |
Leuco Sulphur Brown 8 Preparation Products And Raw materials
Raw materials
Preparation Products
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Leuco Sulphur Brown 8 Suppliers
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