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| OEM | OEM Services Provided |
| Feature | Good stability,Easy to Use |
| Classification | Dyes and Pigments |
| Advantage | Professional, Fast Delivery, Customizable | Samples | Apply for free，Contact us now. |
| Product Name: | Sulphur Brown 4 |
| Synonyms: | Sulphur Brown 4;Thionol Black Brown R;C.I. 53210;Diresul Brown R;Pirocard Brown CGN;Sofral Brown CGN;Sofral Dark Brown CRN;Sulfanol Olive TR |
| CAS: | 1326-90-5 |
| MF: | |
| MW: | 0 |
| EINECS: | |
| Product Categories: | |
| Mol File: | Mol File |
| Preparation | coarse Cresol or m-Cresol and Sodium polysulfide in 270 ~ 275 ℃ calcination, add or do not add Copper sulfate monohydrate all can. | |||||||||||||||||
brown light olive to yellow brown. Brown hydroscopicity powder. There are dark brown in hydrochloric acid precipitation; In concentrated Sodium hydroxide solution for blue light green. Used for cotton, hemp, viscose and vinylon/cotton blended fabric dyeing, and sometimes also used in leather dyeing.
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| Raw materials | Copper(II) sulfate-->m-Cresol-->Cresol-->SODIUM TETRASULFIDE-->m-Cresol |
Declaration: The products displayed on this website are intended exclusively for industrial applications or scientific research. They are not intended for medical, pharmaceutical, or food use. In accordance with applicable laws and regulations, purchasing organizations must hold valid qualifications and approvals.
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