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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: | 2-Naphthalenesulfonic acid, 5(or 8)-amino-8(or 5)-[(4-hydroxyphenyl)amino]-, reaction products with sodium sulfide (Na2(Sx)) |
| Synonyms: | 2-Naphthalenesulfonic acid, 5(or 8)-amino-8(or 5)-[(4-hydroxyphenyl)amino]-, reaction products with sodium sulfide (Na2(Sx));Sulphur Blue 15;Sulfur blue 15 (C.I. 53540);Sapphire blue CV;C.I.53540;Immedial Green Blue CV;Mitsui Sulphur Green CV;Calcogene Electric Blue CF |
| CAS: | 1327-69-1 |
| MF: | |
| MW: | 0 |
| EINECS: | 215-491-9 |
| Product Categories: | |
| Mol File: | Mol File |
| Preparation | 8-Amino-5-(4-hydroxyphenylamino)naphthalene-2-sulfonic acid and aqueous Sodium polysulfide heating, in 107 ~ 108 ℃ under reflux 2 4 hours, will be part of the precipitation in the Sodium sulfide of dye solution, blowing air redeposition. This indophenol?is from 8-Amino-5-nitronaphthalene-2-sulfonic acid and where did 5-Aminonaphthalene-2-sulfonic acid and where did 4-Aminophenol with Sodium hypochlorite oxidation of mixture, then use Sodium sulfide reduction and have to. | |||||||||||||||||||||||||
green light blue. Blue gray powder. Slightly soluble in water, not soluble in alcohol and benzene, soluble in Sodium sulfide solution for olive. In concentrated sulfuric acid for dark blue, dark blue precipitation after dilution. Dyeing content in alkaline insurance powder for dark yellow, after oxidation can restore the original colour and lustre; In Sodium hypochlorite solution all fade, join concentrated sulfuric acid into dark blue. Mainly used for cotton, hemp, viscose fiber dyeing and printing.
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| Raw materials | 8-amino-5-(4-hydroxyphenylamino)naphthalene-2-sulfonicacid-->8-amino-5-nitronaphthalene-2-sulfonic acid-->4-Aminophenol-->1-Aminonaphthalene-6-sulfonic acid |
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