Sulphur Green 7
Name:C.I.Sulphur Green 7,C.I.53580
Molecular Structure:
C.I.Sulphur Green 7,C.I.53580,CAS 1327-77-1,Atul Sulphur Green 5G
CAS Registry Number:1327-77-1
Manufacturing Methods : 5-(4-Hydroxyanilino)-8-(4-methylanilino)-lnaphthalenesulfonic acid in the presence of Copper sulfate monohydrate with Sodium polysulfide ethanol solution heating, reflux 50 hours, then add the Sodium nitrite, again boiling 6 hours, steamed out ethanol, in 50 ~ 60 ℃ blowing air make precipitation. This indophenol is by 8-(P-toluidino)naphthalene-1-sulfonic acid and where did 4-Aminophenol with Sodium hypochlorite oxidation of mixture, then use Sodium hydrosulfide reduction and have to (BIOS 1155, 11-12)
Properties and Applications: green. Green powder. Soluble in Sodium sulfid solution. In acetic acid, chromium, copper colour and lustre is blue, shallow, dark. Used for cotton, hemp, viscose fabric dyeing, for deep green light blue.
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Fulling | Persperation Fastness | Soaping | |
| Moderate | Severe | ||||||
| ISO | 3 | 4-5 | 4 | 4 | 2-3 | ||
List of Suppliers:
Atul Sulphur Green 5G( Atul Limited )