Sulphur Brown 4
Name:C.I.Sulphur Brown 4,C.I.53210
Molecular Structure:
C.I.Sulphur Brown 4,C.I.53210,CAS 1326-90-5,Sulphur Brown GD,Sulphur Brown GNL,Sulphur Dark Brown GD,Sulphur Dark Brown GR
CAS Registry Number:1326-90-5
Manufacturing Methods : coarse Cresol 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. 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.
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Fulling | Persperation Fastness | Soaping | |
| Moderate | Severe | ||||||
| ISO | 4 | 3 | 3-4 | 4-5 | 4 | 3-4 | |
List of Suppliers:
Sulphur Brown GD,Sulphur Brown GNL,Sulphur Dark Brown GD,Sulphur Dark Brown GR
Bengbu Yongyan Dyes & Chemicals Co. Ltd
Sulphur Brown 4 150% (Hangzhou Dikai Chemical Co Ltd)
Sulphur Dark Brown GD(Nanjing Chemicals Import and Export Corp)
Sulphur Dark Brown GD (Sinochem Jiangsu I/E Corp.)
Sulphur Dark Brown GD(Sinochem Liaoning Import & Export Corporation)