Sulphur Brown 31
Name:C.I.Sulphur Brown 31,C.I.53280
Molecular Structure:
C.I.Sulphur Brown 31,C.I.53280
CAS Registry Number:
Manufacturing Methods : Naphthalen-2-ol sodium salt and sodium polysulfide in 270 ~ 280 ℃ calcination, product used for synthesis of soluble dyes (BIOS 1155, 13).
Properties and Applications: brown to dark brown.
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Fulling | Persperation Fastness | Soaping | |
| Moderate | Severe | ||||||
| ISO | 4-5 | 4 | 6 | 4 | |||
List of Suppliers: