Leuco Sulphur Brown 21
Name:C.I.Leuco Sulphur Brown 21,C.I.23065
Molecular Structure:
C.I.Leuco Sulphur Brown 21,C.I.23065,CAS 12262-30-5,Diresul Liquid Golden Yellow,Immedial Leuco Brown 5G
CAS Registry Number:12262-30-5
Manufacturing Methods : 80 parts of 4-Methylbenzene-1,3-diamine , 48 parts of 4-Nitrobenzenamine and 283 parts of sulfur was stirred at 200 ~ 210 ℃ calcination 10 hours, then use Sodium sulfide solution treatment its product (BISO 1155, 39).
Properties and Applications: yellow brown.
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Fulling | Persperation Fastness | Soaping | |
| Moderate | Severe | ||||||
| ISO | 1-2 | 4 | 4 | 4 | 4-5 | 4 | 4 |
List of Suppliers:
Diresul Liquid Golden Yellow( Clariant GmbH )
Immedial Leuco Brown 5G( Cassella Farbwerke Mainkur AG )