Vat Black 23
Name:C.I.Vat Black 23,C.I.65260
Molecular Structure: anthraquinones
Molecular Formula:
Molecular Weight:
CAS Registry Number:1328-28-5
Manufacturing Methods : 1,5-Diaminoanthraquinone or 1,8-diaminoanthraquinone with Potassium hydroxide alkali fusion.
Properties and Applications: Ash. Slightly soluble in 1, 2, 3, 4 – Tetrahydronaphthalene, Xylene, insoluble in Etanol. In concentrated sulfuric acid for brown, dilution after black brown precipitation; In the basic insurance powder solution for dark red light purple.
| Standard | Ironing Fastness | Chlorine bleach | Light Fastness | Mercerized | Oxygen bleach | Soaping | |
| Fading | Stain | ||||||
| ISO | 4 | 4 | 6-7 | 4 | 4 | ||
List of Suppliers:
Paradone Grey B( Holliday L B & Co Ltd )