Vat Violet 4
Name:C.I.Vat Violet 4,C.I.73400
Molecular Structure: Thioindigo class
C.I.Vat Violet 4,C.I.73400,CAS 6406-15-1,380.87,C20H9ClO2S2,Ciba Violet 6R
Molecular Formula:C20H9ClO2S2
Molecular Weight: 380.87
CAS Registry Number:6406-15-1
Manufacturing Methods : 9-Chloronaphtho[1,2-b]thiophen-3(2H)-one and Benzo[b]thiophene-2,3-dione condensation.
Properties and Applications: purple. In concentrated sulfuric acid for green, dilution after purple; In concentrated nitric acid for the red light purple; In the basic insurance powder solution for red light yellow, In the acidic insurance powder solution for yellow.
| Standard | Ironing Fastness | Chlorine bleach | Light Fastness | Mercerized | Oxygen bleach | Soaping | |
| Fading | Stain | ||||||
| ISO | 4-5 | 4-5 | 5-6 | 4 | 4 | 4-5 | 5 |
List of Suppliers:
Ciba Violet 6R( Ciba Specialty Chemicals Inc )
[…] C.I.Vat Violet 4 […]
[…] Methods : (a) in the presence of Pyridine , with Chlorosulfonic acid treatment C.I. Vat Violet 4 leuco; (b) in the Pyridine with metal (such as copper, iron, zinc, etc) and Sulfur trioxide source […]