Vat Brown 5
Name:C.I.Vat Brown 5,C.I.73410
Molecular Structure: Thioindigo class
C.I.Vat Brown 5,C.I.73410,CAS 3989-75-1,396.48,C24H12O2S2,Brown RRD,Vat Brown RRD
Molecular Formula:C24H12O2S2
Molecular Weight: 396.48
CAS Registry Number:3989-75-1
Manufacturing Methods : Naphtho[2,1-b]thiophen-1(2H)-one oxidation, this intermediates in Chlorobenzene using Phosphorus trichloride or 2-(Naphthalen-2-ylthio)acetic acid closed loop and have to (BIOS986, 260; FIAT 764).
Properties and Applications: brown to red light brown. Red brown powder. Insoluble in water and Etanol, slightly soluble in Xylene for bordeaux red solution. In concentrated sulfuric acid to dark brown, and then into blue, after dilution for blue; In the basic insurance powder also concentrate for the red light yellow, In the acidic insurance powder also concentrate for light brown. For light brittle dye. Suitable for direct printing, resist printing and aniline black color printing. Suitable for knitting &cotton fabric dyeing, more suitable for silk printing, and can also be used to viscose and wool dyeing. Can be processed into organic pigment.
| Standard | Ironing Fastness | Chlorine bleach | Light Fastness | Mercerized | Oxygen bleach | Soaping | |
| Fading | Stain | ||||||
| ISO | 3 | 4 | 6-7 | 4 | 4-5 | 4-5 | 5 |
| AATCC | 4 | 4-5 | 5-6 | 5 | 4-5 | ||
List of Suppliers:
Arlanon Brown RRD ( Arlabs Ltd )
Carvat Printing Brown RRD Pst. ( Carey Industries Inc. )
Icho Vat Brown RRD ( Indian Chemical Industries )
Indocron Brown RRD( Indokem Ltd )
[…] powder solution for red yellow; In the acidic insurance powder solution for light brown. And C.I.Vat Brown 5 and the same chemical […]
[…] C.I.Vat Brown 5| […]
[…] Methods : (a) in the presence of Pyridine , with Chlorosulfonic acid treatment C.I. Vat Brown 5 leuco; (b) in the Pyridine with metal (such as copper, iron, zinc, etc) and Sulfur trioxide source […]