6483-77-8 Usage
Uses
Used in Textile Industry:
Direct Brown 79 is used as a dye for cellulose fibers, such as cotton and viscose, to produce a yellow-brown color. It is particularly effective at a temperature of 80°C, where it exhibits the highest affinity for the fibers. The dye is also known for its good discharge properties and is not easily sensitive. After dyeing, treatment with copper sulfate can improve the dyeing fastness.
Used in Knitting Fabric, Blankets, and Flannelette:
Direct Brown 79 is used as a dye for various textile products, including knitting fabric, blankets, and flannelette. Its good dye consumption performance and affinity for cellulose fibers make it a suitable choice for these applications.
Used in Viscose/Silk and Wool/Nylon Blended Fabric Dyeing:
Direct Brown 79 is also used as a dye for blended fabrics, such as viscose/silk and wool/nylon. Its ability to produce a yellow-brown color and its compatibility with different types of fibers make it a versatile dye for these applications.
Standard:
Direct Brown 79 meets the following standards in terms of acid resistance, alkali resistance, light fastness, soaping, water fading, and stain fading:
Acid Resistance: ISO 3
Alkali Resistance: ISO 4
Light Fastness: ISO 2
Soaping: ISO 2
Water Fading: ISO 1-2
Stain Fading: ISO 1-2
Preparation
4-(4-Aminophenyl)benzenamine double nitriding, first coupled with 2-Hydroxybenzoic acid, and then and 4-Aminobenzene-1,3-disulfonic acid diazo, and Benzene-1,3-diamine coupled to a product matches.
Standard
Acid Resistance
Fading
Stain
ISO
3
Check Digit Verification of cas no
The CAS Registry Mumber 6483-77-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,4,8 and 3 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 6483-77:
(6*6)+(5*4)+(4*8)+(3*3)+(2*7)+(1*7)=118
118 % 10 = 8
So 6483-77-8 is a valid CAS Registry Number.
InChI:InChI=1/C31H24N8O9S2.3Na/c32-24-15-25(33)28(39-37-26-11-10-22(49(43,44)45)14-30(26)50(46,47)48)16-27(24)38-35-20-7-3-18(4-8-20)17-1-5-19(6-2-17)34-36-21-9-12-29(40)23(13-21)31(41)42;;;/h1-16,34H,32-33H2,(H,41,42)(H,43,44,45)(H,46,47,48);;;/q;3*+1/p-3/b36-21+,38-35+,39-37+;;;
