Disperse Blue 181
Name:C.I.Disperse Blue 181
Molecular Structure: anthraquinones
C.I.Disperse Blue 181,CAS 71872-42-9,419.23,C21H11N2O3
Molecular Formula:C21H11N2O3
Molecular Weight: 419.23
CAS Registry Number: 71872-42-9
Manufacturing Methods : 1-Amino-4-bromo-9,10-dioxo-9,10-dihydroanthracene-2-sulfonic acid and 2-Aminobenzoic acid condensation, with insurance powder sulfonylurea take off, with chlorosulfonic closed loop, with bromide brominated.
Properties and Applications: colourful green light blue. Dark blue powder, insoluble in water. The strong sulfuric acid in orange, diluted into blue; Insurance powder with reduction of dark purple. Difficulties can dissolve in three chlorobenzene and organic solvents. Mainly used for polyester/cotton fabric dyeing.
| Standard | Ironing Fastness | Light Fastness | Persperation Fastness | Washing Fastness | |||
| Fading | Stain | Fading | Stain | Fading | Stain | ||
| ISO | 4 | 4-5 | 7 | 5 | 5 | 4-5 | 5 |
List of Suppliers:
Polyestren Turquoise GP( Cassella Farbwerke Mainkur AG )