Name:C.I.Reactive
Blue 81,C.I.18245
Molecular Structure: Single azo class
C.I.Reactive Blue 81,C.I.18245,CAS
75030-18-1,808.49,C25H14Cl2N7Na3O10S3,Brilliant Blue F2R,Blue CD-2R, Blue F-2R
Molecular Formula:C25H14Cl2N7Na3O10S3
Molecular Weight: 808.49
CAS Registry Number:75030-18-1
Manufacturing Methods : 5-Amino-2-(phenylamino)benzenesulfonic acid diazo, and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acidcoupling, and then and 2,4,6-Trichloro-1,3,5-triazine condensation .
Properties and Applications: red light
blue. Blue powder, in the water solubility is better. Used for cotton fabrics,
polyamide, wool dyeing or fountain of rolling dyeing.
Standard(cellulose) |
Light Fastness |
Oxygen bleaching |
Persperation Fastness |
Soaping |
|||
Fading |
Stain |
Fading |
Stain |
Fading |
Stain |
||
ISO |
3-4 |
4-5 |