Reactive Blue 81
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 | |||||
List of Suppliers:
Acticrom Brilliant Blue F2R ( Multicrom SA )
Begative Blue CD-2R ( PT Colorindo Aneka Chemicals )
Blue M2R (United Chemie)
Helaktyn Blue F-2R (Boruta – Kolor)
Jakofix Brilliant Blue C4R(jay Chemical Industries Ltd)
Kemaion Blue M2R( Karsandas Mavji )
Libactive Reactive Blue M2R ( Liberty Exports Ltd )
Polkative Blue PX-2R ( PT Polkrik Chemicals Co )
Vilmafix Blue 2R-A( Vilmax SA )