Reactive Blue 21

PRODUCT DATA
Colour Index No. 21
Colour Index Name Reactive Blue 21
CAS No. 12236-86-1
PHYSICAL PROPERTIES
Physical Form Fine Dry Powder
Colour Blue
Odour Odourless
Moisture Content 0.50 % Max
Bulk Density 0.700 to 0.750
pH 6 to 8
SOLUBILITY TEST
Solution Stability Fine Dry Powder
Electrolyte Stability Blue
FASTNESS PROPERTIES
Light 4 - 5
Washing 4 - 5
Rubbing 3 - 4
Perspiration 4 - 5

Reactive Black 5:

Reactive Black 5 is a representative diazo dye found in textile waste waters and several AOPs methods of degradation of this dye have been reported, combined with others like photocatalytic action, ultrasound, ozone and Fenton’s reagent
CAS No. 17095-24-8
Chemical Name REACTIVE BLACK 5
Molecular Formula C26H21N5Na4O19S6
Formula Weight 991.82
Application An azo dye mixture for cellulosic fibres