Acid Blue 9 Acid blue 9 200% C.I no : 42090 Cas no : 3844 - 45 -9 Commercial name : acid blue 9 Type of dye : acid dye Chemical class : triphenylmethane Description : bluish powder Hue : bright greenish blue Solubility gpl at rt : 200 û 225 Insoulubles % : 0.1- 0.2 Ph of 2.0 % soln : 6.0 - 7.0 Strength - reflectance : 100 +/ - 2 % De : 0.5 +/ - 0.2 Wavelength of max. Absorption nm : 630 Foaming : nil Dusting property : dedusted Moisturer content % : 6-may Heavy metals -- lead ppm : < 10 Arsenic ppm : < 03 Chromium ppm :
