Acid Blue 9 in all grades

Product name - acid blue 9 200% Type - triphenylmethane series ***** no. - 42090 ***** criteria test requirment 1 appearance : dark blue powder 2 solubility : 100 gms / lit. (min.) 3 loss on drying : 6 % max. (w/w at 105 deg. C.) 4 dye content : 65% (+ or û 2%). 5 uv absorption : 0.406 to 0.440abs at 630 nm of 0.0004% w/v solution 6 ph of 2% w/v soln. : 5.5 to 7.5 at 28 deg. C 7 water insoluble : 0.2% max. 8 dusting property : yes / no (as per requirement) 9 bulk density : 0.75 to 0.85 gm/cc 10 subsidary dyes : 3 (percent by mass max.) 11 dye intermediates : 6.8 (ebasa 0.3, obsa 1.5, leuco base 5) ( percent by mass max.) Acid violet 17 (300%) Type : triphenylmethane series ***** no. 42650 Appearance : dark violet powder Solubility : 50 gms / lit. (min) Loss on drying : 4%max. (w/w at 105 deg. C.) Shade & strength : comparable to standard (300%) Uv absorption : 0.750 abs at 548 nm of 0.001% w/v solution Ph of 2% w/v soln. : 6.5 to 7.5 Water insoluble : 0.5% max Dusting property : yes / no (as per sample) Bulk density : 0.65 to 0.70 gm/cc Confirm to standard: ir spectrum should match the standard Alkaline med. (10 ph) : blue Acidic med. (2 ph) : green Acid violet 49 (300%) Type : triphenylmethane series Ci no. 42640 Appearance : dark violet powder Solubility : 50 gms / lit. (min) Loss on drying : 4%max. (w/w at 105 deg. C.) Shade & strength: comparable to standard (300%) Uv absorption : 0.750 abs at 548 nm of 0.001% w/v solution Ph of 2% w/v soln. : 6.5 to 7.5 Water insoluble : 0.5% max Dusting property : yes / no (as per sample) Bulk density : 0.65 to 0.70 gm/cc Confirm to standard : ir spectrum should match the standard Alkaline med. (10 ph) : blue Acidic med. (2 ph) : green 25 kg hdpe drums/barrels