Chemical name: Auramine o
Chemical formula: C17h21n3
Molecular weight:267.373
Moisture: 1.5% w/w max
Physical appearance: Yellow powder
C.I. Name: Basic yellow 2
C.I. Number: 41000
Cas number :2465-27-2
Boiling point(c): 136
Ph(1 g / 99 ml water): 5.8-
25 kgs bags / cartons / drums
CriteriaTest requirement
AppearanceDark violet powder
Solubility 50 gms / lit. (min)
Loss on drying 4%max. (w/w at 105 deg. C.)
Shade & strengthComparable to standard (300%)
Uv absorption0.750 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 propertyYes / no (as per sample)
Bulk density 0.65 to 0.70 gm/cc
Confirm to standard Ir spectrum should match the stndard
Alkaline med. (10 ph)Blue
Acidic med. (2 ph)Green
