Characteristics White crystalline powder

Identification Chromogenic reaction: Positive reactionTLC: Consistent with reference standardIR: Consistent with reference standardChloride: Positive reaction

PH 4.5-6.5
Clarity of solution <1# reference suspension
Color of solution  <2# yellow reference solution
Sulphate  <=0.05%
Related substances (TLC) <=1.0%
Toluene <=0.089%
Loss on drying <=0.5%
Residue on ignition <=0.1%
Ammonium salt <=0.08%
Heavy metals <=10PPM
Assay(on dry basis) >=99.0%