Appearance (Colour)
White
Appearance (Form)
Crystalline powder
Solubility (Turbidity) 10% aq. solution
Clear
Solubility (Colour) 10% aq. solution
Colourless
Assay (HPLC) (on anhydrous basis)
min. 98.0%
Assay (UV) (on anhydrous basis)
min. 98.0%
Phosphate (P)
max. 0.1%
Heavy Metals (Pb)
max. 0.001%
Vanadium (V)
max. 0.0005%
Water (KF)
max. 10%
Spectral Ratio (A250nm/A260nm)
0.76 - 0.80
Spectral Ratio (A280nm/A260nm)
0.14 - 0.18
Spectral Ratio (A290nm/A260nm)
0.01 - 0.04
