Appearance (Colour)
White
Appearance (Form)
Crystalline powder/Solid
Solubility (Turbidity) 10% hot aq. solution
Clear
Solubility (Colour) 10% hot aq. solution
Colourless
Assay (T)
min. 99.5%
pH (3.3% hot aq.solution )
3.8 - 4.8
Insoluble in methanol
max. 0.005%
Chloride (CI)
max. 0.001%
Sulphate (SO4)
max. 0.01%
Iron (Fe)
max. 0.001%
Heavy Metals (Pb)
max. 0.001%
Calcium (Ca)
max. 0.005%
Phosphate (PO4)
max. 0.001%
Nonvolatile with methanol
max. 0.05%