Appearance (Colour)
Orange to Orange yellow
Appearance (Form)
Crystalline powder
Solubility (Turbidity) 10% solution in hot 5N H2SO4
Clear
Solubility (Colour) 10% solution in hot 5N H2SO4
Orange yellow
Assay (Iodometric)
min. 99%
Insoluble matter
max. 0.05%
Chloride (CI)
max. 0.001%
Iron (Fe)
max. 0.005%
Heavy Metals (Pb)
max. 0.002%
Phosphate (PO4)
max. 0.005%
Copper (Cu)
max. 0.002%
Sodium (Na)
max. 0.005%
Potassium (K)
max. 0.005%
Calcium (Ca)
max. 0.001%