Specification Test Results
|
Assay (calculated on anhydrous) |
99.8 - 100.5 % |
|
Appearance |
White crystalline powder |
|
Identification |
Passes test |
|
Heavy metals (as Pb) |
Max. 5 ppm |
|
Ignition residue (SO4) |
Max. 100 ppm |
|
Insolubility in water |
Max. 30 ppm |
|
Water |
Max. 0.1 % |
|
Cl (Chloride) |
Max. 5 ppm |
|
SO4 (Sulphate) |
Max. 5 ppm |
|
As (Arsenic) |
Max. 0.2 ppm |
|
Ca (Calcium) |
Max. 1 ppm |
|
Cd (Cadmium) |
Max. 0.1 ppm |
|
Cu (Copper) |
Max. 0.1 ppm |
|
Fe (Iron) |
Max. 0.2 ppm |
|
K (Potassium) |
Max. 0.3 ppm |
|
Mg (Magnesium) |
Max. 0.3 ppm |
|
Na (Sodium) |
Max. 5 ppm |
|
Pb (Lead) |
Max. 0.1 ppm |
|
Absorbance (280 nm) (0.5 mol/l) |
Max. 0.05 |
