|
Appearance
|
White powder/crystals/crystalline powder
|
|
Assay
|
Min 99.5%
|
|
Insoluble matter in methanol
|
Max 0.005%
|
|
Non-volatile in methanol
|
Max 0.05%
|
|
Chloride (Cl)
|
Max 0.001%
|
|
Phosphate (PO4)
|
Max 0.001%
|
|
Sulphate (SO4)
|
Max 0.01%
|
|
Calcium (Ca)
|
Max 0.005%
|
|
Iron (Fe)
|
Max 0.001%
|
|
Heavy metals (by ICP-OES)
|
Max 0.001%
|
|
Arsenic (As)
|
Max 0.0001%
|