|
Appearance
|
White to light yellow crystalline powder***
|
|
Assay (argentometric)
|
Min 99%
|
|
Insoluble matter
|
Max 0.005%
|
|
Residue on ignition
|
Max 0.05%
|
|
Chloride & bromides
|
Max 0.005%
|
|
Phosphate (PO4)
|
Max 0.001%
|
|
Sulphate (SO4)
|
Max 0.05%
|
|
Barium (Ba)
|
Max 0.002%
|
|
Iron (Fe)
|
Max 0.0005%
|
|
Heavy metal (as Pb)
|
Max 0.001%
|
|
Arsenic (As)
|
Max 0.0004%
|
|
****May become pale yellow on storage
|
|