|
Appearance
|
White crystalline powder
|
|
Assay
|
Min 99%
|
|
Chloride (Cl)
|
Max 0.002%
|
|
Nitrate (NO3)
|
Max 0.001%
|
|
Insoluble matter
|
Max 0.01%
|
|
Heavy metal (as Pb)
|
Max 0.0005%
|
|
Iron (Fe)
|
Max 0.0005%
|
|
Calcium (Ca)
|
Max 0.005%
|
|
Sodium (Na)
|
Max 0.005%
|
|
Potassium (K)
|
Max 0.05%
|
|
Loss on drying (at 150°C)
|
13 - 15%
|