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Appearance
|
A white crystalline powder
|
|
Assay (Titration after Ion exchange)
|
Min 99%
|
|
Insoluble matter
|
Max 0.01%
|
|
pH (5% solution in water; 25°C)
|
5.2 - 9.2
|
|
Chloride (Cl)
|
Max 0.001%
|
|
Phosphate (PO4)
|
Max 0.001%
|
|
Nitrogen compounds (as N)
|
Max 0.0005%
|
|
Heavy metals (by ICP-OES)
|
Max 0.0005%
|
|
Iron (Fe)
|
Max 0.001%
|
|
Calcium (Ca)
|
Max 0.01%
|
|
Potassium (K)
|
Max 0.01%
|
|
Magnesium (Mg)
|
Max 0.005%
|
|
Loss on ignition (at 800°C)
|
Max 0.5%
|