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Appearance
|
A white crystalline powder
|
|
Assay ( as AI2(SO4)3.18H2O]; complexometric)
|
Min 98.0%
|
|
pH (2% solution in water)
|
2.5 - 4.0
|
|
Chloride (Cl)
|
Max 0.005%
|
|
Heavy metal (as Pb)
|
Max 0.002%
|
|
Ammonium (NH4)
|
Max 0.005%
|
|
Arsenic (As)
|
Max 0.001%
|
|
Calcium (Ca)
|
Max 0.02%
|
|
Iron (Fe)
|
Max 0.005%
|
|
Potassium (K)
|
Max 0.2%
|
|
Alkalies & alkaline earth metals
|
Max 0.4%
|