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Sodium sulfate anhydrous, 99.5% (pure p.a.)
Impurities content (weight %) | |
---|---|
Insoluble in water substances | <0.005 |
Calcination losses | <0.2 |
Free sulfuric acid (H2SO4) | <0.01 |
Free alkali (NaOH) | <0.01 |
Nitrates (NO3- ) | <0.0005 |
Phosphates (PO43-) | <0.001 |
Chlorides (Cl-) | <0.001 |
Ammonium salts (NH4+) | <0.0005 |
Iron (Fe2+) | <0.001 |
Potassium (K+) | <0.01 |
Calcium (Ca2+) | <0.005 |
Magnesium (Mg2+) | <0.005 |
Arsenic (As3+) | <0.0001 |
Heavy metals (Pb2+) | <0.0005 |