seng sulfat / zink sulfate (ZnSO4.7H2O) analis
Description: Zinc sulfate heptahydrate | ZnSO4.7H2O pro analis
Grade : Pro Analis
Merk : MERCK
Specifications Assay (complexometric) 99.5 - 103.0 %
Identity passes test Appearance of solution passes test Insoluble matter ≤ 0.01 %
pH-value (5 %; water, 25 °C) 4.4 - 5.6
Chloride (Cl) ≤ 0.0005 %
Total nitrogen (N) ≤ 0.0005 %
Nitrate (NO₃) ≤ 0.002 %
As (Arsenic) ≤ 0.00005 %
Ca (Calcium) ≤ 0.001 %
Cd (Cadmium) ≤ 0.0005 %
Cu (Copper) ≤ 0.0005 %
Fe (Iron) ≤ 0.0005 %
K (Potassium) ≤ 0.001 %
Mg (Magnesium) ≤ 0.001 %
Mn (Manganese) ≤ 0.0003 %
Na (Sodium) ≤ 0.001 %
NH₄ (Ammonium) ≤ 0.001 %
Pb (Lead) ≤ 0.001 %
Harga tertera per gram dan minimal 10 gr
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Catatan:
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