31665-6X500G Display Image

Zinc sulfate heptahydrate, puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., >=99.5%

Code: 31665-6X500G N1-1

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Puriss. p.a., ACS Reagent, Reagent ISO, Reagent European Pharmacopoeia, ≥99.5%

Assay:min. 99.5 %
Water insoluble matter:max. 0.005 %
pH (5 %, 25 °C):4.4 to 5.6
Arsenic (As):max. 0.00005 %
Calcium (Ca):max. 0.001 %
Cadmium (Cd):max. 0.0002 %
Copper (Cu):max. 0.0005 %
Iron (Fe):max. 5 ppm
Potassium (K):max. 0.001 %
Magnesium (Mg):max. 0.001 %
Manganese (Mn):max. 2 ppm
Sodium (Na):max. 0.0005 %
Lead (Pb):max. 0.0005 %
Chloride (Cl):max. 5 ppm
Ammonium (NH):max. 0.001 %
Nitrate (NO):max. 0.002 %
Total N:max. 0.0005 %
Appearance of the solution:complying