Solfato di zinco eptaidrato AGR ACS, Reag.Ph. Eur., 1 kg

Solfato di zinco eptaidrato AGR
ZnSO4·7H2O
Vetriolo bianco
M.W: 287,54 CAS: 7446-20-0 EC: 231-793-3 TARIC: 28332920
EC INDEX: 030-006-00-9
UN: 3077 IMDG: 9 III UN 3077 ADR: 9 III UN 3077 IATA: 9 III UN 3077

Appearance colourless crystal or white powder
Assay 99.5 – 100.5%
Substances insoluble in water (H2O) ≤ 0.005%
Iron (Fe) ≤ 0.0003%
pH (5% water, 20°C) 4.4 – 5.6
Nitrates (NO3) ≤ 0.002%
Copper (Cu) ≤ 0.0005%
Ammonium (NH4) ≤ 0.001%
Chloride (Cl–) ≤ 0.0003%
Arsenic (As) ≤ 0.0001%
Potassium (K) ≤ 0.001%
Calcium (Ca) ≤ 0.002%
Cadmium (Cd) ≤ 0.0001%
Magnesium (Mg) ≤ 0.0003%
Manganese (Mn) ≤ 0.0003%
Sodium (Na) ≤ 0.001%
Lead (Pb) ≤ 0.001%