4.120050
Zinc sulfate heptahydrate
ACS, ISO, Reag. Ph Eur
ZnSO4•7H2O M.=287.54
CAS No. 7446-20-0
UN 3077
Assay(Complexometric) ≥ 99.0%
Identity p/t
Clarity of solution p/t
Insoluble matter ≤ 0.01%
pH value (5% in H2O, 25 °C) 4.4 ~ 5.6
Chloride (Cl) ≤ 0.0005%
Total nitrogen (N) ≤ 0.0005%
Nitrate (NO3) ≤ 0.002%
Ammonium (NH4) ≤ 0.001%
As ≤ 0.0005% Ca ≤ 0.001%
Cd ≤ 0.0005% Cu ≤ 0.0005%
Fe ≤ 0.0005% K ≤ 0.001%
Mg ≤ 0.001% Mn ≤ 0.0003%
Na ≤ 0.001% Pb ≤ 0.001%
Corresponds to ACS, ISO, Reag.Ph Eur p/t
温馨提示:不可用于临床ZL。