Zinc sulfate heptahydrate

grade

ACS reagent

Quality Level

300

Agency

reag. ISO
reag. Ph. Eur.

product line

EMSURE^®

Assay

99.5-103.0% (complexometric)

form

solid

potency

1260 mg/kg LD₅₀ oral (Rat)

impurities

≤0.01% Insoluble matter

pH

4-6 (20 °C 50 g/L in H₂O)

mp

100 °C

solubility

965 g/L

density

1.97 g/cm³ at 20 °C

bulk density

800‑1000 kg/m³

anion traces

chloride (Cl^–): ≤0.0005%
nitrate (NO₃^–): ≤0.002%

cation traces

As: ≤0.00005%
Ca: ≤0.001%
Cd: ≤0.0005%
Cu: ≤0.0005%
Fe: ≤0.0005%
K: ≤0.001%
Mg: ≤0.001%
Mn: ≤0.0003%
N: ≤0.0005%
NH₄⁺: ≤0.001%
Na: ≤0.001%
Pb: ≤0.001%

storage temp.

2-30°C

SMILES string

O.O.O.O.O.O.O.[Zn++].[O-]S([O-])(=O)=O

InChI

1S/H2O4S.7H2O.Zn/c1-5(2 3)4;;;;;;;;/h(H2 1 2 3 4);7*1H2;/q;;;;;;;;+2/p-2

InChI key

RZLVQBNCHSJZPX-UHFFFAOYSA-L