Zinc Sulfate Heptahydrate 99% ACS Reagent, 1 kg

Zinc Sulfate Heptahydrate 99% ACS Reagent, 1 kg

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Due to a dramatic reduction in supply, stock numbers cannot be guaranteed. All purchases will be followed by an order confirmation with estimated ship date and you will be notified if stock is unavailable. All orders for healthcare products placed after January 24, 2020 are non-cancellable and non-returnable. Thank you for your continued cooperation and partnership.

Zinc Sulfate Heptahydrate 99% ACS Reagent 1 Kg

  • CAS Number 7446-20-0 
  • Linear Formula ZnSO4 · 7H2O
  • Molecular Weight 287.56
  • EC Number 231-793-3
  • MDL number MFCD00149894
  • PubChem Substance ID 329752263
grade ACS reagent

99.0-103.0% (ACS specification)

impurities ≤0.01% insolubles
pH 4.4-6.0 (25 °C, 5%)
solubility water: soluble 965 g/L at 20 °C
anion traces

chloride (Cl-): ≤5 ppm
nitrate (NO3-): ≤0.002%

cation traces

Ca: ≤0.005%
Fe: ≤0.001%
K: ≤0.01%
Mg: ≤0.005%
Mn: ≤3 ppm
NH4+: ≤0.001%
Na: ≤0.05%
Pb: ≤0.003%



Zinc sulfate heptahydrate may be used to prepare:
Zinc tris(thiourea) sulphate (ZTS), a semiorganic nonlinear optic (NLO) material that may be useful in laser fusion experiments and in second-harmonic-generation (SHG) devices.
Highly pure zinc oxide nanostructures via a precipitation method for use in catalytic reactions.

Safety Information



Signal word Danger
Hazard statements H302-H318-H410
Precautionary statements P273-P280-P305 + P351 + P338-P501
WGK Germany 3
RTECS ZH5300000


Safety Data Sheet


Note: These chemicals are for research & laboratory use only. Your order will not be processed if you do not work for, and ship to, a registered laboratory or research facility. Not for topical applications. An official Declaration of Use form may be required.

Most chemicals cannot be expedited.

This item has a Haz-Mat shipping fee built into the price. Fee is applicable only to the first item purchased. Additional HazMat items will be discounted automatically in the shopping cart. HazMat items always require special DOT handling and in rare cases may incur additional fees not levied prior to checkout. Request a quote for the most accurate pricing.

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and reproductive harm. Prop 65 Warning

Please note: This product is not returnable.

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