204986

Zinc sulfate heptahydrate

≥99.95% trace metals basis

• Synonym(s): Zinc(II) sulfate heptahydrate
• Linear Formula: ZnSO₄ · 7H₂O
• CAS Number: 7446-20-0
• Molecular Weight: 287.56
• EC Number: 231-793-3
• MDL number: MFCD00149894
• UNSPSC Code: 12352302
• PubChem Substance ID: 24852302
• NACRES: NA.23

Properties

• agency: suitable for SM 5210
• assay: ≥99.95% trace metals basis
• form: powder, crystals or chunks
• impurities: ≤500.0 ppm Trace Metal Analysis
• solubility: H₂O: 965 g/L at 20 °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

Description

General description

Zinc sulfate heptahydrate is a white crystalline solid commonly used as an electrolyte additive in batteries, particularly in zinc-carbon batteries. Additionally, it can be used as a corrosion inhibitor in batteries and a precursor to synthesize nanoparticles.

Application

Zinc sulfate heptahydrate can be used:

• As an electrolyte for rechargeable hybrid aqueous batteries.
• As a precursor to synthesize ZnO nanoparticles.
• As a cathodic corrosion inhibitor in batteries.

Zinc sulfate heptahydrate coated activated carbon can be used in water filtration.

Safety Information

• pictograms: GHS05,GHS07,GHS09
• signalword: Danger
• hcodes: H302,H318,H410
• pcodes: P264 - P273 - P280 - P301 + P312 - P305 + P351 + P338 - P391
• Hazard Classifications: Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1
• Storage Class: 13 - Non Combustible Solids
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: dust mask type N95 (US), Eyeshields, Gloves