221376

Zinc sulfate heptahydrate

ACS reagent, 99%

• 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: 329752263
• NACRES: NA.21

Properties

• grade: ACS reagent
• agency: suitable for SM 5210
• assay: 99%; 99.0-103.0% (ACS specification)
• form: crystals or chunks
• reaction suitability: reagent type: catalyst; core: zinc
• 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%
• 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

Application

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

• 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: 11 - Combustible Solids
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable