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204986

Sigma-Aldrich

Zinc sulfate heptahydrate

≥99.95% trace metals basis

Synonym(s):

Zinc(II) sulfate heptahydrate

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About This Item

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

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

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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.

Signal Word

Danger

Hazard Statements

H302,H318,H410

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Mechanism of Inhibition of Galvanic Corrosion Between Carbon Steel and Stainless Steel by Sodium N-Lauroyl Sarcosinate and Zinc Sulfate
Shuai Hu, et al.
Surface Review and Letters, 27, 1950146-1950146 (2020)
Zinc-sulphate-heptahydrate coated activated carbon for microbe removal from stormwater
Robert M Guest, et al.
Water Science and Technology, 66, 1582-1589 (2012)
Efficient, One-Step Mechanochemical Process for the Synthesis of ZnO Nanoparticles
Jun Lu, et al.
Industrial & Engineering Chemistry Research, 47, 1095-1101 (2008)
O I Smian et al.
Likars'ka sprava, (3-4)(3-4), 67-71 (2013-01-30)
The article analyzed 60 patients with community-aquired pneumonia from ages 6 to 18 years. The dependences of trace levels of zinc and copper in the serum of these children on the activity of the inflammatory process. Analysis of survey results
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Availability of chemical response-specific lists of genes (gene sets) for pharmacological and/or toxic effect prediction for compounds is limited. We hypothesize that more gene sets can be created by next-generation text mining (next-gen TM), and that these can be used
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