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935662

Sigma-Aldrich

Zinc sulfate heptahydrate

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99.999% trace metals basis

Synonym(s):

White vitriol, Zinc vitriol

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About This Item

Linear Formula:
ZnSO4 · 7H2O
CAS Number:
7446-20-0
Molecular Weight:
287.56
MDL number:
MFCD00149894
UNSPSC Code:
51241886
NACRES:
NA.21

Quality Level

100

Assay

99.999% trace metals basis

form

powder

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impurities

≤15.0 ppm (trace metals analysis)

pH

4-6 (20 °C, 50 g/L in water)

mp

100 °C

solubility

ethanol: sparingly soluble
glycerol: sparingly soluble
water: soluble

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Enabling

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

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Zinc sulfate heptahydrate is a colorless solid and known as white vitriol. It is orthorhombic crystal, and at high temperature, it decomposes into zinc oxide and sulfur trioxide. Zinc sulfate heptahydrate is soluble in water, slightly soluble in ethanol and glycerol. Zinc sulfate is produced by dissolving Zinc metal in aqueous sulfuric acid. High-purity zinc oxide is treated with sulfuric acid to produce pharmaceutical-grade zinc sulphate.

Application

Zinc Sulfate Heptahydrate is widely used in the synthesis of ZnO nanoparticles. It has also been used as a template for solvothermal synthesis of nanoporous TiO2 spheres with tunable chamber structures ranging from hollow to solid and hybrid compositions. Lithium sulfate and Zinc sulfate are used as an additive to increase the life cycle, cathode stability and efficiency of lead acid batteries. In addition, Zinc sulfate is also used in multiple industrial applications such as animal feed as a supplement on growth performance. It is also used as an inhibitor of fungal growth[5]. In order to increase the thickness of the Zn plating as the zinc concentration increases, zinc sulphate heptahydrate is frequently used as an electrolyte in the electroplating industry[6].

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Description
Pricing

Signal Word

Danger

Hazard Statements

H302,H318,H410

Hazard Classifications

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

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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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Effects of supplemental zinc sulfate on growth performance, carcass characteristics, and antimicrobial resistance in feedlot heifers
Drouillard, J.S.
Journal of Animal Science, 97 (2019)
Effects of Lithium Sulfate and Zinc Sulfate Additives on the Cycle Life and Efficiency of Lead Acid Batteries
Musei, N.N.
ACS Omega, 6 (2021)
Intelligent Hydrated-Sulfate Template Assisted Preparation of Nanoporous TiO2 Spheres and Their Visible-Light Application
Lu, X.
ACS Applied Materials & Interfaces, 3 (2011)
Controlled Precipitation of Zinc Oxide Particles at Room Temperature
Oliveira, A. P. A.
Chemistry of Materials, 15 (2003)

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