Skip to Content
Merck
All Photos(2)

Key Documents

View All Documentation

Safety Information

204986

Sigma-Aldrich

Zinc sulfate heptahydrate

≥99.95% trace metals basis

Synonym(s):

Zinc(II) sulfate heptahydrate

Sign Into View Organizational & Contract Pricing
All Photos(2)

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
grade:
for analytical purposes
form:
powder, crystals or chunks
solubility:
H2O: 965 g/L at 20 °C

grade

for analytical purposes

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

Looking for similar products? Visit Product Comparison Guide

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

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

PDSCL

Deleterious substance

PRTR

Class I Designated Chemical Substances

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

204986-BULK:
204986-250G:4548173114538
204986-10G:4548173114521
204986-50G:4548173114545
204986-VAR:

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
MKCQ8189
MKCQ1765
MKCN3225
MKCG6088
MKCG6087

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Jorge L Rosado et al.
Food and nutrition bulletin, 33(4), 261-266 (2013-02-22)
Corn tortilla is the staple food of Mexico and its fortification with zinc, iron, and other micronutrients is intended to reduce micronutrient deficiencies. However, no studies have been performed to determine the relative amount of zinc absorbed from the fortified
Mahmoud Hussein Hadwan et al.
BMC urology, 12, 32-32 (2012-11-14)
Zinc in human seminal plasma is divided into three types of ligands which are high (HMW), intermediate (IMW), and low molecular weight ligands (LMW). The present study was aimed to study the effect of Zn supplementation on the quantitative and
Necrolytic acral erythema.
Emily Grauel et al.
Journal of drugs in dermatology : JDD, 11(11), 1370-1371 (2012-11-09)
Zinc sulfate treatment of vocal process granuloma.
Taner Yilmaz
European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery, 270(3), 1175-1175 (2012-10-12)
Akash Malik et al.
Pediatrics, 132(1), e46-e52 (2013-06-05)
Zinc supplementation during diarrhea substantially reduces the incidence and severity of diarrhea. However, the effect of short-course zinc prophylaxis has been observed only in children >12 months of age. Because the incidence of diarrhea is comparatively high in children aged
View All Related Papers

Articles

Low Resistivity Nanoscale Devices by Templated Electrochemistry

In many technologies, performance requirements drive device dimensions below the scale of electron mean free paths (λe). This trend has increased scientific interest and technological importance of electrical resistivities at the nanoscale.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service