Skip to Content
MilliporeSigma
All Photos(1)

Key Documents

View All Documentation

31665

Sigma-Aldrich

Zinc sulfate heptahydrate

Zinc sulfate heptahydrate

puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99.5%

Sign Into View Organizational & Contract Pricing

Select a Size

500 G
$113.00
1 KG
$167.00

$113.00

Available to ship onMay 01, 2025Details

Request a Bulk Order
All Photos(1)

Select a Size

Change View
500 G
$113.00
1 KG
$167.00

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:
329753872
NACRES:
NA.21
assay:
≥99.5%
form:
powder or crystals

$113.00

Available to ship onMay 01, 2025Details

Request a Bulk Order

grade

ACS reagent
puriss. p.a.

agency

USP/NF
reag. ISO
reag. Ph. Eur.

assay

≥99.5%

form

powder or crystals

impurities

≤0.0005% total nitrogen (N)

pH

4.4-5.6 (20 °C, 5%)

anion traces

chloride (Cl-): ≤5 mg/kg

cation traces

As: ≤0.5 mg/kg
Ca: ≤10 mg/kg
Cd: ≤2 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤10 mg/kg
Mg: ≤10 mg/kg
Mn: ≤2 mg/kg
Na: ≤5 mg/kg
Pb: ≤5 mg/kg

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

Related Categories

General description

Zinc sulfate heptahydrate has various industrial applications. It is widely employed as an electrolyte for zinc electroplating and for the storage of solar energy in various solar appliances. Its crystals exhibit diamagnetism.[1]

Application

Zinc sulfate heptahydrate may be used in the following studies:
  • To compose electrolyte for the electrodeposition of Cu-Zn-Sn precursors on Mo-coated glass substrates.[2]
  • Preparation of internal standard (IS) working solution for use in liquid chromatography (LC) coupled with mass spectrometry (MS) analysis.[3]
  • Titrimetric estimation of holmium content in the holmium loaded poly(L-lactic acid) films and microspheres.[4]

signalword

Danger

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

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
SDBB2813
SDBB2432
BCCL6599
BCCL5655
STBL3841

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

Nucleation Kinetics, Growth and Characterization Studies of a Diamagnetic Crystal-Zinc Sulphate Heptahydrate (ZSHH).
Kanagadurai R, et al.
Journal of Chemistry, 6(3), 871-879 (2009)
J F Nijsen et al.
Biomaterials, 22(22), 3073-3081 (2001-09-29)
Holmium-loaded PLLA microspheres are useful systems in radioembolization therapy of liver metastases because of their low density, biodegradability and favourable radiation characteristics. Neutron activated Ho-loaded microspheres showed a surprisingly low release of the relatively small holmium complex. In this paper
Organic solvents compromise performance of internal standard (ascomycin) in proficiency testing of mass spectrometry-based assays for tacrolimus.
Kimberly L Napoli
Clinical chemistry, 52(4), 765-766 (2006-04-06)
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
Na Yuan et al.
Bioscience, biotechnology, and biochemistry, 76(11), 2014-2020 (2012-11-08)
As the second most abundant transition metal in humans, zinc plays essential roles in normal cellular biological functions, including metabolism, signalling, proliferation, gene expression and apoptosis. We use ZnSO(4) as a stressor in this study to investigate for the first
View All Related Papers
1 Review This action will navigate to reviews.

Questions

  1. Where can i find the Stability information?

    1 answer

    1. The best source of stability information for this product is the Certificate of Analysis. This product is not assigned an expiration date, but is set up on a retest schedule. If sufficient quantity of a given lot is available as the retest date approaches, the product is reassayed and the retest date is then extended, provided material meets all required specifications. For this product, a retest date of 3 years from the date of quality release is assigned. Products with no retest or expiration date listed on the Certificate of Analysis are warranted for 1 year from the date of shipment. For products that are assigned an expiration date, the information is also available on the product label. Please see the link below to review a sample Certificate of Analysis for this product:
      https://www.sigmaaldrich.com/certificates/Graphics/COfAInfo/fluka/pdf/PDF732367.pdf

      This product is stored at room temperature. For this and other storage condition information please see the link below to review the SDS.
      https://www.sigmaaldrich.com/sds/sigald/31665

      Helpful?

Reviews

Active Filters

  1. 1 Ratings-Only Review

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