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450278

Sigma-Aldrich

Iron(II) sulfate hydrate

99.999% trace metals basis

Synonym(s):

Sulfuric acid, iron(II) salt (1:1), hydrate

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About This Item

Linear Formula:
FeSO4 · xH2O
CAS Number:
Molecular Weight:
151.91 (anhydrous basis)
EC Number:
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.23

Quality Level

Assay

99.999% trace metals basis

form

solid

impurities

≤15.0 ppm Trace Metal Analysis

density

1.9 g/mL at 25 °C (lit.)

application(s)

battery manufacturing

SMILES string

O.[Fe++].[O-]S([O-])(=O)=O

InChI

1S/Fe.H2O4S.H2O/c;1-5(2,3)4;/h;(H2,1,2,3,4);1H2/q+2;;/p-2

InChI key

XBDUTCVQJHJTQZ-UHFFFAOYSA-L

General description

Iron(II) sulfate hydrate is a highly water soluble, blue green crystalline solid at room temperature. It is paramagnetic in nature and widely used in the field of redox batteries, nanomaterial synthesis and water treatment.

Application

Iron(II) sulfate hydrate can be use:
  • As precursor to prepare polyanionic electrodes for secondary Li-ion batteries. It serves as an iron source to produce low cost and sustainable battery materials.
  • As an electrolyte precursor to fabricate cost effective and scalable redox flow batteries with excellent capacity retention.
  • As a starting material to prepare superparamagnetic iron oxide nanoparticles.
  • As a support material to fabricate air pollutant sensors.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

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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