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935689

Sigma-Aldrich

Iron(II) sulfate heptahydrate

greener alternative

99.99% trace metals basis

Synonym(s):

Iron(II) sulfate heptahydrate, Ferrous sulfate heptahydrate, Iron sulphate

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About This Item

Empirical Formula (Hill Notation):
FeSO4 · 7H2O
CAS Number:
Molecular Weight:
278.01
MDL number:
UNSPSC Code:
12352311
NACRES:
NA.21

Quality Level

Assay

99.99% trace metals basis

form

powder or crystals (or granules)

greener alternative product characteristics

Design for Energy Efficiency
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sustainability

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color

light blue to green

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storage temp.

2-30°C

InChI

1S/Fe.H2O4S.7H2O/c;1-5(2,3)4;;;;;;;/h;(H2,1,2,3,4);7*1H2/q+2;;;;;;;;/p-2

InChI key

SURQXAFEQWPFPV-UHFFFAOYSA-L

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General description

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Application

Iron(II) sulfate heptahydrate, 99.99% trace metal basis is widely used in the synthesis of iron oxide, core shell Fe-Fe3O4 Nanostructures. These nanostructures were successfully used to trigger the sulphate radical oxidation of methyl orange (MO) in an aqueous solution by activating sodium persulfate. In addition, zero-valent iron is also used is also used as caatalyst for Fenton oxidation 2,4-dichlorophenol . Iron(II) sulfate heptahydrate is used as a catalyst for greener amide bond formation from amines and aldehydes. Moreover, iron(II) sulfate heptahydrate has been also used as an inexpensive and environmentally friendly catalyst, at room temperature for the four component Synthesis of Protected Homoallylic Amines. Iron(II) sulfate heptahydrate is also used as an important precursor for the synthesis of electrode materials for Battery. For example: The monoclinic form of FeOHSO4, synthesised from Iron(II)sulfate heptahydrate, has been used as a positive electrode material for rechargeable Li-ion batteries. In addition, Iron based flurophophate synthesised from Iron(II)sulfate heptahydrate also used as battery materials to increase the open-circuit voltage by manipulation of the oxidation state of 3d-metal through the electric effect of polyanion.

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


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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A 3.90 V iron-based fluorosulphate material for lithium-ion batteries crystallizing in the triplite structure
Barpanda, P.
Nature Materials, 10 (2011)
Monoclinic iron hydroxy sulphate: A new route to electrode materials
Reddy, M. Anji
Electrochemistry Communications, 11 (2009)
Heterogeneous Fenton oxidation of 2,4-dichlorophenol using iron-based nanoparticles and persulfate system
Li, Renchao
Chemical Engineering Journal, 264 (2015)
FeSO4?7H2O-Catalyzed Four-Component Synthesis of Protected Homoallylic Amines
Song, Qi-Yi
The Journal of Organic Chemistry, 72 (2007)
Core?shell Fe?Fe2O3 nanostructures as effective persulfate activator for degradation of methyl orange
Zhu, Linli
Separation and Purification Technology, 108 (2013)

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