Skip to Content
Merck
All Photos(1)

Documents

44939

Sigma-Aldrich

Iron(II) chloride tetrahydrate

puriss. p.a., ≥99.0% (RT)

Synonym(s):

Ferrous chloride tetrahydrate

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Linear Formula:
FeCl2 · 4H2O
CAS Number:
13478-10-9
Molecular Weight:
198.81
EC Number:
231-843-4
MDL number:
MFCD00149709
UNSPSC Code:
12352302
PubChem Substance ID:
329756568
NACRES:
NA.21

vapor pressure

10 mmHg ( 693 °C)

grade

puriss. p.a.

Assay

≥99.0% (RT)

form

powder or crystals

impurities

≤0.001% total nitrogen (N)

pH

2.5 (20 °C, 100 g/L)

anion traces

sulfate (SO42-): ≤100 mg/kg

cation traces

As: ≤5 mg/kg
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤50 mg/kg
Cr: ≤10 mg/kg
Cu: ≤5 mg/kg
Fe3+: ≤2000 mg/kg
K: ≤50 mg/kg
Mg: ≤5 mg/kg
Mn: ≤50 mg/kg
Na: ≤50 mg/kg
Ni: ≤50 mg/kg
Pb: ≤10 mg/kg
Zn: ≤20 mg/kg

SMILES string

O.O.O.O.Cl[Fe]Cl

InChI

1S/2ClH.Fe.4H2O/h2*1H;;4*1H2/q;;+2;;;;/p-2

InChI key

WSSMOXHYUFMBLS-UHFFFAOYSA-L

Looking for similar products? Visit Product Comparison Guide

Application

Iron(II) chloride tetrahydrate can be used as a catalyst in the:
  • Solvent-free Ritter reaction of nitriles with various halohydrocarbons to synthesize N-substituted amides.
  • Synthesis of ketones via indirect hydration of alkynes.
  • Stereoselective reduction of α, β-unsaturated carbonyl compounds to the corresponding saturated alcohols in the presence of lithium and DTBB.
It can also be used as a precursor to prepare iron-bisphosphine complex, which can be used to catalyze Kumada­-Tamao-­Corriu coupling.

Pictograms

CorrosionExclamation mark
GHS05,GHS07

Signal Word

Danger

Hazard Statements

H302,H318

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

does not flash

Flash Point(C)

does not flash

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’.

Already Own This Product?

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

Visit the Document Library

Maren Depke et al.
Cytometry. Part A : the journal of the International Society for Analytical Cytology, 85(2), 140-150 (2013-12-19)
Throughout the world, infections caused by bacteria such as Staphylococcus aureus are a major cause of morbidity and mortality. In order to gain some understanding of the complicated physiological link between host and pathogen, modern techniques such as confocal microscopy
Hui Wei et al.
Molecules (Basel, Switzerland), 25(6) (2020-04-05)
Ferrous ion co-catalyst enhancement of dilute-acid (DA) pretreatment of biomass is a promising technology for increasing the release of sugars from recalcitrant lignocellulosic biomass. However, due to the reductive status of ferrous ion and its susceptibility to oxidation with exposure
The crystal structure of iron (II) chloride tetrahydrate.
Penfold BR and Grigor JA.
Acta Crystallographica, 12(11), 850854-850854 (1959)
Electron microscopy study of CVT grown Fe-sulphides.
Zavasnik J and Recnik A.
Journal of Crystal Growth, 367, 18-23 (2013)
Sofia Tresintsi et al.
Water research, 46(16), 5255-5267 (2012-07-25)
Various iron oxy-hydroxides were synthesized in a continuous flow kilogram-scale production reactor through the precipitation of FeSO(4) and FeCl(2) in the pH range 3-12 under intense oxidative conditions to serve as arsenic adsorbents. The selection of the optimum adsorbent and
View All Related Papers

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