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Sigma-Aldrich

Iron(II) chloride

greener alternative

98%

Synonym(s):

Ferrous chloride, Iron dichloride

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About This Item

Linear Formula:
FeCl2
CAS Number:
7758-94-3
Molecular Weight:
126.75
EC Number:
231-843-4
MDL number:
MFCD00011004
UNSPSC Code:
12161600
PubChem Substance ID:
24863176
NACRES:
NA.22

assay

98%

form

powder

reaction suitability

core: iron
reagent type: catalyst
reaction type: Atom Transfer Radical Polymerization (ATRP)

greener alternative product characteristics

Catalysis
Learn more about the Principles of Green Chemistry.

sustainability

Greener Alternative Product

mp

677 °C (lit.)

density

3.16 g/mL at 25 °C (lit.)

greener alternative category

, Aligned

SMILES string

Cl[Fe]Cl

InChI

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

InChI key

NMCUIPGRVMDVDB-UHFFFAOYSA-L

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General description

We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Green Chemistry. The iron catalysts are known to be inexpensive and environmentally benign. Click here for more information.

Application

Iron(II) chloride can be used to catalyze:
  • The preparation of Grignard compounds, such as 1-naphthylmagnesium chloride.
  • The selective oxidation of 2,4,6-trimethylphenol (2,4,6-TMP) to 3,5-dimethyl-4-hydroxybenzaldehyde (DMHB) in the presence of acetoxime.
  • Raney-type catalysts modified with FeCl2 show enhanced selective hydrogenation of an α,β-unsaturated aldehyde to an unsaturated alcohol.

pictograms

CorrosionExclamation mark
GHS05,GHS07

signalword

Danger

hcodes

H302,H318

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1

Storage Class

8B - Non-combustible corrosive hazardous materials

wgk_germany

WGK 1

flash_point_f

does not flash

flash_point_c

does not flash

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

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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Transition metal catalyzed preparation of Grignard compounds.
Bogdanovic B, et al.
Angewandte Chemie (International Edition in English), 39(24), 4610-4612 (2000)
2, 4, 6-Trimethylphenol oxidation with ferrous chloride catalyst: Effect of acetoxime addition.
Li K, et al.
J. Mol. Catal. A: Chem., 241(1-2), 72-78 (2005)
Liquid-phase Selective Hydrogenation of an Aliphatic ?, ?-Unsaturated Aldehyde over Raney Cobalt Catalyst Modified with Ferrous Chloride.
Hotta K, et al.
Bulletin of the Chemical Society of Japan, 42(5), 1447-1449 (1969)
Gustavo A Molina et al.
Polymers, 12(4) (2020-04-15)
In this study, new polyurethanes (PUs) were prepared by using inulin and polycaprolactone as polyols. Their structure and morphology were determined by Fourier transform infrared spectroscopy (FTIR), Raman dispersive spectroscopy, Nuclear magnetic resonance spectroscopy (1H NMR and 13C NMR), and
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
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