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Merck
CN

939935

Iron(II) chloride anhydrous

greener alternative

≥99.99% trace metals basis

Synonym(s):

Iron(II) chloride, Ferrous chloride, Iron dichloride

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About This Item

Linear Formula:
FeCl2
CAS Number:
7758-94-3
Molecular Weight:
126.75
NACRES:
NA.21
MDL number:
MFCD00011004
Assay:
≥99.99% trace metals basis
Form:
powder or crystals
Solubility:
water: soluble

Key Documents

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InChI key

NMCUIPGRVMDVDB-UHFFFAOYSA-L

InChI

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

SMILES string

Cl[Fe]Cl

assay

≥99.99% trace metals basis

form

powder or crystals

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impurities

≤100 ppm (trace metals analysis)

mp

677 °C (lit.)

solubility

water: soluble

density

3.16 g/mL at 25 °C (lit.), 3.16 g/mL at 25 °C

anion traces

nitrate (NO3-): ≤20 ppm, sulfate (SO42-): ≤20 ppm

cation traces

Al: ≤10 ppm, B: ≤10 ppm, Ba: ≤10 ppm, Ca: ≤10 ppm, Co: ≤10 ppm, Cr: ≤10 ppm, Cu: ≤10 ppm, K: ≤10 ppm, Mg: ≤10 ppm, Mn: ≤10 ppm, Na: ≤10 ppm, Ni: ≤10 ppm, Si: ≤10 ppm, Ti: ≤10 ppm, Zn: ≤10 ppm

greener alternative category

Enabling

storage temp.

2-30°C

Quality Level

100

Related Categories

General description

Iron(II) chloride, also known as Ferrous chloride, is a solid with paramagnetic properties and a high melting point. In general, the synthesis of ferrous chloride involves the addition of iron powder to a solution of hydrochloric acid in methanol. This reaction results in the formation of the methanol solvate of dichloride. Subsequently, by subjecting the solvate to vacuum and heating it at around 160 °C, the solvate transforms into anhydrous ferrous chloride (FeCl2).Iron(II) chloride exhibits solubility in tetrahydrofuran (THF), making it a crucial precursor material for the synthesis of organometallic compounds.
We are committed to bringing you Greener Alternative Products, which belongs to one of the four categories of greener alternatives. This product belongs to an Enabling category, and is used in the electrodeposition of iron-aluminum alloys for thermoelectric applications, enhancing energy conversion efficiency. This process, utilizing molten salt systems, contributes to sustainable energy technologies and supports the development of advanced materials for eco-friendly energy storage and conversion. Click here for more information.

Application

Thermoelectric materials have gained attention for their ability to directly convert temperature differences into electrical energy. High purity Iron(II) chloride, is used as a precursor for the synthesize of Heusler-type iron-based thermoelectric materials, Fe2XAl (X = V, Ti, etc.) for the use in thermoelectric conversion. For example: the binary Fe-Al thin films are synthesized using electrodeposition method in Iron(II) chloride containig quaternary molten salts which exhibited p- or n-type thermoelectric conversion, depending on their composition. In addition, our high purity Iron(II) chloride, anhydrous is also used as a source of Iron to produce supercapacitor material such as heteroatom -dopped porus carbon. In the synthesis process, Iron(II) chloride is used as catalyst and template to shape the structure of the electrode with large specific surface area, high specific capacitance along with excellent rate capability and cycle stability due to the combination of in situ molten salt templating and chemical blowing.

Features and Benefits

- >=99.99% trace metals basis (purity)
- Anhydrous
- Low water content
- Low Oxygen content
-Perfect use for molten salt reactors

pictograms

CorrosionExclamation mark
GHS05,GHS07

signalword

Danger

hcodes

H302,H318

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1

Storage Class

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
0000428736
0000428736
0000378898
0000378898

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New polynuclear compounds of iron(II) chloride with oxygen donor ligands Part I. Fe4Cl8(THF)6: synthesis and a single crystal X-ray structure determination
Cotton F.Albert et. al.
Inorganica chimica acta, 179, 11?15-11?15 (1991)
Preparation of Fe?Al Binary Thermoelectric Conversion Films by Electrodeposition in AlCl3?NaCl?KCl?FeCl2 Quaternary Molten Salts
Hiroaki Yamamoto et al.
Journal of Electrochemical Science and Engineering, 168 (2021)
Biomass peach Gum-Derived Heteroatom-Doped porous carbon via in situ molten salt activation for High-Performance supercapacitors.
Liu, X. et. al.
Energy & Fuels, 35(23) (2021)
Iron(II) Halides
Winter et. al.
Inorganic Synthesis, 14 (1973)

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