44939

Iron(II) chloride tetrahydrate

puriss. p.a., ≥99.0% (RT)

• Synonym(s): Ferrous chloride tetrahydrate
• 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

Properties

• vapor pressure: 10 mmHg ( 693 °C)
• Quality Level: 200
• 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 (SO₄^2-): ≤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

Description

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.

Safety Information

• Pictograms: GHS05,GHS07
• Signal Word: Danger
• Hazard Statements: H302,H318
• Precautionary Statements: P264 - P270 - P280 - P301 + P312 - P305 + P351 + P338 - P501
• 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