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Merck
CN

44944

Iron(III) chloride hexahydrate

puriss. p.a., ACS reagent, crystallized, 98.0-102% (RT)

Synonym(s):

Ferric chloride hexahydrate

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About This Item

Linear Formula:
FeCl3 · 6H2O
CAS Number:
Molecular Weight:
270.30
NACRES:
NB.24
PubChem Substance ID:
UNSPSC Code:
12352302
EC Number:
231-729-4
MDL number:
Assay:
98.0-102% (RT)
Form:
crystals or chunks
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Quality Segment

vapor pressure

1 mmHg ( 194 °C)

grade

ACS reagent, puriss. p.a.

assay

98.0-102% (RT)

form

crystals or chunks

quality

crystallized

impurities

≤0.001% total nitrogen (N), ≤0.002% free chlorine (Cl), ≤0.01% phosphorous compounds (as PO4)

bp

280-285 °C (lit.)

mp

37 °C (lit.)

anion traces

nitrate (NO3-): ≤100 mg/kg, sulfate (SO42-): ≤50 mg/kg

cation traces

As: ≤5 mg/kg, Ca: ≤50 mg/kg, Cd: ≤10 mg/kg, Co: ≤50 mg/kg, Cr: ≤100 mg/kg, Cu: ≤20 mg/kg, Fe2+: ≤20 mg/kg, K: ≤50 mg/kg, Mg: ≤10 mg/kg, Mn: ≤1000 mg/kg, Na: ≤100 mg/kg, Ni: ≤50 mg/kg, Pb: ≤20 mg/kg, Zn: ≤20 mg/kg

SMILES string

O.O.O.O.O.O.Cl[Fe](Cl)Cl

InChI

1S/3ClH.Fe.6H2O/h3*1H;;6*1H2/q;;;+3;;;;;;/p-3

InChI key

NQXWGWZJXJUMQB-UHFFFAOYSA-K

General description

Iron(III) chloride hexahydrate can be obtained from crystallization of iron(III) chloride from water. Three-dimensional single-crystal X-ray-diffraction studies of its crystal structure suggest its crystals are monoclinic and C2h3-2/m space group.

Application

Iron(III) chloride hexahydrate (FeCl3.6H2O) may be employed as an oxidant for the following conversions:
  • Synthesis of 2-substituted 4(3H)-quinazolinones (yield = 77-93%).
  • Oxidation of 1,4-dihydropyridines (1,4-DHPs) to corresponding pyridines.
  • Oxidation of 4-isopropyl-1,4-DHP to dealkylated pyridine.


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pictograms

CorrosionExclamation mark

signalword

Danger

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1 - Skin Irrit. 2

Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable



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