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Sigma-Aldrich

Cobalt(II) chloride hexahydrate

puriss. p.a., ACS reagent, reag. Ph. Eur., 98-102%

Sinónimos:

Cobaltous chloride hexahydrate

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About This Item

Fórmula lineal:
CoCl2 · 6H2O
Número de CAS:
7791-13-1
Peso molecular:
237.93
EC Number:
231-589-4
MDL number:
MFCD00149652
UNSPSC Code:
12352302
PubChem Substance ID:
329753717
NACRES:
NB.24

grade

ACS reagent
puriss. p.a.

agency

reag. Ph. Eur.

vapor pressure

40 mmHg ( 0 °C)

assay

98-102%

form

solid

impurities

≤0.01% water-insoluble matter

anion traces

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

cation traces

Ca: ≤50 mg/kg
Cu: ≤20 mg/kg
Fe: ≤50 mg/kg
K: ≤50 mg/kg
Mg: ≤10 mg/kg
Mn: ≤50 mg/kg
Na: ≤100 mg/kg
Ni: ≤500 mg/kg
Pb: ≤5 mg/kg
Zn: ≤25 mg/kg

SMILES string

O.O.O.O.O.O.Cl[Co]Cl

InChI

1S/2ClH.Co.6H2O/h2*1H;;6*1H2/q;;+2;;;;;;/p-2

InChI key

GFHNAMRJFCEERV-UHFFFAOYSA-L

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General description

Cobalt(II) chloride hexahydrate is a hydrated form of cobalt chloride. It is used as a catalyst for various organic reactions such as acetylation and tosylation of alcohols, chemoselective reduction of carboxylic esters, and condensation reactions.

Application

Cobalt(II) chloride hexahydrate can be used as a catalyst:      
  • To convert various aldoximes into corresponding nitriles in the presence of an inorganic base.      
  • To prepare organic-inorganic polyvinylidene fluoride nanofiber composites (PVDF/CoCl2) for the production of pure hydrogen production from NaBH4.

It can also be used as a cobalt precursor to synthesize nickel-cobalt-based binary metal phosphide (NiCoP) hollow spheres, which are used for electrocatalysis and energy storage (supercapacitor) applications.

signalword

Danger

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B Inhalation - Eye Dam. 1 - Muta. 2 - Repr. 1B - Resp. Sens. 1 - Skin Sens. 1

Storage Class

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

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