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31277

Sigma-Aldrich

Cobalt(II) chloride hexahydrate

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

Synonym(s):

Cobaltous chloride hexahydrate

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About This Item

Linear Formula:
CoCl2 · 6H2O
CAS Number:
7791-13-1
Molecular Weight:
237.93
EC Number:
231-589-4
MDL number:
MFCD00149652
UNSPSC Code:
12352300
PubChem Substance ID:
329753717
NACRES:
NB.24

grade

ACS reagent
puriss. p.a.

Quality Level

200

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.

Signal Word

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 Code

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

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

EU REACH SVHC Candidate List

CAS No.

EU REACH Annex XVII (Restriction List)

CAS No.

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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