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60818

Sigma-Aldrich

Cobalt(II) chloride

purum p.a., anhydrous, ≥98.0% (KT)

Synonym(s):

Cobalt dichloride, Cobalt muriate, Cobaltous chloride, Dichlorocobalt

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About This Item

Linear Formula:
CoCl2
CAS Number:
Molecular Weight:
129.84
EC Number:
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.21

vapor pressure

40 mmHg ( 0 °C)

grade

purum p.a.

Assay

≥98.0% (KT)

form

powder

impurities

≤2% water

mp

724 °C (lit.)

anion traces

sulfate (SO42-): ≤50 mg/kg

cation traces

Ca: ≤50 mg/kg
Cd: ≤50 mg/kg
Cu: ≤50 mg/kg
Fe: ≤50 mg/kg
K: ≤100 mg/kg
Na: ≤200 mg/kg
Ni: ≤1000 mg/kg
Pb: ≤50 mg/kg
Zn: ≤50 mg/kg

SMILES string

Cl[Co]Cl

InChI

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

InChI key

GVPFVAHMJGGAJG-UHFFFAOYSA-L

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General description

Cobalt(II) chloride is an anhydrous cobalt salt. Cobalt(II) chloride participates in the synthesis of various esters in the presence of acetonitrile.

Application

Cobalt(II) chloride may be employed as a catalyst in the following studies:
  • Acylation of various alcohols (primary and secondary).
  • Acylation of various hydroxyl compounds (high selectivity).
  • Regioselective ring-opening reaction of oxiranes.
  • Coupling reactions of anhydrides or acid chlorides with thiols.
  • Protection of aldehydes, via chemoselective dithioacetalization reaction.
  • Solvent-free synthesis of β-enaminones and β-enamino esters.
The vapor-phase co-reductions with other metal halides by hydrogen results in finely divided intermetallics with applications as structural materials or compounds with useful thermoelectric, magnetic, and oxidation-resistance properties.

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


Certificates of Analysis (COA)

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