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60818

Sigma-Aldrich

Cobalt(II) chloride

purum p.a., anhydrous, ≥98.0% (KT)

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Synonym(s):
Cobalt dichloride, Cobalt muriate, Cobaltous chloride, Dichlorocobalt
Linear Formula:
CoCl2
CAS Number:
Molecular Weight:
129.84
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

vapor pressure

40 mmHg ( 0 °C)

Quality Level

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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This Item
23269640933231277
vibrant-m

60818

Cobalt(II) chloride

-
vibrant-m

232696

Cobalt(II) chloride

-
vibrant-m

409332

Cobalt(II) chloride

-
vibrant-m

31277

Cobalt(II) chloride hexahydrate

Essential Grade
assay

≥98.0% (KT)

assay

97%

assay

99.995% trace metals basis

assay

98-102%

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

200

grade

purum p.a.

grade

-

grade

-

grade

-

impurities

≤2% water

impurities

-

impurities

≤15.0 ppm Trace Metal Analysis

impurities

≤0.01% water-insoluble matter

anion traces

sulfate (SO42-): ≤50 mg/kg

anion traces

-

anion traces

-

anion traces

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

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.

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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