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Merck
CN

60818

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:
7646-79-9
Molecular Weight:
129.84
NACRES:
NA.21
PubChem Substance ID:
329759237
UNSPSC Code:
12352302
EC Number:
231-589-4
MDL number:
MFCD00010938
Assay:
≥98.0% (KT)
Form:
powder

Key Documents

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Product Name

Cobalt(II) chloride, purum p.a., anhydrous, ≥98.0% (KT)

InChI key

GVPFVAHMJGGAJG-UHFFFAOYSA-L

InChI

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

SMILES string

Cl[Co]Cl

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

Quality Level

200

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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.

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.

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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

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

危险化学品
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Certificates of Analysis (COA)

Lot/Batch Number
BCCN9654
BCCM7993
BCCL6418
BCCK1588
BCCH9105

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Cobalt (II) chloride catalysed cleavage of ethers with acyl halides: Scope and mechanism.
Iqbal J and Srivastava RR.
Tetrahedron, 47(18), 3155-3170 (1991)
Cobalt (II) chloride-mediated synthesis of β-enamino compounds under solvent-free conditions.
Zhang ZH and Hu JY.
Journal of the Brazilian Chemical Society, 17(7), 1447-1451 (2006)
Cobalt (II) chloride catalyzed acylation of alcohols with acetic anhydride: scope and mechanism.
Iqbal J and Srivastava RR.
The Journal of Organic Chemistry, 57(7), 2001-2007 (1997)
An unusual chemoselectivity in cobalt (II) chloride catalysed cleavage of oxiranes with anilines: A highly regioselective synthesis of β-amino alcohols.
Iqbal J and Pandey A.
Tetrahedron Letters, 31(4), 575-576 (1990)
Xin Li et al.
Molecular and cellular biology, 40(8) (2020-01-29)
Fibrosis is recognized as the major pathological change in adipose tissue during the development of obesity. However, the detailed mechanisms governing the interactions between the fibrotic components and their modifiers remain largely unclear. Here, we reported that matrix metalloproteinase 14
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