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202185

Sigma-Aldrich

Cobalt(II) chloride hexahydrate

reagent grade

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Synonym(s):
Cobaltous chloride hexahydrate
Linear Formula:
CoCl2 · 6H2O
CAS Number:
Molecular Weight:
237.93
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

grade

reagent grade

Quality Level

vapor pressure

40 mmHg ( 0 °C)

form

crystals or chunks

concentration

24.0-25.5% (EDTA titration)

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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This Item
31277255599C8661
Cobalt(II) chloride hexahydrate reagent grade

202185

Cobalt(II) chloride hexahydrate

-
Cobalt(II) chloride hexahydrate puriss. p.a., ACS reagent, reag. Ph. Eur., 98-102%

31277

Cobalt(II) chloride hexahydrate

Essential Grade
Cobalt(II) chloride hexahydrate ACS reagent, 98%

255599

Cobalt(II) chloride hexahydrate

-
Cobalt(II) chloride hexahydrate BioReagent, suitable for cell culture, suitable for insect cell culture

C8661

Cobalt(II) chloride hexahydrate

Essential+ Grade
Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

300

grade

reagent grade

grade

ACS reagent, puriss. p.a.

grade

ACS reagent

grade

-

vapor pressure

40 mmHg ( 0 °C)

vapor pressure

40 mmHg ( 0 °C)

vapor pressure

40 mmHg ( 0 °C)

vapor pressure

40 mmHg ( 0 °C)

concentration

24.0-25.5% (EDTA titration)

concentration

-

concentration

-

concentration

-

General description

Cobalt(II) chloride hexahydrate has a cobalt ion surrounded by a tetragonal arrangement of chloride ligands. Four water molecules occupy a square plane about cobalt while chloride ions occupy axial positions. Its crystals belong to the monoclinic lattice system.

Application

Cobalt(II) chloride hexahydrate may be used in the following studies:
  • For the in-situ synthesis of nickel(0) and cobalt(0) nanoclusters stabilized by poly(4-styrene sulfonic acid-co-maleic acid).
  • Preparation of polyvinylidene fluoride (PVDF)-cobalt (II) chloride hexahydrate nanofiber composites, via electrospinning method.
  • As catalyst for the synthesis of 2-arylbenzimidazole.
  • Acetylation of alcohols with carboxylic acids to form the corresponding acylated products.
  • Tosylation of aliphatic and aromatic alcohols with tosylic acid.

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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Cobalt (II) catalyzed tosylation of alcohols with p-toluenesulfonic acid.
Velusamy S, et al.
Tetrahedron Letters, 45(1), 203-205 (2004)
Crystal spectra of cobalt (II) chloride hexahydrate
Joy HW and Fogel N
The Journal of Physical Chemistry, 79(4), 345-349 (1975)
Cobalt (II)-catalyzed direct acetylation of alcohols with acetic acid.
Velusamy S, et al.
Tetrahedron, 61(8), 2011-2015 (2005)
Electronic absorption spectra of tetragonal and pseudotetragonal cobalt (II). II. Cobalt chloride hexahydrate and cobalt chloride hexahydrate-d12.
Ferguson J and Wood TE.
Inorganic Chemistry, 14(1), 184-189 (1975)
Water soluble nickel (0) and cobalt (0) nanoclusters stabilized by poly (4-styrenesulfonic acid-co-maleic acid): highly active, durable and cost effective catalysts in hydrogen generation from the hydrolysis of ammonia borane.
Metin O and Ozkar S.
International Journal of Hydrogen Energy, 36(2), 1424-1432 (2011)

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