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Merck
CN

769495

Cobalt(II) chloride hexahydrate

≥97%

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
NACRES:
NA.23
PubChem Substance ID:
329767444
UNSPSC Code:
12352302
EC Number:
231-589-4
MDL number:
MFCD00149652
Assay:
≥97%
97.0-102.0% (KT)
Form:
solid

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Product Name

Cobalt(II) chloride hexahydrate, ≥97%

InChI key

GFHNAMRJFCEERV-UHFFFAOYSA-L

InChI

1S/2ClH.Co.6H2O/h2*1H;;6*1H2/q;;+2;;;;;;/p-2

SMILES string

O.O.O.O.O.O.Cl[Co]Cl

vapor pressure

40 mmHg ( 0 °C)

assay

≥97%
97.0-102.0% (KT)

form

solid

reaction suitability

core: cobalt

anion traces

nitrate (NO3-): ≤0.01%
sulfate (SO42-): ≤0.007%

cation traces

Fe: ≤0.005%
Ni: ≤0.15%
Pb: ≤0.002%
Zn: ≤0.05%

application(s)

battery precursors
catalysts
material synthesis precursor

Quality Level

100

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Analysis Note

Substances not precipitated by ammonium sulfide (as sulphates) ≤ 0.3 %

Application

Cobalt(II) chloride hexahydrate can be used as:      
  • An additive to the electron transport layer (ETL) in perovskite solar cells to improve their performance, particularly by reducing energy losses and increasing the open-circuit voltage.      
  • A cobalt source for doping ZnO nanostructures. The incorporation of cobalt ions into the ZnO matrix is crucial for modifying its electronic and optical properties.      
  • A precursor to modify cobalt metal-organic framework (Co-MOF) derived carbon microspheres for application as anode materials in lithium-ion batteries.

General description

Cobalt(II) chloride hexahydrate, a hydrated form of cobalt chloride, is employed in electroplating and catalyst preparation. It serves as a precursor for synthesizing electrode materials for lithium-ion batteries and acts as a catalyst in a range of organic reactions, including acetylation, tosylation of alcohols, and condensation reactions.

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

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
BCCP0931
BCCM4951
BCCL6888
BCCK7839
BCCH5531

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Hyeohn Kim et al.
ACS nano, 15(1), 979-988 (2020-12-18)
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Rasmussen, FE., et al.
Sensors and actuators A, Physical, 92, 242-248 (2001)
One-step synthesis of cobalt and nitrogen co-doped carbon nanotubes and their catalytic activity for the oxygen reduction reaction
Fu, S., et al.
Journal of Material Chemistry A, 3, 12718-12722 (2015)
Excellent lithium ion storage property of porous MnCo2O4 nanorods
Zeng, P., et al.
Royal Society of Chemistry Advances, 6, 23074-23084 (2016)
Sebastian Klemenz et al.
ChemSusChem, 11(18), 3150-3156 (2018-07-27)
High-performance catalysts for the oxygen-evolution reaction in water electrolysis are usually based on expensive and rare elements. Herein, mixed-metal borides are shown to be competitive with established electrocatalysts like noble metal oxides and other transition-metal(oxide)-based catalysts. Iron incorporation into nanoscale
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