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Merck
CN

403024

Cobalt(II) acetate tetrahydrate

ACS reagent, ≥98.0%

Synonym(s):

Cobaltous acetate tetrahydrate

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About This Item

Linear Formula:
(CH3COO)2Co · 4H2O
CAS Number:
6147-53-1
Molecular Weight:
249.08
UNSPSC Code:
12352103
NACRES:
NB.24
PubChem Substance ID:
329755977
EC Number:
200-755-8
Beilstein/REAXYS Number:
3731397
MDL number:
MFCD00149569
Assay:
≥98.0%
98.0-102.0% (ACS specification)
Grade:
ACS reagent
Form:
crystalline powder
granular

Key Documents

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Product Name

Cobalt(II) acetate tetrahydrate, ACS reagent, ≥98.0%

InChI key

ZBYYWKJVSFHYJL-UHFFFAOYSA-L

InChI

1S/2C2H4O2.Co.4H2O/c2*1-2(3)4;;;;;/h2*1H3,(H,3,4);;4*1H2/q;;+2;;;;/p-2

SMILES string

[H]O[H].[H]O[H].[H]O[H].[H]O[H].CC(=O)O[Co]OC(C)=O

grade

ACS reagent

assay

≥98.0%
98.0-102.0% (ACS specification)

form

crystalline powder
granular

reaction suitability

reagent type: catalyst
core: cobalt

impurities

≤0.01% insolubles

anion traces

chloride (Cl-): ≤0.002%
nitrate (NO3-): ≤0.01%
sulfate (SO42-): ≤0.005%

cation traces

Ca: ≤0.005%
Cu: ≤0.002%
Fe: ≤0.001%
K: ≤0.01%
Mg: ≤0.005%
Na: ≤0.05%
Ni: ≤0.1%
Pb: ≤0.001%
Zn: ≤0.01%

Quality Level

200

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Application

Cobalt(II) acetate tetrahydrate may be used in the synthesis of the following:
  • cobalt nanoparticles
  • cobalt(II)–aminophenyltetrazolate coordination polymer
  • tricobalt complexes with mixed μ-acetato and μ-pyrazolato ligands

signalword

Danger

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B Inhalation - Eye Irrit. 2 - Muta. 2 - Repr. 1B - Resp. Sens. 1 - Skin Sens. 1

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk

WGK 3

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Certificates of Analysis (COA)

Lot/Batch Number
MKCZ9011
MKCV9682
MKCQ8288
MKCQ4239
MKCK0871

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Cobalt nanoparticles synthesis from Co(CH3COO)2 by thermal decomposition.
Shao H, et al.
Journal of magnetism and magnetic materials, 304(1), 28-30 (2006)
Eagleson M
Concise Encyclopedia Chemistry, 241-241 (1994)
Mechanism of thermal decomposition of cobalt acetate tetrahydrate.
Wanjun T and Donghua C.
Chemical Papers, 61(4), 329-332 (2007)
A synthetic strategy for a new series of oxo-centered tricobalt complexes with mixed bridging ligands of acetate and pyrazolate anions.
Yoshida J, et al.
Dalton Transactions, 42(7), 2406-2413 (2013)
Tiffany M Smith et al.
Dalton transactions (Cambridge, England : 2003), 43(19), 7263-7268 (2014-04-01)
The hydrothermal reaction of cobalt(II) acetate tetrahydrate, 4-aminophenyl tetrazole and water at 135 °C for 48 hours provided orange crystals of [Co3(OH)2(H2O)2(aptet)4] (1) (aptet = 4-aminophenyltetrazolate). The three-dimensional structure of compound 1 is constructed from chains of corner- and edge-sharing
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