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60832

Sigma-Aldrich

Cobalt(II) nitrate hexahydrate

puriss. p.a., ACS reagent, Ni ≤0.001%, ≥99.0% (KT)

Synonym(s):

Cobaltous nitrate, Cobaltous nitrate hexahydrate, Nitric acid, cobalt(II) salt

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About This Item

Linear Formula:
Co(NO3)2 · 6H2O
CAS Number:
10026-22-9
Molecular Weight:
291.03
MDL number:
MFCD00149647
UNSPSC Code:
12352300
PubChem Substance ID:
329759242
NACRES:
NB.24
form:
powder or crystals

grade

ACS reagent
puriss. p.a.

Assay

≥99.0% (KT)

form

powder or crystals

reaction suitability

reagent type: catalyst
core: cobalt

pH

4 (20 °C, 100 g/L)

mp

55 °C (lit.)

anion traces

chloride (Cl-): ≤10 mg/kg
sulfate (SO42-): ≤50 mg/kg

cation traces

Ca: ≤10 mg/kg
Cd: ≤10 mg/kg
Cr: ≤50 mg/kg
Cu: ≤10 mg/kg
Fe: ≤10 mg/kg
K: ≤100 mg/kg
Mg: ≤10 mg/kg
Mn: ≤20 mg/kg
NH4+: ≤500 mg/kg
Na: ≤100 mg/kg
Ni: ≤10 mg/kg
Pb: ≤10 mg/kg
Zn: ≤50 mg/kg

SMILES string

O.O.O.O.O.O.[Co++].[O-][N+]([O-])=O.[O-][N+]([O-])=O

InChI

1S/Co.2NO3.6H2O/c;2*2-1(3)4;;;;;;/h;;;6*1H2/q+2;2*-1;;;;;;

InChI key

QGUAJWGNOXCYJF-UHFFFAOYSA-N

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General description

Cobalt(II) nitrate hexahydrate (Co(NO3)2·6H2O) is the hydrated cobalt salt. Its step-wise thermal degradation has been investigated. It affords anhydrous cobalt(II)nitrate as decomposition product.[1]

Application

Cobalt(II) nitrate hexahydrate may be used in the preparation of the following complexes (bz = benzimidazole, abz = albendazole, ntb = tris(2-benzimidazolylmethyl)amine, 2ab = 2-aminobenzimidazole):
  • dinitratobis-(triphenylarsine oxide)-cobalt(II) complex[2]
  • [Co(bz)2(NO3)2].0.5EtOH[3]
  • [Co(abz)2(NO3)2].2.5H2O[3]
  • [Co(ntb)NO3]NO3.H2O[3]

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B Inhalation - Eye Dam. 1 - Muta. 2 - Ox. Sol. 2 - Repr. 1B - Resp. Sens. 1 - Skin Sens. 1 - STOT RE 2 Inhalation

Target Organs

Lungs

Storage Class Code

5.1B - Oxidizing hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

EU REACH SVHC Candidate List

CAS No.

EU REACH Annex XVII (Restriction List)

CAS No.

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Certificates of Analysis (COA)

Lot/Batch Number
BCBZ5069
BCBZ4288

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Some Phosphine Oxide and Arsine Oxide Complexes of Cobalt (II) Nitrate.
Cotton FA, et al.
Inorganic Chemistry, 2(6), 1162-1165 (1963)
Horacio López-Sandoval et al.
Journal of inorganic biochemistry, 102(5-6), 1267-1276 (2008-02-29)
In this work we present the synthesis, structural and spectroscopic characterisation of a series of cobalt(II) and zinc(II) coordination compounds with benzimidazole (bz) and its 2-benzimidazole derivatives: 2-aminobenzimidazole (2ab), albendazole (abz) and tris(2-benzimidazolylmethyl)amine (ntb). The compounds were evaluated for their
Thermal decomposition of cobalt nitrato compounds: Preparation of anhydrous cobalt (II) nitrate and its characterisation by Infrared and Raman spectra.
Ehrhardt C, et al.
Thermochimica Acta, 432(1), 36-40 (2005)
William Buchmann et al.
Journal of mass spectrometry : JMS, 42(4), 517-526 (2007-02-27)
The electronebulization of a cobalt(II)/cysteine(Cys) mixture in water/methanol (50/50) produced mainly cobalt-cationized species. Three main groups of the Co-cationized species can be distinguished in the ESI-MS spectrum: (1) the cobalt complexes including the cysteine amino acid only (they can be
Massimiliano Aschi et al.
Journal of mass spectrometry : JMS, 44(7), 1038-1046 (2009-04-01)
The nature of the ionic species, formed by electrospray ionization (ESI) of Co(NO3)2/CH3OH solutions with a pair of aminoalcohols W and Y, has been investigated by mass spectrometric and computational methods. Collision induced dissociation (CID) of ions, formally corresponding to
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