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Sigma-Aldrich

Cobalt(II) nitrate hexahydrate

99.999% trace metals basis

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:
12352302
PubChem Substance ID:
24852146
NACRES:
NA.23

Assay

99.999% trace metals basis

form

crystals and lumps

impurities

≤15.0 ppm Trace Metal Analysis

mp

55 °C (lit.)

application(s)

battery manufacturing

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 is an inorganic compound soluble in water. It is used as a precursor for the synthesis of cobalt-containing ceramic materials, such as cobalt ferrites and cobalt-doped titanium dioxide, which have magnetic, electrical, and photocatalytic properties. In addition, it finds use in electrochemical applications, such as in lithium-ion battery cathodes and fuel cell catalysts, due to the redox activity.

Application

Cobalt(II) nitrate hexahydrate can be:      
  • Used as a precursor to synthesize nano-Co3O4 via direct thermal decomposition method for electrochemical water oxidation applications      
  • Used as a precursor to synthesize single-crystalline Co3O4 powders with controllable morphology for lithium-ion battery applications.      cobalt-containing nanomaterials, such as nano-Co3O4, with controlled size, shape, and morphology via sol-gel method.      
  • As a vital precursor to generate nickel-rich cathode materials (NMC, NCA) for lithium-ion batteries using co-precipitation process because of its simplicity, ease of scale-up, and ability to produce a homogeneous structure at the particle scale.

Cobalt(II) nitrate hexahydrate can be used as a:      
  • A starting material in the preparation of Co-based nanomaterials and Co complexes.      
  • A catalyst to synthesize 5-carboxanilide-dihydropyrimidinone derivatives via a three-component condensation reaction.     
  • A dopant to prepare LaCr1−xCoxO3 solid-solution ceramics for high temperature applications.

Features and Benefits

  • High purity with trace metal analysis (=< 15 ppm) for 32 elements, suitable for batteries.     
  • High water solubility ideal for synthesizing composites for various applications.
  • Low ppm levels of metal ions including Al, K, Na, Mg, Cu, Co, etc.

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

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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Yonghoon Hong et al.
Scientific reports, 8(1), 7469-7469 (2018-05-12)
We have developed a highly stable and magnetically recyclable yolk-shell nanocatalyst for catalytic reduction of nitroaromatics. This nanocatalyst is composed of a ~13 nm Au nanoparticle encapsulated in a hollow mesoporous carbon (hmC) shell with a diameter of ~120 nm and a
N G Al-Tawil et al.
Acta dermato-venereologica, 64(3), 203-208 (1984-01-01)
Peripheral blood lymphocytes from 45 patients with a positive patch test to cobalt chloride (CoCl2) and 37 controls were stimulated with various concentrations of CoCl2 and/or cobalt sulphate (CoSO4) or cobalt nitrate (Co(NO3)2) or cobalt acetate [CH3COO)2Co) for various days
A time-resolved in situ quick-XAS investigation of thermal activation of Fischer-Tropsch silica-supported cobalt catalysts.
Jingping Hong et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 18(10), 2802-2805 (2012-02-07)
H H Chen et al.
Nucleic acids research, 10(11), 3561-3571 (1982-06-11)
Transient electric dichroism measurements have been used to observe the rotational relaxation times of 145 base pair fragments of poly (dGm5dC) and random sequence DNA to solution. From these the lengths of the fragments are calculated and the interbase pair
J M Llobet et al.
Revista espanola de fisiologia, 39(3), 291-298 (1983-09-01)
The acute toxicities of chloride, acetate, cobalt nitrate and cobalt sulphate (II) were investigated in rats. The values obtained for the LD50 (7 days) were 133, 194, 198 and 279 mg of Co/kg respectively, when the salts were given orally.
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