Skip to Content
Merck
All Photos(2)

Key Documents

935719

Sigma-Aldrich

Cobalt(II) nitrate hexahydrate

greener alternative

≥99.9% trace metals basis

Synonym(s):

Cobalt Nitrate Hexahydrate, Cobalt dinitrate hexahydrate, Cobaltous nitrate, Cobaltous nitrate hexahydrate, Nitric acid, cobalt(II) salt

Sign Into View Organizational & Contract Pricing


About This Item

Linear Formula:
Co(NO3)2 · 6H2O
CAS Number:
Molecular Weight:
291.03
MDL number:
UNSPSC Code:
12352302
NACRES:
NA.21

Quality Level

Assay

≥99.9% trace metals basis

form

powder, crystals or granules (Chunks)

greener alternative product characteristics

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

sustainability

Greener Alternative Product

color

faint red to very dark red

mp

55 °C (lit.)

solubility

soluble, clear to slightly hazy

greener alternative category

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

Looking for similar products? Visit Product Comparison Guide

General description

Cobalt(II)nitrate hexahydrate is red solid which is soluble in water and polar solvents. It is also known as hexaaquacobalt(II) nitrate consists of [Co(OH2)6]2+ and [NO3]ions.
We are committed to bringing you Greener Alternative Products, which belongs to one of the four categories of greener alternatives. This product has been enhanced for energy efficency. Click here for more information.

Application

Cobalt(II) nitrate hexahydrate, has been widely used for the synthesis of Cobalt oxide nanoparticles and cobalt containing compounds. For Example:Cobalt(II) nitrate hexahydrate is used to synthesize cobalt-cobalt oxide/N-doped carbon hybrids, which are then used as hydrogen evolution reaction (HER) or superior oxygen evolution reaction (OER) catalysts in water splitting.

It has also been used as a primary precursor material in the synthesis of Co3O4 nanocrystals in various shapes such as nanosheets, nanocubes, and nanobelts as a catalyst for methane combustion.

Furthermore, the reaction of Cobalt(II) nitrate hexahydrate with Nickel(II) nitrate hexahydrate produces Nickel-cobalt layered double hydroxide nanosheets in presence of methanol and CTAB, which is used as a high-performance electrocatalyst for oxygen evolution.

In addition, Cobalt(II) nitrate hexahydrate precursor powder is calcined to produce Co3O4 nanotubes using the template synthesis method. The Co3O4 nano-tubes, nanorods, and nanoparticles that have been created are used in gas sensing systems and as anode materials for Li-ion batteries

Cobalt hydroxide and layered double hydroxides (CH@LDH) have been synthesized using Cobalt(II)nitrate hexahydrate as a sulfur host for lithium–sulfur batteries.

It is well studied that, Cobalt(II) nitrate hexahydrate is used as a heterogeneous catalyst Co/SiO2 with Silica support, for Fischer−Tropsch Synthesis.

Cobalt(II) Nitrate Hexahydrate is also used as a catalyst for the synthesis of 5-Carboxanilide-dihydropyrimidinone derivatives by the condensation reaction of acetoacetanilide, aldehyde and urea/thiourea.

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


Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Nickel?cobalt layered double hydroxide nanosheets as high-performance electrocatalyst for oxygen evolution reaction
Jiang J, et al.
Journal of Power Sources, 278, 445-451 (2015)
Fundamentals of melt infiltration for the preparation of supported metal catalysts. The case of Co/SiO2 for Fischer-Tropsch synthesis
Eggenhuisen T M, et al.
Journal of the American Chemical Society, 132, 18318-18325 (2010)
Selective catalytic reduction of nitrogen oxides by ammonia over Co3O4 nanocrystals with different shapes
Meng B, et al.
Applied Catalysis. B, Environmental, 129, 491-500 (2013)
Double-Shelled Nanocages with Cobalt Hydroxide Inner Shell and Layered Double Hydroxides Outer Shell as High-Efficiency Polysulfide Mediator for Lithium-Sulfur Batteries
Zhang J, et al.
Angewandte Chemie (International ed. in English), 55, 3982-3986 (2016)
Co3O4 Nanomaterials in Lithium-Ion Batteries and Gas Sensors
Li W Y, et al.
Advanced Functional Materials , 15, 851-857 (2005)

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service