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230375

Sigma-Aldrich

Cobalt(II) nitrate hexahydrate

reagent grade, 98%

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Synonym(s):
Cobaltous nitrate, Cobaltous nitrate hexahydrate, Nitric acid, cobalt(II) salt
Linear Formula:
Co(NO3)2 · 6H2O
CAS Number:
Molecular Weight:
291.03
MDL number:
PubChem Substance ID:
NACRES:
NA.55

grade

reagent grade

Quality Level

assay

98%

form

flakes
powder, crystals or chunks

reaction suitability

reagent type: catalyst
core: cobalt

pH

4 (20 °C, 100 g/L)

mp

55 °C (lit.)

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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This Item
2392672031061.02554
Cobalt(II) nitrate hexahydrate reagent grade, 98%

230375

Cobalt(II) nitrate hexahydrate

Essential Grade
Cobalt(II) nitrate hexahydrate ACS reagent, ≥98%

239267

Cobalt(II) nitrate hexahydrate

Essential Grade
Cobalt(II) nitrate hexahydrate 99.999% trace metals basis

203106

Cobalt(II) nitrate hexahydrate

-
Cobalt(II) nitrate hexahydrate for analysis (max. 0.001% Ni) EMSURE® ACS,Reag. Ph Eur

1.02554

Cobalt(II) nitrate hexahydrate

-
assay

98%

assay

≥98%, 98.0-102.0%

assay

99.999% trace metals basis

assay

99.0-102.0% (Co(NO3)2.6H2O basis, complexometric)

Quality Level

100

Quality Level

200

Quality Level

100

Quality Level

300

grade

reagent grade

grade

ACS reagent

grade

-

grade

ACS reagent

mp

55 °C (lit.)

mp

55 °C (lit.)

mp

55 °C (lit.)

mp

57 °C

pH

4 (20 °C, 100 g/L)

pH

4 (20 °C, 100 g/L)

pH

-

pH

4.0 (20 °C, 100 g/L in H2O)

General description

Cobalt (II) nitrate hexahydrate is a simple, inexpensive and readily available cobalt precursor to develop cobalt-based catalyst for specific organic reactions.

Application

Cobalt (II) nitrate hexahydrate is used as a catalyst:
  • In the synthesis of 5-carboxanilide-dihydropyrimidinone derivatives from acetoacetanilide, aldehyde, and urea/thiourea by condensation reaction.
  • In the multi-component synthesis of 2-amino-3- cyanopyridine and pyranopyrazole derivatives.
  • Cobalt (II) nitrate hexahydrate can also be used:,In the preparation of nano-Co3O4 by direct thermal decomposition, that are used in electrochemical water splitting and electrochemical sensors.

signalword

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

5.1B - Oxidizing hazardous materials

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


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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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