C6768
Cobalt(II) sulfate heptahydrate
ReagentPlus®, ≥99%
Synonym(s):
Cobaltous sulfate heptahydrate
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About This Item
Linear Formula:
CoSO4 · 7H2O
CAS Number:
Molecular Weight:
281.10
NACRES:
NA.55
PubChem Substance ID:
UNSPSC Code:
12352302
EC Number:
233-334-2
MDL number:
Assay:
≥99%
Form:
powder
Quality Segment
product line
ReagentPlus®
assay
≥99%
form
powder
pH
4 (20 °C, 100 g/L)
density
2.03 g/mL at 25 °C (lit.)
SMILES string
O.[Co++].[O-]S([O-])(=O)=O
InChI
1S/Co.H2O4S.H2O/c;1-5(2,3)4;/h;(H2,1,2,3,4);1H2/q+2;;/p-2
InChI key
BGORGFZEVHFAQU-UHFFFAOYSA-L
General description
Cobalt(II) sulfate heptahydrate is an orange to very dark orange and dark red-orange and very dark red-brown crystalline structure that is soluble in water. It is synthesized commercially by dissolving cobalt metal in sulfuric acid. It is commonly used as a reagent in the synthesis of cobalt nanoparticles and to fabricate cobalt-nickel nanoparticles.
Application
Cobalt(II) sulfate heptahydrate can be used as a catalyst to synthesize:
- Benzazoles from alcohols and o-substituted anilines.
- β-Acetamido ketones via one-pot multi-component coupling reaction of aromatic aldehydes, acetophenones, and acetyl chlorides.
Legal Information
ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany
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Signal Word
Danger
Hazard Codes
Precautionary Statements
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
6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
Flash Point (°F)
Not applicable
Flash Point (°C)
Not applicable
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