C6768

Cobalt(II) sulfate heptahydrate

ReagentPlus^®, ≥99%

• Synonym(s): Cobaltous sulfate heptahydrate
• Linear Formula: CoSO₄ · 7H₂O
• CAS Number: 10026-24-1
• Molecular Weight: 281.10
• EC Number: 233-334-2
• MDL number: MFCD00149657
• UNSPSC Code: 12352302
• PubChem Substance ID: 329775132
• NACRES: NA.55

Properties

• Quality Level: 200
• 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

Description

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.

It can also be used as a reagent to synthesize cobalt arylphosphonate metal-organic framework.

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• pictograms: GHS08,GHS07,GHS09
• signalword: Danger
• hcodes: H302,H317,H319,H334,H341,H350i,H360F,H410
• pcodes: P273 - P280 - P301 + P312 - P302 + P352 - P305 + P351 + P338 - P308 + P313
• 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
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable