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12933

Sigma-Aldrich

Cobalt(II) sulfate heptahydrate

purum, ≥95%

Synonym(s):

Cobaltous sulfate heptahydrate

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About This Item

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:
329749943

grade

purum

Assay

≥95%

form

solid

density

2.03 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤500 mg/kg

cation traces

Fe: ≤50 mg/kg
Ni: ≤1000 mg/kg
Pb: ≤50 mg/kg
Zn: ≤200 mg/kg

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

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General description

Cobalt(II) sulfate heptahydrate is a hydrated cobalt salt. Its bioavailability has been assessed in human tissue fluids and human serum.

Application

Cobalt(II) sulfate heptahydrate may be used in the following processes:
  • Preparation of FeCo alloy magnetic nanofluids.
  • As a source of cobalt ion (Co2+) for the oxidation of aqueous phenol solution via electro-Fenton process.
  • Preparation of palladium-activated titanium dioxide-supported cobalt-nickel-phosphorus ternary alloy catalyst (Co-Ni-P/Pd-TiO2).
  • Preparation of {[Co(phen)2]2(μ-P2O7)}·6MeOH (P2O7 = pyrophosphate; phen = 1,10-phenanthroline), a pyrophosphatobridged cobalt(II) coordination complex.

Signal Word

Danger

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 Code

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Ali Shokuhfar et al.
Nanoscale research letters, 8(1), 540-540 (2013-12-24)
In this research, FeCo alloy magnetic nanofluids were prepared by reducing iron(III) chloride hexahydrate and cobalt(II) sulfate heptahydrate with sodium borohydride in a water/CTAB/hexanol reverse micelle system for application in magnetic hyperthermia treatment. X-ray diffraction, electron microscopy, selected area electron
Woodhall Stopford et al.
Journal of environmental monitoring : JEM, 5(4), 675-680 (2003-09-02)
Testing of metal compounds for solubility in artificial fluids has been used for many years to assist determining human health risk from exposure to specific compounds of concern. In lieu of obtaining bioavailability data from samples of urine, blood, or
Phenol degradation by advanced electrochemical oxidation process electro-Fenton using a carbon felt cathode.
Pimentel M, et al.
Applied Catalysis. B, Environmental, 83(1), 140-149 (2008)
Synthesis, Structural, Thermal and Magnetic Characterization of a Pyrophosphato-Bridged Cobalt (II) Complex.
Ikotun OF, et al.
European Journal of Inorganic Chemistry, 2008(17), 2691-2697 (2008)
Hydrogen generation from the hydrolysis of ammonia borane using cobalt-nickel-phosphorus (Co-Ni-P) catalyst supported on Pd-activated TiO2 by electroless deposition.
Rakap M, et al.
International Journal of Hydrogen Energy, 36(11), 254-261 (2011)
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