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31293

Sigma-Aldrich

Copper(II) sulfate pentahydrate

puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., 99-102%

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Synonym(s):
Cupric sulfate pentahydrate, Sulfuric acid, copper(II) salt (1:1) pentahydrate
Linear Formula:
CuSO4 · 5H2O
CAS Number:
7758-99-8
Molecular Weight:
249.69
EC Number:
231-847-6
MDL number:
MFCD00149681
UNSPSC Code:
12352300
PubChem Substance ID:
329753743
NACRES:
NA.21

grade

ACS reagent
puriss. p.a.

Quality Level

200

Agency

USP/NF
reag. ISO
reag. Ph. Eur.

vapor pressure

7.3 mmHg ( 25 °C)

Assay

99-102%

form

solid

impurities

≤0.001% total nitrogen (N)
≤0.005% in water insoluble matters

pH

3.7-4.5 (20 °C, 5%)

mp

110 °C (dec.) (lit.)

anion traces

chloride (Cl-): ≤10 mg/kg

cation traces

As: ≤0.5 mg/kg
Ca: ≤10 mg/kg
Cd: ≤10 mg/kg
Co: ≤10 mg/kg
Fe: ≤20 mg/kg
K: ≤10 mg/kg
Mg: ≤5 mg/kg
Na: ≤20 mg/kg
Ni: ≤20 mg/kg
Pb: ≤20 mg/kg
Zn: ≤300 mg/kg

SMILES string

O.O.O.O.O.[Cu++].[O-]S([O-])(=O)=O

InChI

1S/Cu.H2O4S.5H2O/c;1-5(2,3)4;;;;;/h;(H2,1,2,3,4);5*1H2/q+2;;;;;;/p-2

InChI key

JZCCFEFSEZPSOG-UHFFFAOYSA-L

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General description

Copper(II) sulfate pentahydrate (CuSO4·5H2O, Blue vitriol) is a hydrated copper(II) salt. It undergoes hydrothermal reactions with the tripodal ligands to afford metal-organic frameworks (MOFs). CuSO4·5H2O along with metallic copper was employed as a catalyst for the synthesis of different ligand-arm functionalized azoamides. On heating above 560°C, it decomposes to CuO.

Application

Copper(II) sulfate pentahydrate may be employed in the following studies:
  • As a catalyst for the acetylation of alcohols and phenols under solvent-free conditions.
  • To compose the electrolyte for the electrodeposition of Cu-Zn-Sn precursors, required for the preparation of Cu2ZnSnS4 (CZTS) thin films.
  • As catalyst for the dehydration of alcohols.

Signal Word

Danger

Hazard Statements

H302,H318,H410

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1

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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Copper (II) sulfate pentahydrate (CuSO4. 5H2O): a green catalyst for solventless acetylation of alcohols and phenols with acetic anhydride.
Heravi MM, et al.
Journal of the Brazilian Chemical Society, 17(5), 1045-1047 (2006)
Hangil Moon et al.
Materials (Basel, Switzerland), 13(5) (2020-03-11)
Despite the widespread application of activated carbon fiber (ACF) filters in air cleaning owing to their high surface area and low price, they have certain limitations in that they facilitate bacterial growth upon prolonged use as ACF filters can provide
Copper (II) Sulfate.
Hoffman RV, et al.
e-EROS Encyclopedia of Reagents for Organic Synthesis. (2001)
Preparation of Cu2ZnSnS4 thin films by sulfurization of co-electroplated Cu-Zn-Sn precursors.
Araki H, et al.
Physica Status Solidi, 6(5), 1266-1268 (2009)
Wei Zhao et al.
Dalton transactions (Cambridge, England : 2003), (8)(8), 1509-1517 (2005-04-13)
Three novel metal-organic frameworks (MOFs), [Cu(1)SO4].H2O (4), [Cu2(2)2(SO4)2].4H2O (5) and [Cu(3)(H2O)]SO4.5.5H2O (6), were obtained by hydrothermal reactions of CuSO4.5H2O with the corresponding ligands, which have different flexibility. The structures of the synthesized complexes were determined by single-crystal X-ray diffraction analyses.
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