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Merck

12849

Copper(II) sulfate pentahydrate

puriss., suitable for, meets analytical specification of Ph. Eur., BP, USP,FCC

Synonym(s):

Cupric sulfate pentahydrate, Sulfuric acid, copper(II) salt (1:1) pentahydrate

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About This Item

Linear Formula:
CuSO4 · 5H2O
CAS Number:
Molecular Weight:
249.69
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352302
EC Number:
231-847-6
MDL number:
Assay:
98.5-100.5% (USP)
Form:
crystals
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Product Name

Copper(II) sulfate pentahydrate, puriss., suitable for, meets analytical specification of Ph. Eur., BP, USP,FCC

InChI key

JZCCFEFSEZPSOG-UHFFFAOYSA-L

InChI

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

SMILES string

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

vapor pressure

7.3 mmHg ( 25 °C)

grade

puriss.

assay

98.5-100.5% (USP)

form

crystals

quality

meets analytical specification of Ph. Eur., BP, USP,FCC

loss

35.0-36.5% loss on drying, 250 °C

pH

3.5-4.5 (20 °C, 50 g/L)

mp

110 °C (dec.) (lit.)

anion traces

chloride (Cl-): ≤100 mg/kg

cation traces

As: ≤5 mg/kg
Ca: ≤50 mg/kg
Fe: ≤30 mg/kg
K: ≤100 mg/kg
Mg: ≤50 mg/kg
Na: ≤200 mg/kg
Ni: ≤50 mg/kg
Pb: 4 ppm

suitability

passes test for appearance of solution
suitable for

Quality Level

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Application

Copper(II) sulfate pentahydrate may be employed for the following studies:
  • As 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.

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 catalyst for the synthesis of different ligand-arm functionalized azoamides. On heating above 560°C, it decomposes to CuO.

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Danger

Hazard Classifications

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

Storage Class

13 - Non Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


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Copper (II) Sulfate.
Hoffman RV, et al.
e-EROS Encyclopedia of Reagents for Organic Synthesis. (2001)
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)
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.
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)
William C Kwan et al.
The Journal of comparative neurology, 527(3), 558-576 (2018-01-03)
The primate visual brain possesses a myriad of pathways, whereby visual information originating at the retina is transmitted to multiple subcortical areas in parallel, before being relayed onto the visual cortex. The dominant retinogeniculostriate pathway has been an area of

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