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Sigma-Aldrich

Copper(II) sulfate

puriss., meets analytical specification of Ph. Eur., BP, USP, anhydrous, 99-100.5% (based on anhydrous substance)

Synonym(s):

Cupric sulfate

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About This Item

Linear Formula:
CuSO4
CAS Number:
7758-98-7
Molecular Weight:
159.61
EC Number:
231-847-6
MDL number:
MFCD00010981
UNSPSC Code:
12352302
PubChem Substance ID:
329749899
NACRES:
NA.21

vapor pressure

7.3 mmHg ( 25 °C)

Quality Level

200

grade

puriss.

Assay

99-100.5% (based on anhydrous substance)

form

solid

quality

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

impurities

residual solvents, complies

loss

≤1% loss on drying, 250 °C

pH

3.5-4.5 (20 °C, 50 g/L)

mp

200 °C (dec.) (lit.)

density

3.603 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤100 mg/kg

cation traces

Ca: ≤50 mg/kg
Fe: ≤30 mg/kg
K: ≤100 mg/kg
Mg: ≤100 mg/kg
Na: ≤200 mg/kg
Ni: ≤50 mg/kg
Pb: ≤80 mg/kg

SMILES string

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

InChI

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

InChI key

ARUVKPQLZAKDPS-UHFFFAOYSA-L

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General description

Copper(II) sulfate acts as a redox catalyst along with potassium permanganate for the oxidation of alcohols. On heating above 560°C, it decomposes to CuO.5
It can find applications in agriculture as a nutrient for plants. It can also serve as a precursor in the production of foliar bactericides and fungicides.

Application

Copper(II) sulfate may be employed for 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 a Lewis acid catalyst for the dehydration of alcohols.5

Pictograms

Exclamation markEnvironment
GHS07,GHS09

Signal Word

Warning

Hazard Statements

H302,H315,H319,H410

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Irrit. 2 - Skin Irrit. 2

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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Author - Richardson W.H
Handbook of Copper Compounds and Applications (1997)
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)
William T Triplett et al.
Magnetic resonance in medicine, 72(1), 8-19 (2013-09-06)
The relationship between fat fractions (FFs) determined based on multiple TE, unipolar gradient echo images and (1) H magnetic resonance spectroscopy (MRS) was evaluated using different models for fat-water decomposition, signal-to-noise ratios, and excitation flip angles. A combination of single-voxel
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)
M Seder-Colomina et al.
Ecotoxicology (London, England), 22(1), 199-205 (2012-11-10)
Microbial mats are coastal ecosystems that consist mainly of cyanobacteria, primary producers in these habitats that play an important role in stabilising delta sediments. However, these ecosystems are subject to various kinds of pollution, including metal contamination, placing their survival
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