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12849

Sigma-Aldrich

Copper(II) sulfate pentahydrate

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

Synonym(s):
Blue Vitriol, Cupric sulfate pentahydrate, Sulfuric acid, copper(II) salt (1:1) pentahydrate
Linear Formula:
CuSO4 · 5H2O
CAS Number:
Molecular Weight:
249.69
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

vapor pressure

7.3 mmHg ( 25 °C)

Quality Level

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

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 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 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.

Signal Word

Danger

Hazard Statements

Hazard Classifications

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

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

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Certificate of Origin

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