MilliporeSigma
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209198

Sigma-Aldrich

Copper(II) sulfate pentahydrate

ACS reagent, ≥98.0%

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

grade

ACS reagent

Quality Level

vapor pressure

7.3 mmHg ( 25 °C)

assay

≥98.0%
98.0-102.0% (ACS specification)

form

crystals

reaction suitability

reaction type: click chemistry
reagent type: catalyst
core: copper

pH

3.5-4.5 (20 °C, 50 g/L)

mp

110 °C (dec.) (lit.)

anion traces

chloride (Cl-): ≤0.001%

cation traces

Ca: ≤0.005%
Fe: ≤0.003%
K: ≤0.01%
Na: ≤0.02%
Ni: ≤0.005%

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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Signal Word

Danger

Hazard Statements

Hazard Classifications

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

Storage Class Code

11 - 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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