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125431

Sigma-Aldrich

Cyclohexene

inhibitor-free, ReagentPlus®, 99%

Synonym(s):
Tetrahydrobenzene
Empirical Formula (Hill Notation):
C6H10
CAS Number:
Molecular Weight:
82.14
Beilstein:
906737
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

vapor density

2.8 (vs air)

Quality Level

vapor pressure

160 mmHg ( 20 °C)

product line

ReagentPlus®

assay

99%

autoignition temp.

590 °F

expl. lim.

5 %

refractive index

n20/D 1.446 (lit.)

bp

83 °C (lit.)

mp

−104 °C (lit.)

solubility

water: insoluble

density

0.811 g/mL at 25 °C (lit.)

SMILES string

C1CCC=CC1

InChI

1S/C6H10/c1-2-4-6-5-3-1/h1-2H,3-6H2

InChI key

HGCIXCUEYOPUTN-UHFFFAOYSA-N

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General description

Cyclohexene is a cyclic alkene. Kinetics of its reaction with hydrogen in gas and liquid phases over different palladium catalysts supported on silica gel and alumina (temperature range = 264 to 308K and hydrogen pressures = 4 to 89kPa) was investigated. Cyclohexene is formed during the batch-wise partial hydrogenation of benzene over ruthenium catalysts in the presence of an aqueous zinc sulphate solution. Cyclohexene undergoes enantioselective catalytic oxidation in the presence of hydrogen peroxide over environment-friendly peroxytungstate-organic complex catalysts to afford adipic acid. Selective hydrogenation of benzene has been reported to afford cyclohexene. It is an important precursor for the preparation of various chemicals such as cyclohexanol, cyclohexene hydroperoxide, etc.

Application

Cyclohexene has been used to investigate the kinetics of its liquid-phase hydrogenation reaction in the presence of Pd-Al catalyst supported on biomorphic carbon. It may be used for the industrial preparation of cyclohexanol.

Packaging

100, 500 mL in glass bottle
1, 2.5 L in glass bottle

Legal Information

ReagentPlus is a registered trademark of Sigma-Aldrich Co. LLC

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 4 Oral - Asp. Tox. 1 - Flam. Liq. 2

Storage Class Code

3 - Flammable liquids

WGK Germany

WGK 2

Flash Point(F)

10.4 °F - closed cup

Flash Point(C)

-12 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

Yuan Fang et al.
The journal of physical chemistry letters, 10(3), 468-473 (2019-01-03)
The adsorption of limonene, a common organic compound found in indoor air, on hydrophilic surfaces such as glass (SiO2), a prevalent surface in the indoor environment, is poorly understood. In this study, we have investigated the interaction of limonene and...
Kinetics of liquid phase cyclohexene hydrogenation on Pd-Al/biomorphic carbon catalysts.
Caza?a F, et al.
Catalysis Today, 14-14 (2014)
Hydration of cyclohexene with solid acid catalysts.
Zhang H, et al.
Chemical Engineering Science, 57(2), 315-322 (2002)
Catalytic hydrogenation of cyclohexene: 3. Gas-phase and liquid-phase reaction on supported palladium.
Gonzo EE and Boudart M.
J. Catal., 52(3), 462-471 (1978)
Partial liquid phase hydrogenation of benzene to cyclohexene over ruthenium catalysts in the presence of an aqueous salt solution: I. Preparation, characterization of the catalyst and study of a number of process variables.
Struijk J, et al.
Applied Catalysis A: General, 83(2), 263-295 (1992)

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