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125431

Sigma-Aldrich

Cyclohexene

inhibitor-free, ReagentPlus®, 99%

Synonym(s):

Tetrahydrobenzene

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About This Item

Empirical Formula (Hill Notation):
C6H10
CAS Number:
110-83-8
Molecular Weight:
82.14
Beilstein/REAXYS Number:
906737
EC Number:
203-807-8
MDL number:
MFCD00001539
UNSPSC Code:
12352100
PubChem Substance ID:
57647002
NACRES:
NA.21
grade:
reagent
assay:
99%
bp:
83 °C (lit.)
vapor pressure:
160 mmHg ( 20 °C)
Pricing and availability is not currently available.

grade

reagent

Quality Level

200

vapor density

2.8 (vs air)

vapor pressure

160 mmHg ( 20 °C)

product line

ReagentPlus®

assay

99%

form

liquid

autoignition temp.

590 °F

expl. lim.

5 %

dilution

(for general lab use)

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.[1] Cyclohexene is formed during the batch-wise partial hydrogenation of benzene over ruthenium catalysts in the presence of an aqueous zinc sulphate solution.[2] Cyclohexene undergoes enantioselective catalytic oxidation in the presence of hydrogen peroxide over environment-friendly peroxytungstate-organic complex catalysts to afford adipic acid.[3] 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.[4]

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.[5] It may be used for the industrial preparation of cyclohexanol.[4]

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

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Danger

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 2 - Asp. Tox. 1 - Flam. Liq. 2

Storage Class

3 - Flammable liquids

wgk_germany

WGK 2

flash_point_f

1.4 °F

flash_point_c

-17 °C

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

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Certificates of Analysis (COA)

Lot/Batch Number
MKCW2541
MKCV6005
MKCR6567
MKCS4628
MKCQ6956

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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)
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
Hydration of cyclohexene with solid acid catalysts.
Zhang H, et al.
Chemical Engineering Science, 57(2), 315-322 (2002)
Kinetics of liquid phase cyclohexene hydrogenation on Pd-Al/biomorphic carbon catalysts.
Caza?a F, et al.
Catalysis Today, 14-14 (2014)
Mark E Fuller et al.
The Review of scientific instruments, 90(6), 064104-064104 (2019-07-01)
A new shock tube has been constructed for investigations of high-temperature chemical kinetics with an emphasis on combustion chemistry. This instrument includes a diaphragmless driver and electrical control of valving. A diaphragmless design significantly improves repeatability of experimental conditions vs
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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

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    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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