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179191

Sigma-Aldrich

Cyclohexane

ACS reagent, ≥99%

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About This Item

Empirical Formula (Hill Notation):
C6H12
CAS Number:
110-82-7
Molecular Weight:
84.16
Beilstein:
1900225
EC Number:
203-806-2
MDL number:
MFCD00003814
UNSPSC Code:
12191502
eCl@ss:
39010606
PubChem Substance ID:
329751580
NACRES:
NA.21
grade:
ACS reagent
Assay:
≥99%
bp:
80.7 °C (lit.)
vapor pressure:
168.8 mmHg ( 37.7 °C)
77 mmHg ( 20 °C)
Pricing and availability is not currently available.

grade

ACS reagent

Quality Level

200

vapor density

2.9 (vs air)

vapor pressure

168.8 mmHg ( 37.7 °C)
77 mmHg ( 20 °C)

Assay

≥99%

form

liquid

impurities

H2SO4, passes test (darkened)
≤0.02% water

evapn. residue

≤0.002%

color

APHA: ≤10

refractive index

n20/D 1.426 (lit.)

bp

80.7 °C (lit.)

mp

4-7 °C (lit.)

SMILES string

C1CCCCC1

InChI

1S/C6H12/c1-2-4-6-5-3-1/h1-6H2

InChI key

XDTMQSROBMDMFD-UHFFFAOYSA-N

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General description

Cyclohexane is a cyclic alkane that predominantly exists in chair conformation due to higher stability.[1] It participates as starting reagent in the photonitrosylation process (PNC process) and affords ε-caprolactum.[2] Its oxidation by employing various oxidants such as hydrogen peroxide, tert-butyl hydroperoxide and molecular oxygen has been reported.[3]

Application

Cyclohexane has been used in the following studies:
  • As a solvent in the synthesis of europium dibenzoylmethide triethylammonium (EuD4TEA).[4]
  • Preparation of poly(dimethylsiloxane) (PDMS) microchip.[5]
  • As a solvent in the two-solvent (cyclohexane/water) deposition method for the preparation of monometallic 5wt% Ni containing catalysts.[6]
Cyclohexane may undergo oxidation using hydrogen peroxide as oxidant and in the presence of a polyoxotungstate catalyst to form cyclohexanone and cyclohexanol as the main products. Its dehydrogenation in the presence of Ni-Cu/SiO2 catalysts forms benzene in good yield.[7]

Signal Word

Danger

Hazard Statements

H225,H304,H315,H336,H410

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - Asp. Tox. 1 - Flam. Liq. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Central nervous system

Storage Class Code

3 - Flammable liquids

WGK

WGK 2

Flash Point(F)

-4.0 °F - closed cup

Flash Point(C)

-20 °C - closed cup

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Certificates of Analysis (COA)

Lot/Batch Number
SHBS0715
SDBB0852
SDBB0155
SHBS3579
SHBS2930

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Cyclohexane dehydrogenation over Ni-Cu/SiO 2 catalyst: Effect of copper addition.
Xia Z, et al.
Catalysis Communications, 90, 39-42 (2017)
Samuel Kim et al.
Methods in enzymology, 472, 119-132 (2010-06-29)
Microfluidics serves as a convenient platform for single-molecule experiments by providing manipulation of small amounts of liquids and micron-sized particles. An adapted version of capillary electrophoresis (CE) on a microchip can be utilized to separate chemical species with high resolution
Characterizations and performances of Ni/diatomite catalysts for dry reforming of methane.
Jabbour K, et al.
Chemical Engineering Journal, 264, 351-358 (2015)
The energy difference between the chair and boat forms of cyclohexane. The twist conformation of Cyclohexane.
Johnson WS, et al.
Journal of the American Chemical Society, 83(3), 606-614 (1961)
Comparison of the triboluminescent yield and decay time for europium dibenzoylmethide triethylammonium synthesized using different solvents.
Fontenot RS, et al.
CrystEngComm, 14(4), 1382-1386 (2012)
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Questions

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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    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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  2. How can I determine the shelf life / expiration / retest date of this product?

    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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