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Safety Information

33117

Sigma-Aldrich

Cyclohexane

puriss. p.a., ACS reagent, ≥99.5% (GC)

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About This Item

Empirical Formula (Hill Notation):
C6H12
CAS Number:
Molecular Weight:
84.16
Beilstein:
1900225
EC Number:
MDL number:
UNSPSC Code:
12191502
PubChem Substance ID:
NACRES:
NA.21

grade

ACS reagent
puriss. p.a.

Quality Level

vapor density

2.9 (vs air)

vapor pressure

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

Assay

≥99.5% (GC)

form

liquid

autoignition temp.

500 °F

expl. lim.

9 %

impurities

≤0.001% free acid (as HCl)
≤0.001% non-volatile matter
≤0.01% water (Karl Fischer)
≤0.05% aromatic substances (as C6H6)
≤0.05% cyclohexene (C6H10)

color

APHA: ≤10

refractive index

n20/D 1.4250-1.4280
n20/D 1.426 (lit.)

bp

80.7 °C (lit.)

mp

4-7 °C (lit.)

transition temp

solidification point 5.5-6.5 °C

density

0.779 g/mL at 25 °C (lit.)

cation traces

Al: ≤0.5 mg/kg
B: ≤0.02 mg/kg
Ba: ≤0.1 mg/kg
Ca: ≤0.5 mg/kg
Cd: ≤0.05 mg/kg
Co: ≤0.02 mg/kg
Cr: ≤0.02 mg/kg
Cu: ≤0.02 mg/kg
Fe: ≤0.1 mg/kg
Mg: ≤0.1 mg/kg
Mn: ≤0.02 mg/kg
Ni: ≤0.02 mg/kg
Pb: ≤0.1 mg/kg
Sn: ≤0.1 mg/kg
Zn: ≤0.1 mg/kg

suitability

passes test for reaction against H2SO4

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 undergoes oxidation in the presence of various oxidants such as hydrogen peroxide, tert-butyl hydroperoxide and molecular oxygen.

Application

Cyclohexane has been used to prepare a 1.3M solution of sec-butyllithium. It may be used as a starting reagent for the synthesis of adipic acid and ε-caprolactam.

Other Notes

The article number 33117-4X2.5L will be discontinued. Please order the single bottle 33117-2.5L which is physically identical with the same exact specifications.
The article number 33117-4X2.5L-M will be discontinued. Please order the single bottle 33117-2.5L-M which is physically identical with the same exact specifications.
Pertains only in Germany: unversteuert

Signal Word

Danger

Hazard Statements

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


Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

PRTR

Class I Designated Chemical Substances

FSL

Group 4: Flammable liquids
Type 1 petroleums
Hazardous rank II
Water insoluble liquid

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

33117-45L-RC:
33117-1L:4548173362403
33117-VAR-D:
33117-72X2.5L:
33117S-180L:
33117S-18L-RC:
33117-5L:
33117-45L-D:
33117-500ML:
33117S-5L-RC:
33117-BULK:
33117-30L-RC:
33117-VAR:
33117-72X2.5L-D:
33117-500ML-D:
33117-200L:
33117-4X5L:
33117-30KG:
33117-45L:
33117-2.5L:
33117-18L:
33117S-7L-RC:
33117-4X2.5L:
33117-6X1L:


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Cyclohexane oxidation continues to be a challenge.
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Applied Catalysis A: General, 211(1), 1-17 (2001)
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Concise Encyclopedia Chemistry, 168-168 (1994)
Amanda L Pitts et al.
Journal of the American Chemical Society, 136(24), 8614-8625 (2014-05-16)
Carbon-hydrogen bond activation reactions of four cycloalkanes (C5H10, C6H12, C7H14, and C8H16) by the Cp'Rh(CO) fragments (Cp' = η(5)-C5H5 (Cp) or η(5)-C5Me5 (Cp*)) were modeled theoretically by combining density functional and coupled cluster theories, and their reaction rates were measured
Robert Duran et al.
Environmental science and pollution research international, 22(20), 15215-15229 (2015-02-26)
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