| Identification | More | [Name]
CYCLOHEPTANE | [CAS]
291-64-5 | [Synonyms]
CYCLOHEPTANE
HEPTAMETHYLENE
suberane
CYCLOHEPTANE 97% (GC)
Cycloheptan | [EINECS(EC#)]
206-030-2 | [Molecular Formula]
C7H14 | [MDL Number]
MFCD00004147 | [Molecular Weight]
98.19 | [MOL File]
291-64-5.mol |
| Chemical Properties | Back Directory | [Appearance]
Clear colourless liquid | [Melting point ]
-12 °C | [Boiling point ]
118.5 °C(lit.) | [density ]
0.811 g/mL at 25 °C(lit.)
| [vapor pressure ]
44 mm Hg ( 37.7 °C)
| [refractive index ]
n20/D 1.445(lit.)
| [Fp ]
43 °F
| [storage temp. ]
Flammables area | [solubility ]
Soluble in alcohol, benzene, chloroform, ether, and ligroin (Weast, 1986) | [form ]
Liquid | [color ]
Clear colorless | [Water Solubility ]
Soluble in water 30 mg @ 20°C. | [BRN ]
1900279 | [Henry's Law Constant]
9.35 x 10-2 atm?m3/mol(approximate - calculated from water solubility and vapor pressure) | [Dielectric constant]
2.0800000000000001 | [Exposure limits]
Organic synthesis; gasoline component. | [CAS DataBase Reference]
291-64-5(CAS DataBase Reference) | [EPA Substance Registry System]
Cycloheptane (291-64-5) |
| Safety Data | Back Directory | [Hazard Codes ]
F,Xn | [Risk Statements ]
R11:Highly Flammable.
R65:Harmful: May cause lung damage if swallowed. | [Safety Statements ]
S16:Keep away from sources of ignition-No smoking .
S23:Do not breathe gas/fumes/vapor/spray (appropriate wording to be specified by the manufacturer) .
S24/25:Avoid contact with skin and eyes .
S62:If swallowed, do not induce vomiting: seek medical advice immediately and show this container or label . | [RIDADR ]
UN 2241 3/PG 2
| [WGK Germany ]
2
| [RTECS ]
GU3140000 | [HazardClass ]
3 | [PackingGroup ]
II | [HS Code ]
29021900 | [Hazardous Substances Data]
291-64-5(Hazardous Substances Data) |
| Hazard Information | Back Directory | [General Description]
A colorless oily liquid. Insoluble in water and less dense than water. Flash point 60°F. Vapors heavier than air. Inhalation of high concentrations may have a narcotic effect. Used to make other chemicals. | [Reactivity Profile]
Saturated aliphatic hydrocarbons, such as CYCLOHEPTANE(291-64-5), may be incompatible with strong oxidizing agents like nitric acid. Charring of the hydrocarbon may occur followed by ignition of unreacted hydrocarbon and other nearby combustibles. In other settings, aliphatic saturated hydrocarbons are mostly unreactive. They are not affected by aqueous solutions of acids, alkalis, most oxidizing agents, and most reducing agents. | [Air & Water Reactions]
Highly flammable. Insoluble in water. | [Health Hazard]
May be harmful by inhalation, ingestion, or skin absorption. May cause eye and skin irritation. | [Fire Hazard]
Special Hazards of Combustion Products: Vapor may travel considerable distance to a source of ignition and flash back. Container explosion may occur under fire conditions. Forms explosive mixures in air. | [Chemical Properties]
Clear colourless liquid | [Physical properties]
Clear, oily, flammable liquid with a faint odor resembling cyclohexane, cyclooctane, or gasoline. | [Uses]
Cycloheptane is used as a nonpolar solvent for the chemical industry and as an intermediate in the manufacture of chemicals and pharmaceutical drugs. It can be used to get fluorocycloheptane. | [Synthesis Reference(s)]
Journal of the American Chemical Society, 95, p. 1669, 1973 DOI: 10.1021/ja00786a057
Tetrahedron Letters, 17, p. 463, 1976 DOI: 10.1016/S0040-4039(00)77883-X
The Journal of Organic Chemistry, 40, p. 3652, 1975 DOI: 10.1021/jo00913a008 | [Environmental Fate]
Biological. Cycloheptane may be oxidized by microbes to cycloheptanol, which may oxidize to
give cycloheptanone (Dugan, 1972).
Photolytic. The following rate constants were reported for the reaction of cycloheptane and OH
radicals in the atmosphere: 1.31 x 10-12 cm3/molecule?sec at 298 K (Atkinson, 1985) and 1.25 x
10-11 cm3/molecule?sec (Atkinson, 1990).
Chemical/Physical. Cycloheptane will not hydrolyze because it has no hydrolyzable functional
group. | [Purification Methods]
Distil it from sodium using a Vigreux column (p 11), under nitrogen. It is highly flammable. [Bocian & Strauss J Am Chem Soc 99 2866 1977, Ruzicka et al. Helv Chim Acta 28 395 1945, Beilstein 5 H 92, 5 IV 92.] |
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