Cyclohexane is the cycloalkane molecule with the formula C
6H
12, with 6 carbon atoms connected to each other in a ring shape, and each connected to two hydrogen atoms. It is used when making adipic acid and caprolactam, which can them be used to make nylon. It has no color and is flammable.
Quick facts Names, Identifiers ...
Cyclohexane
 Cyclohexane |
 3D structure of a cyclohexane molecule |
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 Skeletal formula of cyclohexane in its chair conformation |
 Ball-and-stick model of cyclohexane in its chair conformation |
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| Names |
| Preferred IUPAC name
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Other names
Hexanaphthene (archaic) [2] |
| Identifiers |
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3D model (JSmol) |
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| ChEBI |
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| ChEMBL |
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| ChemSpider |
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| DrugBank |
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| ECHA InfoCard |
100.003.461 |
| KEGG |
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| UNII |
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| Properties |
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C6H12 |
| Molar mass |
84.16 g·mol−1 |
| Appearance |
Colorless liquid |
| Odor |
Sweet, gasoline-like |
| Density |
0.7781 g/mL, liquid |
| Melting point |
6.47 °C (43.65 °F; 279.62 K) |
| Boiling point |
80.74 °C (177.33 °F; 353.89 K) |
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Immiscible |
| Solubility |
Soluble in ether, alcohol, acetone
Miscible with olive oil |
| Vapor pressure |
78 mmHg (20 °C)[3] |
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-68.13·10−6 cm3/mol |
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1.42662 |
| Viscosity |
1.02 cP at 17 °C |
| Thermochemistry |
Std enthalpy of
formation ΔfHo298 |
-156 kJ/mol |
Std enthalpy of
combustion ΔcHo298 |
-3920 kJ/mol |
| Hazards |
| EU classification |
 F Template:Hazchem Xn  N |
| NFPA 704 |
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| R-phrases |
R11, R38, R65, R67, R50/53 |
| S-phrases |
(S2), S9, S16, S25, S33, S60, S61, S62 |
| Explosive limits |
1.3%-8%[3] |
U.S. Permissible
exposure limit (PEL) |
TWA 300 ppm (1050 mg/m3)[3] |
| Related compounds |
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| Related compounds |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). |
| Y verify (what is YN ?) |
| Infobox references |
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