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Topic summary

Methylcyclohexane

Methylcyclohexane
Names Preferred IUPAC name
Methylcyclohexane
Other names
Hexahydrotoluene
Cyclohexylmethane
Toluene hexahydride
Identifiers
3D model (JSmol)
Abbreviations CyMe
MeCy ChEBI
ChemSpider
ECHA InfoCard100.003.296
UNII
  • InChI=1S/C7H14/c1-7-5-3-2-4-6-7/h7H,2-6H2,1H3
    Key: UAEPNZWRGJTJPN-UHFFFAOYSA-N
  • InChI=1/C7H14/c1-7-5-3-2-4-6-7/h7H,2-6H2,1H3
    Key: UAEPNZWRGJTJPN-UHFFFAOYAG
  • CC1CCCCC1
Properties C7H14Molar mass98.189 g·mol Appearance Colourless liquid Odorfaint, benzene-like Density0.77 g/cm Melting point−126.3 °C (−195.3 °F; 146.8 K) Boiling point101 °C (214 °F; 374 K) 0.014 g/L at 25 °C Vapor pressure37 mmHg (20°C)

49.3 hPa at 20.0 °C
110.9 hPa at 37.7 °C

−78.91·10 cm/mol Hazards Occupational safety and health (OHS/OSH):
Main hazards
severe fire hazard GHS labelling: DangerH225, H302, H304, H315, H336, H410P210, P235, P301+P310, P331, P370+P378, P403NFPA 704 (fire diamond)
1
3
0
Flash point−4 °C (25 °F; 269 K) Closed cup 283 °C (541 °F; 556 K) Explosive limits1.2%-6.7% Lethal dose or concentration (LD, LC): 2250 mg/kg (mouse, oral) 10172 ppm (mouse, 2 hr)
10,000-12,500 ppm (mouse, 2 hr)
15227 ppm (rabbit, 1 hr) NIOSH (US health exposure limits):
PEL (Permissible)
TWA 500 ppm (2000 mg/m)
REL (Recommended)
TWA 400 ppm (1600 mg/m)
IDLH (Immediate danger)
1200 ppm Safety data sheet (SDS)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Methylcyclohexane (cyclohexylmethane) is an organic compound with the molecular formula is CH3C6H11. Classified as saturated hydrocarbon, it is a colourless liquid with a faint odor.

Methylcyclohexane is used as a solvent. It is mainly converted in naphtha reformers to toluene. A special use is in PF-1 priming fluid in cruise missiles to aid engine start-up when they run on special nonvolatile jet fuel like JP-10. Methylcyclohexane is also used in some correction fluids (such as White-Out) as a solvent.

Wikipedia source