Methylcyclohexane
Title: Methylcyclohexane
CAS Registry Number: 108-87-2
Additional Names: Hexahydrotoluene; cyclohexylmethane
Molecular Formula: C7H14
Molecular Weight: 98.19
Percent Composition: C 85.62%, H 14.37%
Literature References: Prepn: F. Wreden, B. Znatowicz, Ann. 187, 161 (1877); E. Knoevenagel, ibid. 297, 113 (1897); and physical properties: J. P. Wibaut et al., Rec. Trav. Chim. 58, 12 (1939). Toxicology: J. F. Treon et al., J. Ind. Hyg. Toxicol. 25, 199 (1943). Dehydrogenation to produce motor fuel: N. Gruenenfelder et al., Proc. 20th Intersoc. Energy Convers. Eng. Conf. 2, 2.781 (1985). Kinetics of industrial dehydrogenation to toluene: A. Touzani et al., Stud. Surf. Sci. Catal. 19, 357 (1984); use of a membrane reactor to improve process: J. K. Ali, A. Baiker, Appl. Catal. A 155, 41 (1997).
Properties: Clear, fragrant liquid, mp -126.3°. bp760 101.2 ± 0.3°; also reported as bp760 103°. nD18.5 1.41705; nD20 1.4230; nD25 1.42063. d418.5 0.7662; d420 0.76944; d425 0.76512. Surface tension: 23.73 dynes/cm. Insol in water at 20°.
Melting point: mp -126.3°
Boiling point: bp760 101.2 ± 0.3°; bp760 103°
Index of refraction: nD18.5 1.41705; nD20 1.4230; nD25 1.42063
Density: d418.5 0.7662; d420 0.76944; d425 0.76512
CAUTION: Potential symptoms of overexposure are irritation of eyes, skin, nose and throat; lightheadedness, drowsiness. See NIOSH Pocket Guide to Chemical Hazards (DHHS/NIOSH 97-140, 1997) p 204.
Use: Solvent; starting material in the synthesis of toluene.

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