4-methylcyclohexylmethanol

Structural formula
	Mixture of cis and trans isomers
General
Surname	4-methylcyclohexylmethanol
other names	MCHM; 1-hydroxymethyl-4-methylcyclohexane;
Molecular formula	C 8 H 16 O
Brief description	colorless liquid with a licorice odor
External identifiers / databases
EC number	609-038-8
ECHA InfoCard	100.131.091
PubChem	118193
ChemSpider	105625
Wikidata	Q15622250
properties
Molar mass	128.21 g mol −1
Physical state	liquid
density	0.92 g cm −3
boiling point	197 ° C
solubility	poorly soluble in water
Refractive index	1.4617 (20 ° C)
safety instructions
GHS hazard labeling ; no classification available
GHS hazard labeling ; no classification available
Toxicological data	825 mg kg −1 ( LD 50 , rat , oral ) ; > 2000 mg kg −1 ( LD 50 , rat , transdermal ) ;
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . Refractive index: Na-D line , 20 ° C

4-Methylcyclohexylmethanol is a mixture of two cis , trans -isomeric chemical compounds from the class of the cycloalkanes and the alcohols .

properties

4-methylcyclohexylmethanol (isomers)
cis -4-methylcyclohexylmethanol
trans -4-methylcyclohexylmethanol

Due to the substitution pattern on the cyclohexane ring , 4-methylcyclohexylmethanol occurs in the form of cis , trans isomers, which have different properties. In technical applications, a mixture of the two isomers is usually used.

use

4-methylcyclohexyl methanol is a solvent, it becomes a foam flotation ( English froth flotation ) in the coal washing used.

release

4-Methylcyclohexylmethanol attracted media attention when, on January 9, 2014, several thousand liters of the substance were released into the environment as a result of the chemical accident at Elk River .

Individual evidence

↑ ^a ^b Entry on 4-methylcyclohexylmethanol in the Hazardous Substances Data Bank , accessed on March 2, 2014.
↑ ^a ^b Entry on 4-methylcyclohexylmethanol (cis- and trans- mixture) at TCI Europe, accessed on January 13, 2014.
↑ David R. Lide (Ed.): CRC Handbook of Chemistry and Physics . 90th edition. (Internet version: 2010), CRC Press / Taylor and Francis, Boca Raton, FL, Physical Constants of Organic Compounds, pp. 3-346.
↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
↑ ^a ^b Data sheet Crude MCHM with 68-89% 4-methylcyclohexylmethanol from Eastman, accessed on March 2, 2014.
↑ Patent application US4915825 : Process for coal flotation using 4-methyl cyclohexane methanol frothers. Applied May 19, 1989 , published April 10, 1990 , Applicant: Nalco Chemical Company, Inventor: Richard D. Christie, Randall J. Fortin, Anthony E. Gross. ‌
^ Ashley Southall: Chemical Spill Fouls Water in West Virginia. In: New York Times . January 9, 2014, accessed January 13, 2014 .

[HSDB-1] Entry on 4-methylcyclohexylmethanol in the Hazardous Substances Data Bank , accessed on March 2, 2014.

[msds-2] Entry on 4-methylcyclohexylmethanol (cis- and trans- mixture) at TCI Europe, accessed on January 13, 2014.

[CRC90_3_346-3] David R. Lide (Ed.): CRC Handbook of Chemistry and Physics . 90th edition. (Internet version: 2010), CRC Press / Taylor and Francis, Boca Raton, FL, Physical Constants of Organic Compounds, pp. 3-346.

[NV-4] This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.

[eastman-5] Data sheet Crude MCHM with 68-89% 4-methylcyclohexylmethanol from Eastman, accessed on March 2, 2014.

[6] Patent application US4915825 : Process for coal flotation using 4-methyl cyclohexane methanol frothers. Applied May 19, 1989 , published April 10, 1990 , Applicant: Nalco Chemical Company, Inventor: Richard D. Christie, Randall J. Fortin, Anthony E. Gross. ‌

[southall-7] Ashley Southall: Chemical Spill Fouls Water in West Virginia. In: New York Times . January 9, 2014, accessed January 13, 2014 .