Gas-phase reactions of cyclohexanol with the hydroxyl radical.
Henley-MV; Bradley-WR; Wyatt-SE; Graziano-GM; Wells-JR
Abstr Pap - Am Chem Soc 2001 Apr; 221(Part 1):U486
The gas phase reaction of the hydroxyl radical (OH) with cyclohexanol (COL) has been studied. The rate coefficient was determined to be (19.0 +/- 4.8) x 10-12 cm3 molecule-1 S-1 (at 297 +/- 3 K and 1 atmosphere total pressure) using the relative rate technique with pentanal, decane, and tridecane as the reference compounds. Assuming an average OH concentration of 1 x 10(6) molecules cm-3, an atmospheric lifetime of 15 h is calculated for cyclohexanol. Products of the OH + COL reaction were determined to more clearly define cyclohexanol's atmospheric degradation mechanism. The observed products were: cyclohexa- none, hexanedial, 3-hydroxycyclohexanone, and 4-hydroxycyclohexanone. Consideration of the potential reaction pathways suggests that each of these products is formed via hydrogen abstraction at a different site on the cyclohexanol ring.
Analytical-processes; Analytical-chemistry; Mathematical-models; Chemical-analysis; Chemical-composition; Chemical-properties
Mike V. Henley, Air Expeditionary Forces Technologies Division, Air Force Research Laboratory/MLQL, 139 Barnes Dr., Suite 2, Tyndall AFB, FL 32403
Abstract; Conference/Symposia Proceedings
Abstracts of Papers - American Chemical Society