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Title: Atmospheric chemistry of selected hydroxycarbonyls

Abstract

Using a relative rate method, rate constants have been measured at 296 {+-} 2 K for the gas-phase reactions of the OH radical with 1-hydroxy-2-butanone, 3-hydroxy-2-butanone, 1-hydroxy-3-butanone, 1-hydroxy-2-methyl-3-butanone, 3-hydroxy-3-methyl-2-butanone, and 4-hydroxy-3-hexanone, with rate constants (in units of 10{sup {minus}12} cm{sup 3} molecule{sup {minus}1} s{sup {minus}1}) of 7.7 {sup {minus}} 1.7, 10.3 {+-} 2.2, 8.1 {+-} 1.8, 16.2 {+-} 3.4, 0.94 {+-} 0.37, and 15.1 {+-} 3.1, respectively, where the error limits include the estimated overall uncertainty in the rate constant for the reference compound. Rate constants were also measured for reactions with NO{sub 3} radicals and O{sub 3}. Rate constants for the NO{sub 3} radical reactions (in units of 10{sup {minus}16} cm{sup 3} molecule{sup {minus}1} s{sup {minus}1}) were 1-hydroxy-2-butanone, <9; 3-hydroxy-2-butanone, 6.5 {+-} 2.2; 1-hydroxy-3-butanone, 22; 1-hydroxy-2-methyl-3-butanone, 22; 3-hydroxy-3-methyl-2-butanone, 2; and 4-hydroxy-3-hexanone, 12 {+-} 4, where the error limits include the estimated overall uncertainties in the rate constants of <1.1 x 10{sup {minus}19} cm{sup 3} molecule{sup {minus}1} s{sup {minus}1} were derived for all six hydroxycarbonyls. The dominant tropospheric loss process for the hydroxycarbonyls studied here is calculated to be by reaction with the OH radical.

Authors:
; ;
Publication Date:
Research Org.:
Univ. of California, Riverside, CA (US)
OSTI Identifier:
20034420
Resource Type:
Journal Article
Journal Name:
Journal of Physical Chemistry A: Molecules, Spectroscopy, Kinetics, Environment, amp General Theory
Additional Journal Information:
Journal Volume: 104; Journal Issue: 17; Other Information: PBD: 4 May 2000; Journal ID: ISSN 1089-5639
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; ATMOSPHERIC CHEMISTRY; HYDROXYL RADICALS; CARBONYLS; CHEMICAL REACTION KINETICS; KETONES; ORGANIC COMPOUNDS; VOLATILE MATTER

Citation Formats

Aschmann, S.M., Arey, J., and Atkinson, R. Atmospheric chemistry of selected hydroxycarbonyls. United States: N. p., 2000. Web. doi:10.1021/jp9939874.
Aschmann, S.M., Arey, J., & Atkinson, R. Atmospheric chemistry of selected hydroxycarbonyls. United States. doi:10.1021/jp9939874.
Aschmann, S.M., Arey, J., and Atkinson, R. Thu . "Atmospheric chemistry of selected hydroxycarbonyls". United States. doi:10.1021/jp9939874.
@article{osti_20034420,
title = {Atmospheric chemistry of selected hydroxycarbonyls},
author = {Aschmann, S.M. and Arey, J. and Atkinson, R.},
abstractNote = {Using a relative rate method, rate constants have been measured at 296 {+-} 2 K for the gas-phase reactions of the OH radical with 1-hydroxy-2-butanone, 3-hydroxy-2-butanone, 1-hydroxy-3-butanone, 1-hydroxy-2-methyl-3-butanone, 3-hydroxy-3-methyl-2-butanone, and 4-hydroxy-3-hexanone, with rate constants (in units of 10{sup {minus}12} cm{sup 3} molecule{sup {minus}1} s{sup {minus}1}) of 7.7 {sup {minus}} 1.7, 10.3 {+-} 2.2, 8.1 {+-} 1.8, 16.2 {+-} 3.4, 0.94 {+-} 0.37, and 15.1 {+-} 3.1, respectively, where the error limits include the estimated overall uncertainty in the rate constant for the reference compound. Rate constants were also measured for reactions with NO{sub 3} radicals and O{sub 3}. Rate constants for the NO{sub 3} radical reactions (in units of 10{sup {minus}16} cm{sup 3} molecule{sup {minus}1} s{sup {minus}1}) were 1-hydroxy-2-butanone, <9; 3-hydroxy-2-butanone, 6.5 {+-} 2.2; 1-hydroxy-3-butanone, 22; 1-hydroxy-2-methyl-3-butanone, 22; 3-hydroxy-3-methyl-2-butanone, 2; and 4-hydroxy-3-hexanone, 12 {+-} 4, where the error limits include the estimated overall uncertainties in the rate constants of <1.1 x 10{sup {minus}19} cm{sup 3} molecule{sup {minus}1} s{sup {minus}1} were derived for all six hydroxycarbonyls. The dominant tropospheric loss process for the hydroxycarbonyls studied here is calculated to be by reaction with the OH radical.},
doi = {10.1021/jp9939874},
journal = {Journal of Physical Chemistry A: Molecules, Spectroscopy, Kinetics, Environment, amp General Theory},
issn = {1089-5639},
number = 17,
volume = 104,
place = {United States},
year = {2000},
month = {5}
}