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Determination of the rate constants for the gas-phase reactions of methyl butenol with OH radicals, ozone, NO3 radicals, and Cl atoms
被引:0
作者:
Fantechi, G
Jensen, NR
Hjorth, J
Peeters, J
机构:
[1] Commiss European Communities, Joint Res Ctr, Inst Environm, Atmospher Proc Unit, I-21020 Ispra, VA, Italy
[2] Katholieke Univ Leuven, Dept Chem, Heverlee, Belgium
关键词:
D O I:
10.1002/(SICI)1097-4601(1998)30:8<589::AID-KIN8>3.0.CO;2-O
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
Using a relative rate method, rate constants for the gas-phase reactions of 2-methyl-3-buten-2-ol (MBO) with OH radicals, ozone, NO, radicals, and Cl atoms have been investigated using FTIR. The measured values for MBO at 298 +/- 2 K and 740 +/- 5 torr total pressure are: k(OH) = (3.9 +/- 1.2) x 10(-11) cm(3) molecule(-1) s(-1), k(o3) = (8.6 +/- 2.9) x 10(-18) cm(3) molecule(-1) s(-1), k(No3) = (8.6 +/- 2.9) x 10-(15) cm(3) molecule-(1) s(-1), and k(Cl) = (4.7 +/- 1.0) x 10(-10) cm(3) molecule(-1) s(-1). Atmospheric lifetimes have been estimated with respect to the reactions with OH, O-3, NO3, and Cl. The atmospheric relevance of this compound as a precursor for acetone is, also, briefly discussed. (C) 1998 John Wiley & Sons, Inc. Int J Chem Kinet: 30. 589-594, 1998.
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页码:589 / 594
页数:6
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