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Rate constants for the gas-phase reactions of selected dibasic esters with the OH radical

✍ Scribed by Sara M. Aschmann; Roger Atkinson

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 112 KB
Volume: 30
Category: Article
ISSN: 0538-8066
DOI: 10.1002/(sici)1097-4601(1998)30:7<471::aid-kin3>3.0.co;2-p

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✦ Synopsis

Using a relative rate method, rate constants have been measured for the gasphase reactions of the OH radical with the dibasic esters dimethyl succinate

The rate constants ob-298 Ϯ 3 K. tained were (in units of ): dimethyl succinate, dimethyl

10 cm molecule s 1.4 Ϯ 0.6; glutarate, and dimethyl adipate, where the indicated errors include the 3.3 Ϯ 1.1; 8.4 Ϯ 2.5, estimated overall uncertainty of Ϯ25% in the rate constant for cyclohexane, the reference compound. The calculated tropospheric lifetimes of these dibasic esters due to gas-phase reaction with the OH radical range from 1.4 days for dimethyl adipate to 8.3 days for dimethyl succinate for a average OH radical concentration of ᭧ 1998

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