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Rates of Reaction between the Nitrate Radical and some Aliphatic Esters

DOI: 10.1039/ft9938900425

Source and publish data:

Journal of the Chemical Society - Faraday Transactions p. 425 - 432 (1993)

Update date:2022-08-29

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Authors:

Langer, SarkaLanger, Sarka

Ljungstroem, EvertLjungstroem, Evert

Waengberg, IngvarWaengberg, Ingvar

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Article abstract of DOI:10.1039/ft9938900425

Rate coefficients for the reaction of NO3 with methyl formate, methyl acetate, methyl propionate, methyl butyrate, ethyl formate, ethyl acetate, ethyl propionate, propyl formate, propyl acetate and n-hexane have been determined at 296 +/- 2 K.The rate coefficients, which should strictly be interpreted as upper limits, were found to be 0.36 +/- 0.08, 0.7 +/- 0.2, 3.3 +/- 0.8, 4.8 +/- 0.5, 1.7 +/- 0.3, 1.3 +/- 0.3, 3.3 +/- 0.4, 5.4 +/- 0.9, 5 +/- 2 and 14.7 +/- 3.0, respectively (in units of 10-17 molecule-1 s-1).The activation energy for the reaction between ethyl acetate and NO3 was determined to be 23 +/- 8 kJ mol-1 between 273 and 373 K.The rate coefficients for aliphatic esters may be predicted from available group reactivity factors for alkanes provided that formate carbonyl hydrogen atoms are treated as primary hydrogen atoms.

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