Ozone Reaction with 1-Hexene -<i>Clue to Smog Formation</i>

Saltzman, Bernard E.; Gilbert, Nathan.

doi:10.1021/ie50599a049

Cited by 14 publications

(14 citation statements)

References 3 publications

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“…However, 1,3-C4H6 can have a five-membered ring trioxolane with the 0, connected to carbons 1 and 2 or a seven-membered ring trioxolane with the 0, connected to carbons 1 and 4. Likewise 1,3-C5H8 can form In the activated complex theory the rate coefficient expression has the form (5)…”

Section: Discussionmentioning

confidence: 99%

Reactions of ozone with olefins: Ethylene, allene, 1,3‐butadiene, and trans‐ 1,3‐pentadiene

Bahta

Simonaitis

Heicklen

1984

Int J of Chemical Kinetics

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The reactions of 0, with ethylene, allene, 1,3-butadiene, and trans-1,3-pentadiene have been studied in the presence of excess 0, over the temperature range 232 to 298 K. The initial 0, pressure was varied from 4-18 mtorr, and the olefin pressure was varied from 0.1 to 4.5 torr (ethylene), 2.8 to 39.6 torr (allene), 52.7 to 600 mtorr (1,3butadiene) or 26.2 to 106 mtorr (trans-1,3-pentadiene). The 0, decay was monitored by ultraviolet absorption. The reactions are first order in both 0, and olefin, and the rate coefficients are independent of the 0, pressure. For the 0,-ethylene system, various diluent gases (02, N, , air) were used and the rate coefficients were found to be independent of the nature of the diluent gas. The various rate coefficients fit the Arrhenius expressions (k in cm3 s-'): For C,H,: k{232-298 K} = (7.72 2 0.89) x For C,H,: k{252-298 K} = (1.54 rt 0.25) x For 1,3-C4H,: k{254-299 K} = (2.20 ? 0.44) x For trans-1,3-C5H,: k{238-298 K} = (1.07 2 0.25) x lo-', exp[ -(4608 ? 122)RTl exp[-(5080 rt 60)/RT] exp [-(5343 ? 87)/RT] exp[-(4828 ? 109)/RT]where the reported uncertainties are one standard deviation and R is in cal/mol K.

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Section: Discussionmentioning

confidence: 99%

Reactions of ozone with olefins: Ethylene, allene, 1,3‐butadiene, and trans‐ 1,3‐pentadiene

Bahta

Simonaitis

Heicklen

1984

Int J of Chemical Kinetics

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“…Saltunan's experiments with hexene-1-ozone reactions (79) appear to be the only investigations in which free radicals were actually detected. A specially constructed mass spectrometer, which was applicable to the study of very fast reactions, was used in this work.…”

Section: Organic Photochemical Mechanismmentioning

confidence: 99%

Photochemical Aspects of Air Pollution: A Review

Altshuller

Bufalini

1965

Photochem & Photobiology

110

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“…However, interpretation of the results is restricted because of the nonspecificity of these methods and the uncertainty of the stoichiometry of iodine liberation. This report deals with an important part of a study (3,(14)(15)(16)(17) of the kinetics of smog oxidant generation by the reaction of ozone with 1-hexene, which required precise and specific methods for the determination of low concentrations of oxidants. Upon passing ozone through iodide reagents, whereas most of the iodine appeared to be liber-ated instantly, the spectrophotometric readings continued to increase slowly until 45 minutes or more had elapsed, indicating other slow reactions.…”

Section: Iodometricmentioning

confidence: 99%

“…A series of relative concentrations of ozone prepared by accurate dilution in the flow system of the output of the ozonizer operated under constant conditions, was analyzed by the neutral iodide procedure. Extensive data from the kinetic study (16,16) are given in Figure 4. Although 1-hexene was mixed with the ozone in these determinations, it did not interfere with the analysis, nor appreciably react with the ozone during the 4-second mixing period prior to sampling.…”

Section: The Iodo Metric Micro Determination Of Ozonementioning

confidence: 99%