Relative rate constants for the reactions of hydroxyl radicals and chlorine atoms with a series of aliphatic alcohols

Abstract

Rate constants for the gas-phase reactions of hydroxyl radicals and chlorine atoms with a series of alcohols have been determined by using the relative method. The experiments were performed at 295 ± 2 K and at 1 atmospheric pressure.

Temperature dependent kinetics of the gas-phase reaction of OH radicals with EMS

“…As seen in Table 1, our result agrees well with the previous values obtained in absolute methods [18][19][20][21][22] and the result obtained by Wu et al [23] by similar technique. We could believe that our smog chamber system is suitable for the simulation of gas phase reactions of OH radicals with VOC.…”

Measurements of Rate Coefficients for Reactions of OH with Ethanol and Propan-2-ol at Very Low Temperatures

“…[1][2][3][4][5][6] In addition, both ethanol and OH have been detected in interstellar molecular clouds and star forming regions (hot and cold cores) such as W3(OH) and Sgr B2, where temperatures can reach as low as 40 K. [7][8][9][10][11][12][13] Millar et al 12 suggested that ethanol could potentially be used as a chemical clock for hot cores if the kinetics of its reactions with species including the hydroxyl radical were better understood at temperatures pertinent to such environments. Conducting kinetic studies with species known to be present in these cold environments is important for the advancement of chemical models of these regions.…”

The impact of HS radicals on the measured rate constant of H2S with OH radicals

“…The rate constants for the reaction of OH radicals with H 2 S were calculated using the value of k (OH+propane) =1. [19] according to eq. (4), and the results are listed in Table 1.…”

“…The kinetic experiments were carried out in a previously described system [19,20], which was modified by replacing the cubic ligneous chamber to a thermostatic chamber (1. A gas chromatograph (GC-6AM, Shimadzu, Japan) equipped with a flame photometer detector (FPD) was used for quantitative analysis of H 2 S. H 2 S in the reaction mixtures was separated on a 3 m × 4 mm glass column packed with 20% SE 30 on Chromosorb P (60-80 mesh).…”