Pressure Dependence of Iso-Propyl Nitrate Formation in the i-C<sub>3</sub>H<sub>7</sub>O<sub>2</sub> + NO Reaction - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Zeitschrift für Physikalische Chemie Année : 2010

Pressure Dependence of Iso-Propyl Nitrate Formation in the i-C3H7O2 + NO Reaction

Résumé

The branching ratio β = k1b/k1a for the formation of iso-propyl nitrate, i-C3H7ONO2, in the gas-phase reaction of i-C3H7O2 with NO, i-C3H7O2 + NO → i-C3H7O + NO2 (1a), i-C3H7O2 + NO → i-C3H7ONO2 (1b), was determined over the pressure range 55-500 Torr at 298 K using a high-pressure turbulent flow reactor coupled with a chemical ionization quadrupole mass-spectrometer. The β coefficient was found to increase linearly with pressure from about 0.6% at 55 Torr to about 3% at 500 Torr. The atmospheric implication of the results obtained is briefly discussed.

Domaines

Chimie organique
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Dates et versions

hal-00574579 , version 1 (08-03-2011)

Identifiants

Citer

Nadezhda I. Butkovskaya, Alexandre Kukui, Georges Le Bras. Pressure Dependence of Iso-Propyl Nitrate Formation in the i-C3H7O2 + NO Reaction. Zeitschrift für Physikalische Chemie, 2010, 224 (7-8), pp.1025-1038. ⟨10.1524/zpch.2010.6139⟩. ⟨hal-00574579⟩
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