Forskning ved Københavns Universitet - Københavns Universitet


Atmospheric chemistry of HFC-134a. Kinetic and mechanistic study of the CF3CFHO2+NO2 reaction

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  • Trine E. Møgelberg
  • Nielsen, Ole John
  • Jens Sehested
  • Timothy J. Wallington
  • Michael D. Hurley
  • William F. Schneider

A pulse radiolysis system was used to study the kinetics of the reaction of CF3CFHO2 with NO2. By monitoring the rate of the decay of NO2 using its absorption at 400 nm the reaction rate constant was determined to be k=(5.0±0.5)×10-12 cm3 molecule-1 s-1. A long path length Fourier-transform infrared technique was used to investigate the thermal decomposition of the product CF3CFHO2NO2. At 296 K in the presence of 700 Torr of air, decomposition of CF3CFHO2NO2 was rapid (greater than 90% decomposition within 3 min). The results are discussed in the context of atmospheric chemistry of CF3CFH2 (HFC-134a).

TidsskriftChemical Physics Letters
Udgave nummer4-6
Sider (fra-til)375-380
Antal sider6
StatusUdgivet - 5 aug. 1994

ID: 228193251