Measuring Heterogeneous Reaction Rates with ATR-FTIR Spectroscopy To Evaluate Chemical Fates in an Atmospheric Environment: A Physical Chemistry and Environmental Chemistry Laboratory Experiment

• Jason E. Roberts ^[1] ; Guang Zeng ^[1] ; Marta K Maron ^[1] ; Mindy Mach ^[1] ; Iman Dwebi ^[1] ; Yong Liu ^[1]
  1. [1] University of Colorado Denver

     University of Colorado Denver

     Estados Unidos

     
• Localización: Journal of chemical education, ISSN 0021-9584, Vol. 93, Nº 4, 2016, págs. 733-737
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • This paper reports an undergraduate laboratory experiment to measure heterogeneous liquid/gas reaction kinetics (ozone-oleic acid and ozone-phenothrin) using a flow reactor coupled to an attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spectrometer. The experiment is specially designed for an upper-level undergraduate Physical Chemistry laboratory course and may be incorporated in environmental chemistry and toxicology laboratory courses as well. From the experiment, students can measure heterogeneous reaction rates, calculate reactive uptake coefficients, and evaluate the lifetime of chemicals in an atmospheric environment, which is conducive to their understanding of several important concepts related to physical chemistry and environmental chemistry.