Evaporation Kinetics in Short-Chain Alcohols by Optical Interference

• Ian M. Rosbrugh ^[1] ; S. Y. Nishimura ^[1] ; A. M. Nishimura ^[1]
  1. [1] Westmont College

     Westmont College

     Estados Unidos

     
• Localización: Journal of chemical education, ISSN 0021-9584, Vol. 77, Nº 8 (August), 2000, págs. 1047-1047
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • The evaporation rates of volatile organic liquids may be determined through the observation of optical interference of spatially coincident light that is reflected from the top (air-liquid) and bottom (liquid-surface) of a liquid drop on a glass surface. As an example of what is possible with this technique, the evaporation for a series of short-chain alcohols and acetone was investigated. For 1-propanol, 2-propanol, 2-methyl-1-propanol, and acetone, the kinetics of evaporation was determined to be zero order. For methanol and ethanol, the process was significantly higher than zero order.