Vapor Pressure Determination using Infrared Spectroscopy
Faculty Sponsor
Anthony Masiello, Eastern Washington University
Research Project Abstract
The vapor pressure of a variety of organic compounds has been determined at various temperatures by comparison of the intensity of infrared spectral signatures to quality-assured, calibrated infrared spectra. A gas saturator was used in conjunction with a temperature controlled bath to transport saturated vapor to an infrared gas cell where it was analyzed. This approach allows for the accurate determination of vapor pressures, Antoine coefficients and enthalpies of vaporization for many compounds whose vapor pressures are too low for conventional analysis.
Session Number
PS2
Location
Graves Gym
Abstract Number
PS2-v
Vapor Pressure Determination using Infrared Spectroscopy
Graves Gym
The vapor pressure of a variety of organic compounds has been determined at various temperatures by comparison of the intensity of infrared spectral signatures to quality-assured, calibrated infrared spectra. A gas saturator was used in conjunction with a temperature controlled bath to transport saturated vapor to an infrared gas cell where it was analyzed. This approach allows for the accurate determination of vapor pressures, Antoine coefficients and enthalpies of vaporization for many compounds whose vapor pressures are too low for conventional analysis.
