Submission Title

Vapor Pressure Determination using Infrared Spectroscopy

Session Number

PS2

Location

Graves Gym

Abstract Number

PS2-v

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.

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Apr 23rd, 1:30 PM Apr 23rd, 3:00 PM

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.