Fourier transform near-infrared (FT-NIR) study of dissociation of octanoic acid in the liquid phase

M. A. Czarnecki; Yong Liang Liu; Yukihiro Ozaki; Masao Suzuki; Masahiro Iwahashi

doi:10.1117/12.166701

31 January 1994 Fourier transform near-infrared (FT-NIR) study of dissociation of octanoic acid in the liquid phase

M. A. Czarnecki, Yong Liang Liu, Yukihiro Ozaki, Masao Suzuki, Masahiro Iwahashi

Proceedings Volume 2089, 9th International Conference on Fourier Transform Spectroscopy; (1994) https://doi.org/10.1117/12.166701
Event: Fourier Transform Spectroscopy: Ninth International Conference, 1993, Calgary, Canada

Abstract

FT-NIR absorption spectra of octanoic acid in the liquid phase were recorded over a temperature range of 15 - 92 degree(s)C. The spectra were used to calculate integrated intensities due to the first overtone of an OH stretching mode of the free acid ((nu) _OH^f). Next, we determined the mole absorption coefficient ((epsilon) _OH^f) for the band through a series of measurements in carbon tetrachloride (CCl₄) solution at very low concentrations. The value of (epsilon) _OH^f was utilized to calculate the degree of dissociation ((alpha) ) and thermodynamical parameters of the acid.

Citation Download Citation

M. A. Czarnecki, Yong Liang Liu, Yukihiro Ozaki, Masao Suzuki, and Masahiro Iwahashi "Fourier transform near-infrared (FT-NIR) study of dissociation of octanoic acid in the liquid phase", Proc. SPIE 2089, 9th International Conference on Fourier Transform Spectroscopy, (31 January 1994); https://doi.org/10.1117/12.166701

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