Density dependence of the molar absorption coefficient-Application of the beer-lambert law to supercritical C02-Naphthalene mixture

Hiroshi Inomata, Yasuhiko Yagi, Masaru Saito, Shozaburo Saito

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)

Abstract

Infrared absorption spectra of naphthalene in supercritical carbon dioxide (C02) solutions of various concentrations were measured at 318.15 K at various pressures. The molar absorption coefficient of naphthalene in supercritical CO2 was found to be dependent on the density of C02. As the density of CO2 increased, a red shift of peak wavenumber of the C-C vibration (quadrant stretching) were observed. This suggests that the molecular vibration of naphthalene in supercritical C02 was affected by the fluid density.

Original languageEnglish
Pages (from-to)237-240
Number of pages4
JournalThe Journal of Supercritical Fluids
Volume6
Issue number4
DOIs
Publication statusPublished - 1993 Dec

Keywords

  • Beer-Lambert
  • CO
  • molar absorption coefficient
  • naphthalene
  • supercritical fluid

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

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