Solubility in supercritical fluid mixtures with co-solvents: an integral equation approach

Hideki Tanaka, Koichiro Nakanishi

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


The solubility of naphthalene in supercritical carbon dioxide fluids has been evaluated by means of the integral equation method. The role of entrainer was investigated by examining the pressure dependence of solubility curves in fluids with or without entrainer. The solubility of naphthalene increases with the addition of a small amount of c̀o-solvent. This increase in solubility arises from the attractive interaction between the co-solvent and the solute naphthalene and from a decrease in pressure at the same density due to stronger interactions between carbon dioxide and the co-solvent than that for carbon dioxide dimer.

Original languageEnglish
Pages (from-to)107-120
Number of pages14
JournalFluid Phase Equilibria
Issue number2
Publication statusPublished - Dec 30 1994
Externally publishedYes


  • Entrainer
  • Integral equation
  • Solubility
  • Supercritical fluid

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry


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