Kinetic stability of toluene-perfluorooctane emulsions

Bjarne Johansson, Rauno Friman, Peter Denifl, Jarl B. Rosenholm

Research output: Contribution to journalArticleScientificpeer-review

2 Citations (Scopus)

Abstract

The miscibility of toluene-perfluorooctane-mixtures was investigated and compared to the predictions of some commonly used models. Functional surfactant precursors and nonreacting surfactants were used for emulsifying toluene in perfluorooctane. The effect of surfactant concentration, temperature and volume fraction of toluene on the emulsion stability was studied by measuring the phase volumes and the near infrared backscattering. It was found that toluene and perfluorooctane are completely miscible only at relatively high temperatures and that the common models could not accurately predict the demixing temperatures. The emulsion breakdown and phase separation followed first order kinetics.
Original languageEnglish
Pages (from-to)121-132
Number of pages12
JournalJournal of Dispersion Science and Technology
Volume28
Issue number1
DOIs
Publication statusPublished - 2007
MoE publication typeA1 Journal article-refereed

Keywords

  • Kinetics
  • Nonaqueous emulsion
  • Toluene-perfluorooctane

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