Representation and validation of liquid densities for pure compounds and mixtures

Vladimir Diky, John P. O'Connell, Jens Abildskov, Kenneth Kroenlein, Michael Frenkel

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Reliable correlation and prediction of liquid densities are important for designing chemical processes at normal and elevated pressures. A corresponding-states model from molecular theory was extended to yield a robust method for quality testing of experimental data that also provides predicted values at unmeasured conditions. The model has been shown to successfully represent and validate the pressure and temperature dependence of liquid densities greater than 1.5 of the critical density for pure compounds, binary mixtures, and ternary mixtures from the triple to critical temperatures at pressures up to 106 kPa. The systems include the full range of organic compounds, including complex solutions, and ionic liquids. Minimal data are required for making predictions.
Original languageEnglish
JournalJournal of Chemical and Engineering Data
Volume60
Issue number12
Pages (from-to)3545-3553
ISSN0021-9568
DOIs
Publication statusPublished - 2015

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