Thermodynamics of adsorption at the aqueous-air interface

Risto Pajarre (Corresponding Author), Pertti Koukkari

    Research output: Contribution to journalArticleScientificpeer-review

    1 Citation (Scopus)


    A thermodynamic model is presented for the aqueous–air interface. For common organic solutes a relationship between the activity coefficients in the bulk solution and on the surface layer is deduced by using the concept of a surface monolayer. This relation has enabled development of an equation expressing the air–water surface adsorption coefficient as a function of bulk activity coefficients, surface tensions, molar volumes and vapour pressures of the adsorbing species. The data for 51 compounds, including alkanes, cycloalkanes, aromatics, halogenated hydrocarbons, alcohols, ethers and esters, and ketones were used in the study.
    Original languageEnglish
    Pages (from-to)39-45
    JournalJournal of Colloid and Interface Science
    Issue number1
    Publication statusPublished - 2009
    MoE publication typeA1 Journal article-refereed


    • Adsorption
    • Air-water interface
    • Monolayer model
    • Surface tension
    • Thermodynamic modeling


    Dive into the research topics of 'Thermodynamics of adsorption at the aqueous-air interface'. Together they form a unique fingerprint.

    Cite this