Direct Measurement of Infinite-Dilution Activity Coefficients from Knudsen Cell-Mass Spectrometry

William R. Martin, Michael E. Paulaitis

Research output: Contribution to journalArticle

Abstract

A new experimental technique—using Knudsen cell-mass spectrometry—is described for direct, convenient determination of infinite-dilution activity coefficients of the solute in a liquid mixture at high temperatures. Two unique features of the technique are (1) calibration of the mass spectrometer is not necessary and (2) composition measurements are not required. The utility of this experimental technique is demonstrated by determining the infinite-dilution activity coefficient for magnesium in tin at 875 °C.

Original languageEnglish (US)
Pages (from-to)423-425
Number of pages3
JournalIndustrial and Engineering Chemistry Fundamentals
Volume18
Issue number4
DOIs
StatePublished - Nov 1 1979
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)

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