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Dielectric constants and Clausius‐Mossotti functions for simple liquid mixtures: Systems containing nitrogen, argon and light hydrocarbons
Author(s) -
Pan W. P.,
Mady M. H.,
Miller R. C.
Publication year - 1975
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690210209
Subject(s) - dielectric , ternary operation , argon , chemistry , saturation (graph theory) , analytical chemistry (journal) , thermodynamics , nitrogen , volume (thermodynamics) , hydrocarbon , liquid nitrogen , materials science , organic chemistry , physics , mathematics , optoelectronics , combinatorics , computer science , programming language
Dielectric constants and Clausius‐Mossotti functions (CM) have been determined for selected pure components, binary mixtures, and ternary mixtures at temperatures between 91 and 115 K and pressures near saturation. Excess Clausius‐Mossotti functions (CM E ) have been calculated from the pure fluid and mixture values. Mixture CM E values are found to be generally less than 0.1% of the mixture CM values for systems containing only nonpolar species. Thus, dielectric constant measurements can be conveniently used as substitute density measurements for simple liquid mixtures. Methods have been developed to utilize dielectric constant measurements to accurately determine densities and heating values per unit liquid volume for liquefied natural gas mixtures.