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Densities of soybean oil/solvent mixtures
Author(s) -
Rice P.,
Hamm W.
Publication year - 1988
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02660577
Subject(s) - soybean oil , solvent , hexane , chemistry , analytical chemistry (journal) , acetone , interpolation (computer graphics) , molar , molar volume , ideal (ethics) , range (aeronautics) , linear interpolation , thermodynamics , materials science , chromatography , mathematics , organic chemistry , geology , physics , mathematical analysis , paleontology , philosophy , food science , epistemology , motion (physics) , classical mechanics , polynomial , composite material
Density data for soybean oil/acetone and soybean oil/n‐hexane mixtures were measured at 20, 30 and 40 C using a PAAR DMA digital readout calculating precision density meter over the complete range of concentrations. When plotted as molar volume versus molar concentration the mixtures exhibited near ideal linear behavior. To check whether other oil/solvent mixtures behaved in a similar way, data from published literature were replotted in this form and the near ideal linear behavior was observed. Using the data at 20 C, the excess volumes V E were calculated, from which partial molar volumes for each component were obtained. These showed only slight variation over the composition range, confirming the near ideal behavior of these systems. Therefore, if densities of pure oil and solvent are known, their mixture density can be calculated by linear interpolation with sufficient accuracy for engineering design calculations.