Premium
An extrapolation procedure for determining solubilities of mixtures
Author(s) -
Bunger William B.
Publication year - 1959
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/bf02639643
Subject(s) - extrapolation , extraction (chemistry) , wax , solubility , chromatography , extractor , chemistry , soxhlet extractor , solvent , fraction (chemistry) , limiting , analytical chemistry (journal) , mathematics , organic chemistry , statistics , process engineering , mechanical engineering , engineering
Summary Successive extractions of mixtures are used to determine the percentage of the more soluble components present. A plot of the amount extracted vs. the extraction number results in a section of a hyperbola, which is then extrapolated to the limiting value. The solubility thus obtained is independent of arbitrary ratios of weights of solute to solvent. The method is applied to the determination of the alcohol‐soluble fraction of sugar cane wax, and a laboratory extractor operating at constant temperature is described. Also the method may be used to analyze other extraction data, e.g. , extraction with the Soxhlet extractor, to determine the amount of soluble material left unextracted after a given time.