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Wesson loss as a measure of the degree of refining
Author(s) -
Hartman L.,
White Margaret D. L.
Publication year - 1952
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/bf02612596
Subject(s) - refining (metallurgy) , glyceride , sodium carbonate , chemistry , chromatography , degree (music) , crude oil , alkali metal , sodium , engineering , organic chemistry , petroleum engineering , fatty acid , physics , acoustics
Summary Wesson loss determinations carried out on a number of alkali‐refined oils have shown them to retain varying amounts of non‐glycerides, depending on the type of the oil and on the method of refining. Oils refined according to the official A.O.C.S. method or with sodium carbonate followed by re‐refining are practically free of non‐glycerides while those refined with a moderate excess of alkali over the theory (10–25%) retain appreciable amounts of non‐glycerides. The Wesson method could therefore be used as a quantitative test for the degree of refining. The chromatographic method is not suitable for this purpose since it shows losses when applied both to carefully refined and to previously chromatographed oils, but in agreement with the Linteris' and Handschumaker's results it has been found applicable to the estimation of loss constituents in crude oils.