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Effect of inert atmosphere in the determination of free fatty acid or free caustic alkali and unsaponified material in soap
Author(s) -
Blank E. W.,
Emendorfer E.
Publication year - 1955
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/bf02639667
Subject(s) - carbonation , caustic (mathematics) , alkali metal , chemistry , atmosphere (unit) , carbon dioxide , inert , alcohol , environmental science , organic chemistry , meteorology , mathematics , physics , mathematical physics
Conclusions The conclusions to be drawn from this work can be summarized as follows: Values for free fatty acid are not significantly affected by carbonation when run under the usual laboratory conditions. Under similar conditions free caustic alkali values are low (statistically significat) and, conversely, unsaponified values are high (statistically significant). The magnitude of the error incurred by working under the usual laboratory conditions is so small as to be negligible unless extreme precision is required. Hot alcohol apparently provides its own protective vapor barrier preventing carbon dioxide absorption. This characteristic of alcohol can be further enhanced by the judicious use of watch glasses to cover beakers and funnels during the determination