Abstract
The conclusion of the author's second communication indicates that the quantity of saturated acids in a fatty oil whose constituents are unknown might be determined by subjecting the oil to exhaustive hydrogenation under atmospheric pressure with the copper-chromium oxide catalyst and by determining the iodine value of the resulting oil. It is also derived that if none but linolic acid alone is contained as highly unsaturated acid, the quantitative determination of linolic acid might be possible on the basis of the reduction of the iodine value due to hydrogenation. This method was applied to the analysis of the seed oil of Xanthium Strumarium L.
