The Philippine Journal of Science 



51.45 X 23.32 



= 13.34 



The percentage of pure saturated acids was 51.45 — 13.34, or 

 38.11. The total percentage of unsaturated acids corrected for 

 the unsaturated acids which were present as contamination in 

 the impure saturated acids was 43.87 + 13.34, or 57.21. 



The results of separating the saturated and unsaturated acids 

 in pili-nut oil are given in Table 2. 



Iodine value (Hubl) of unsaturated acids 89.92 



Iodine value (Hiibl) of impure saturated acids 23.32 



Unsaturated acids present in the impure saturated acids 



(calculated) 13.34 



Saturated acids corrected for unsaturated acids (cal- 

 culated) 38.11 

 Unsaturated acids corrected for the unsaturated acids 

 present in the saturated acids 57.21 



UNSATURATED ACIDS 



The iodine value of the unsaturated acids, separated by the 

 lead-salt method, was found to be 89.92 (Table 2). Since the 

 iodine value of oleic acid is 90.07, the result obtained indicates 

 that the unsaturated acids consist entirely of oleic acid. To 

 obtain confirmatory data the unsaturated acids were determined 

 by means of the bromo-derivative method, which is used to 

 separate and identify the unsaturated acids that may be present. 



The bromine addition products of the unsaturated acids were 

 prepared by dissolving a portion of the unsaturated acids 

 (2.1368 grams) in ether; the ethereal solution was cooled to a 



and Jamieson, G. S., Journ. Am. Chem. 



