276 The Philippine Journal of Science 



squash-seed oil 10 was, in general, used and the following data 

 were employed : 



Molecular weight of potassium hydroxide 56.1 



Iodine value of methyl oleate 85.81 



Saponification value of methyl oleate 189.5 



Table 6. — Calculation of saturated acids to glycerides originally present 



in the oil. 



~ 



—-- — 



la "i" is 



Saturated 





Grams. 



Pe 'r: 



Per cent. 



Ptr cent. 



Stearic 





26.60 



100.00 



38.11 



40.01 





As shown by the data given in Table 6, palmitin and stearin 

 are the only saturated glycerides present in the oil. 



In calculating the composition of the saturated acids the 

 residues obtained in distilling the methyl esters were not con- 

 sidered. Since the esters seemed to decompose somewhat during 

 the distillation, it was thought that the data obtained by analyz- 

 ing the impure residues would not really represent the properties 

 of the pure esters. There is, of course, a possibility that these 

 residues contained other esters, in addition to those recorded. 

 Considering the temperatures of the distillates and the experi- 

 mental observations this would, however, appear to be unlikely. 



SUMMARY 



Pili-nut oil is an edible oil which has good keeping qualities 

 and the following composition: 



Oleic glyceride 59.6 



Palmitic glyceride ■ 38.2 



Stearic glyceride 1.8 



Unsaponifiable matter 0.2 



Total 99.8 



We wish to express our thanks and appreciation to Mr. Arthur 

 F. Fischer, director of the Philippine Bureau of Forestry, for 

 the material which he kindly supplied for this investigation and 

 he has given. 



W. F., and Jamiesdn, G. S., Journ. Am. Chem. Soc. 42 



