62 



ORGANIC AGRICULTURAL CHEMISTRY 



The following table of the more important animal and vege- 

 table fats and oils gives their melting points and the esters 

 present. 



TABLE II 



Important Fats, Oils and Waxes 



EXPERIMENT STUDY XV 



Esters or Ethereal Salts 



(i) Esterification. Test for acetic acid or its salts, (a) To 5 c.c. 

 of 10 per cent acetic acid add an equal volume of ethyl alcohol. Note 

 odor of mixture. Now add about i c.c. of sulphuric acid, shake care- 

 fully and warm. Note odor now and compare with the odor of the 

 mixture of acid and alcohol. The fruity odor is due to the formation 

 of the ester ethyl acetate as in the reaction : 



