[ruttan-roebuck] esters OF ETHYLENE GLYCOL 7 



100 grms. of absolute alcohol dissolves 



1-62 grms. at 0°C. 



5-76 grms at 7-4°. 

 10-67 grms at 16°. 

 24-08 grms. at 25°C. 



Combustions gave the following results: 



C. H, 



Theory 71-93% 12-09% 



Determined I lost 12-01 



II 71-91 12-04 



Analyses for palmitic acid gave: 

 Theory I. 



85-33 85-32 



Di-Margarate [Co H4 (Ci7 H33 02)2 ] is a white crystalline solid 

 giving occasionally needles from ethereal solution, but from alcohol 

 crystallizes in waxy scales similar to the other esters. Its refractive 

 index at 67° is 1-4392. The fused ester has a specific gravity of 0-8605 

 at 67- 1° C. It is slightly more soluble in ether and alcohol than the 

 di-palmitate. 



1^0 grms. of absolute alcohol dissolves 

 0-024 at 0°C. 

 0-101 at 25° 



It melts at 65-5°C. and solidifies at 64-7°C. On analysis it 

 gave 



Theory I. 



Margaric Acid 95-41 95-27 



Mono-Margarate. (C2 H4 OHC17 H33 O2) crystallizes in thin 

 plates from dilute alcohol. Its refractive index at 52° is 1-4440. 

 Is very soluble in both ether and alcohol even at room temperature. 



100 grms. of absolute alcohol dissolves 

 1-72 grms. at 0°C. 



It melts at 50-2°C. and gave on analysis 



Theory I. 



Margaric acid 85 - 99 85 - 62 



