[ruttan-roebuck] esters OF ETHYLENE GLYCOL 9 



Glycol Chloride Stéarate (C2 H4 Cl C18 H35 O2) is a white 

 solid crystallizing with the same habit as the above members of the 

 series. It melts at 48-5°C. and the solidified fused substance is 

 distinctly crystalline. It has a specific gravity of 0-9049 at 49-5°C. 

 and a refractive index of 1-4433 at the melting point. It is much 

 less soluble in alcohol than the monostearate, but more so than the 

 di-stearate. 



100 grms. of absolute alcohol dissolves. 

 0-20 grms. at 0°C. 

 0-28 grms. at 7-4° 

 1-29 grms. at 16° 

 2-10 grms. at 25° 

 3-62 grms. at 29°C. 



Analysis for stearic acid gave 



Theory I. II. 



Stearic acid 81-98% 81-96% 81-35% 



and analysis for chlorine by the sodium peroxide method gave 10-45% 

 while theory required 10-26%. 



Glycol Chloride Palmitate. (C2H4 CI Cie H31 O2) is a white 

 solid crystallizing with the same habit as the others of this series. 

 It melts at 41-5°C. and the liquid has a refractive index of 1-445 

 at the melting point. Its specific gravity is 0-9097 at 46-1° C. It 

 is much less soluble in alcohol than the monopalmitate, but more so 

 than the chloride stéarate. 



100 grms. of absolute alcohol dissolves 



Several attempts were made to prepare the glycol stéarate 

 palmitate by heating together the monostearate and palmitic acid 

 The temperature was varied in the different attempts but the fused 

 product was chiefly distearate and dipalmitate and on account of 

 the similar solubilities of all three bodies, and also because the melting 

 point of the stéarate palmitate was unknown, considerable difficulty 

 was experienced in separating them. A small quantity of a substance 

 was however separated with a melting point of 64 °C. 



