70 Royal Society :— 
and not glycol, when this substance is acted upon by a solution of 
potash. The following equation will explain the reaction :— 
C,H K C,H,0, } 
Cio, | +24 | A= + | 0,4K Cl+C, H, 0,420. 
Cl 
Action of Chloracetine of Glycol on Butyrate of Silver —Formation 
of Butyroacetate of Glycol. 
Equivalent quantities of chloracetine and butyrate of silver were 
exposed in a balloon with a long neck to a temperature ranging be- 
tween 100° and 200° C., till all the silver salt had been converted into 
chloride. The product was then digested with ether, filtered, and 
the filtered liquor submitted to distillation. As soon as all the ether 
had been driven off, the thermometer rose rapidly to 180°, and be- 
tween that temperature and 215° almost the entire quantity passed 
over. This was fractioned, and the portion distilling between 208° 
and 215° was set apart for analysis. The numbers obtained lead to 
C,H, 
the formula C, H, O, O,, as will be seen from the following per- 
centage Table ee 
Theory. Experiment. 
———————— 
i Il. 
Dae et. oo ty 54°31 55°58 
Ss 8°04 8°20 a 
Oe. e079 ae 
100-00 
I also made a determination of the acids by heating a weighed 
quantity of the ether with hydrate of baryta in the usual manner. 
The quantity of sulphate of baryta obtained indicated 2°2 equivalents 
of acid for one equivalent of the substance analysed. The excess of 
acid was probably owing to the presence in the ether of a trace of 
free butyric acid. The following equation will explain the reaction 
which causes the formation of this compound :— 
C,H C,H 
C,H, 0.} 0,40 Ag! fOsC H, 0. O,+Ag Cl. 
Cl 
In many reactions chlorine replaces, and is replaced by, H+O,; in 
this it is replaced by the group C, H, O, (equivalent to one atom of 
hydrogen) +0,,. : 
This ether, which I may call butyroacetate of glycol, has a bitter 
pungent taste. It is insoluble in water, but soluble in alcohol. It is 
specifically heavier than water, It is a very stable body,—solution of 
potash, even when boiling, effecting its decomposition with difficulty. 
I have no doubt that many analogous compounds may be prepared 
in the manner I have just described. 
Action of Chloracetine of Glycol on Ethylate of Seda. 
In the hope of forming a compound intermediate between diace- 
