Silicon with Alcoholic Radicals. 321 
acid was resorted to in order to purify the p incipal product 
i lorated product, 
and of silicic ethyd, which remain insoluble. The solution in 
h 
This liquid proved to be the acetate derived from silicic ethyd 
by the reaction which is represented of 5 following equation : 
Si0;H,Cl+ KC,H,0,=SiCsH,C,H,0,+KCL. 
It may be considered as an acetic ether, in which the residue 
SiC.H,, plays the part of monoatomic radical hits 0. 
At first the method of purification with sulphuric acid was not 
employed and the range of temperature at which the ether dis- 
tilled was larger. The following analyses were made of such 
products : 
I Boiling-point=200°-210°—Substance=0°2225 grms.; CO = 
4845 grms.; H,O=0-2278 grms. 
IL Boiling-point=209°-215°—Substance=02748 grms.; OCO.= 
— _ 05900 i =0°2755 grms. 
Ii. Boiling-point=215°-225°—Substance=0°2940 grms.; CO.= 
0°6385 grms.; H,O=0-3100 grms. 
AV. Boiting-point=219°-224°-—Substance=0'2018 grms.; CO.= 
0°4335 grms.; H,O=02115 grms. 
1. IL. Ii. IV. Calculated for SiCsHi9C2H,02. 
C=59°38 58-66 5923 58°78 59-40 
H=1187. 1145 = «1171 ~~ «11-67 10°89 
After the treatment with sulphuric acid a perfectly pure prod- 
Uct was obtained. 
: ong point =208°-214°—Substance=0°2190 grms.; CO,= 
4790 grms.; H,O=0-2210 grms. 
IL Boiling-point = 909°-210°—Substance=0'2540 grms.; COj= 
975560 grms.; H,0=0-2580 grms. 
zi IL. Calculated for SiCsHisC2H30s. 
59°65 59-69 59°40 
11°21 11-28 10°89 
_ The results of an elementary analysis are not very decisive of 
the urity of a compound of this nature, and the best means of 
_ Obtaini true composition of the ether of an acid is afforded 
as by its saponification with caustic potash. 
_ at. Jour. Sct.—Szconp Serres, Vo. XLIX, No. 147.—May, 1870. 
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