338 Friedel and Crafts on the Ethers of Silicic Acid. 
II. Substance, weight, - - - - 0°4480 gr. 
Bing. Sy RB ee om, fy, EEO 
III. Substance, weight, - - - - 0°9325 “ 
ES Ee a ee ae ee a 
Theory. 
“3 Il, ul. $i,Cl,,(CH,)20.: 
0, 14°85 14:90 
H, 3°70 3°72 
Si, 17°68 17°39 
Cl, 44-28 44°10 
Density of vapor =5°66. Theory 5:57. 
Difference between 2 weights of bulb, - 0°8755 gr. 
Temperature of balance, - - - 20° 
* “oil-bath,  - - . 182°5 
Barometric height, —- - - - 761°4 mm. 
Capacity of bulb, = - - - - 272°75 cc 
Air remaining, - . - 0°5 ce. 
The density of liquid at 0°=1:2595. The physical properties 
hydrine. 
cule of the dichlorhydrine during twelve hours at 220°. It is 
formed much less easily than the preceding bodies; even after 
the tube had been heated so long a time, a portion of the chlorid 
of silicium remained intact. The principal product distilled at 
near 84°. After several fractionated distillations, the portion 
boiling at 82°-86° was separated and analyzed. 
I. Substance, weight, - = - : 0°2980 gr. 
SOs) aa Ea eS yes SORE ™ 
HiGy 6 ese Eo eee 
TI. Substance, weight, -  - - - 02510 “ 
Ops 45 ee ae ODEO + 
Til. Substance, weight, - - - - 04105 “ 
ies eo tesa ye es TOO 
Theory 
I. ul I SiC],€H,9° 
C, 7-29 7 
H, 181 1:81 
Si, 17-05 16-92 
Cl, 64°46 64:35 
Vapor density =5°66. Theory, 5°73. 
€ density was taken by the method of Gay Lussac. 
Weight of substance employed, . 0-445 gr. 
Temperature of the oil-bath, - -  134°5 “ 
Volume of vapor, - z “ - 109°0 cc. 
Height of barot - 759 mm. at 23°°5 
ign meter, - - 
Height of the mercury in the bell glass 
pot 
