162. = Friedel and Crafts on the Ethers of Silicic Acid. 
II. Substance, weight, - . - . 0°5945 gr. 
8 Wes Se er eee 
III. (Boil. point =104°-106°.) Substance, wt., 0°4235 “ 
gee eer ee ast a es OBTOE 
Be eek ee RIOTS H 
IV. Substance remaining in the bulb after the 
d rminati f 
etermination of the vapor-density, 
eight, - - - - - 0°5465 “ 
ite Soe UNTO 
i I. Ill. IV. Theory. 
GC, 13°46 13°52 13°41 
H, 2°89 2:80. 2°78 
Cl, 59°07 59°33 
Si, 1527 15°58 
The vapor-density =6°378; theory 6:216. 
Difference between two weights of bulb, - = 0°9317 gr. 
Temperature of the balance, Sete 22°°5 
us +. ghey es. TERS 
Barometric pressure, = - - - - 766°6 mm. 
Capacity of bulb, - - - - : 231°5 cc. 
o air remaining. 
The density at 0° =1-291.* 
The boiling points of the above compounds, in which a por- 
tion of the atoms of the peroxyd of ethyl are replaced by chlo- 
rine, represent a series, in which the secondary differences are 
nearly constant. 
i .: 
Monochlorhydrine, - - 157 a * 11°5 
Dichlorhydrine, —- - 137 33 13 
Trichlorhydrine, —- - 104 45 12 
hlorid of silicium, . 59 
- Triethylic monoamylic silicic ether.—The monochlorhydrine 
served to prepare this mixed ether, which is nothing else than 
a normal ethylic silicate, in which one atom of ethyl is replaced 
by amyl. To obtain it, it is sufficient to bring together a mole- 
cule of monochlorhydrine and one of amylic alcohol. The re 
action takes place immediately with evolution of HCl. 
Si €,H os 
3(€,H.) Lo, ie: as } ae {e.tua. 
Cl sttiad 
The liquid commenced to distil at 205°, and almost all passed 
below 230°. The greater part boiled at 216°-225°. The analy- 
sis of different products gaye— 
" hong density of chlorid of silicium at the same temperature we determined 
==1'522. 
