20 J. M. Crajis on Ethers of Arsenic Acid. 
stant boiling points. In fact, y combining the chlorid of 
ever been observ 
The boiling point of the arsenite of ethyl is 166° (no correc-, 
tion). T'wo parts of arsenite of ethyl and one part of chlorid 
of arsenic mix with pa eee of heat, and the pro- 
duct distils constantly at 159°-164° (no correction 
A mixture of equal parts of chlovid of arsenic and of arsenite 
of ethyl ato at 150°-152°. 
A body was also obtained by the action of alcoholate of 
sodium upon aie bromid of arsenic in excess, which contained 
65°75 per cent of bromid of arsenic and 34:25 per cent of 
arsenite of ethyl, and which distilled constantly at 182°-185° 
=~ correction). The ae or bromid of arsenic in all these 
dies combines directly with dry ammonia gas, leaving the. 
pene ether free. 
ARSENITE OF AMYL. 
The arsenite of amyl was ee by the action of the — 
he 
amylate of sodium upon the bromid of arsenic in the same — 
way as was described for the preparation of the arsenite of F 
ethyl. 
e product, however, orinot be purified by distillation in — 
the air, since it decomposes in part at its boiling point, It can, 
however, be purified by dia illation under a pressure of 60 — 
llimeters. e following analysis was aan of a produc 
boiling a 193°-194° (no correction) under a pressure of 60 
milli imete 
Sudtner=0-400 grms. ; CO,=0°7950 grms. ; H,O=0°3578 
Calculated for (O5Hj1)gA803. 
C=53°01 53°57 
H= 9°72 9°82 
