414 DE. E. EEANKLAND’S EESEAECHES ON OEGANO-JIETAIXIC BODIES. 
^ of ethei. 
.ncapable of being etbei 
::irc^“r bi, — 
wae thought that no such difficulty of separation could f " Laration of 
then, in fact, be exactly homologous with ,^,1 mixed with oxide 
pure zincethyl on the large scale. It was found that iodide of ^ 
of methyl, was readily attacked by zinc, even at the temperatui-e of the water , 
“?Zro"by of methyl were placed in the copper digester 
calcium was forced into the digester by a compression pump until it was thoi^li 
?r«: ~ r.," ; — s? « — — — - vr"' 
ffidide of methyl 1 but this was easily got rid of by the additmn <rf a 
which, forming sodiummethyl, reacted upon the lo i e o y 
■r.=S,:.*L 
small residuum only coming over between 4o andlS. Dotn t p ■ 
analysis the same results, viz. 29-69-29-54 per cent, of carbon, and ' 11-' « ^ ' 
of hydrogen. These numbers do not agree with those required foi zincm } ( • 
25-25 caLn and 6-31 hydrogen); 
yielded by two equivalents of zincmethyl and one equivalent of oxide of methyl, 
an 
C 2 H 31 Q 
-Tn TT ' 
Oo -tl-3 
which require 80-49 per cent, of carbon and 7-62 per cent, of hydrogen. This result is 
ffiertfoL exactly hollogons with that obtained by the admixture of i-iiiic etliei with 
the iodide of methyl. mptlivl T have been 
In conclusion, after an expenditure of many pounds o loc i ^ , 
unable to obtain even the smallest quantity of pure zincmethyl by the use of a copp 
diirester. On the other hand, in ethereal solution, a much larger product obt. 
than in the corresponding preparation of zincethyl, owing, no doubt, to the ower emp 
“at"! crysfaLr compound of zincmethyl and iodide of zinc is broken up. 
* Pliilosopiiical Transactions, vol. cxlvii. p. 61. 
t Proceedings of the Eoyal Society, yoI. ix. p. 345. 
