|344-9 18-9 357-7 744-8 119-64 



Organic Bodies containing Metals. 249 



One volume of absolute alcohol, at 19° C. and 732*6 mm. 

 pressure, absorbed -175 vol. of this gas. 



II. In Combustion Eudiometer. 



Difference Corrected vol. 



Observed of mercury, at 0" C. and 1 



volume. Temp. level. Barom. metre press. 



^°?rf,tf^''"'"^y 126-7 18-9C. 595-1 744-9 15-83 

 imoist) • * J 



Volume after admis- 

 sion of (moist) 



""tritn^'I^^S'S 18-9 408-7 744-5 88-44 

 ""toro/cOMdryiJ^eO-^ ^^'^ 446-1 744-3 72-78 

 ""IrofHCd^rVoS-^ 18-5 24-6 741-3 473-66 



^°ir'rfnfir^'°'Vl3-0 18-6 193-6 741-1 255-35 

 sion imoist) . j 



These results correspond almost exactly with those yielded by 

 hydride of methyle, 1 vol. of which requires 2 vols, of oxygen 

 for combustion, and generates 1 vol. of carbonic acid. 



Volume of Oxygen 



combustible gas. consumed. CO^ generated. 



15-83 31-04 15-66 



1 : 1-96 : '99 



By the action of zinc upon iodide of methyle, therefore, two 

 distinct decompositions take place, viz. 1st, the decomposition 

 of iodide of methyle by zinc with the production of iodide of zinc 

 and methyle, 



c^H^n _rc2H^ 



Zn J--\ZnI, 



and 2nd, the decomposition of iodide of methyle by zinc, with 

 the formation of iodide of zinc and zincmethylium, 



C2H3I\__ rC^H^Zn 

 2Zn J" L Znl. 



Zinccethylium. — This body is formed under precisely the same 

 circumstances as zincmethylium, iodide of sethyle being substi- 

 tuted for iodide of methyle ; it is a colourless and transparent 

 liquid, refracting light strongly, and having a peculiar penetra- 

 ting odour ; it is less volatile than zincmethylium, and is not so 

 readily prepared pure, owing to its retention of a small quantity 

 of sethyle gas in solution ; its affinities are also somewhat weaker 

 than zincmethylium, and it only takes fire in air spontaneously 



Phil. Mag. S. 4. Vol. 5. No. 32. April 1853. S 



