718 PRELIMINARY OBSERVATIONS. 



OLEFIANT GAS AND BODIES DERIVED FROM IT .BY THE 

 ACTION OF CHLORINE. 



Olefiant gas ..... C 4 H 3 



First product, Dutch liquid . . C 4 H 3 C1 +HC1 



Second product .... C 4 H 2 Cl 2 -f HC1 



Third product . . . C 4 H C1 3 H-HC1 



Last product, perchloride of carbon . C 4 C1 6 



HYDROCHLORIC ETHER (CHLORIDE OF ETHYL) AND BODIES 

 DERIVED FROM IT BY THE ACTION OF CHLORINE. 



Hydrochloric ether C 4 H 5 C1 



Monochlorinated ditto C 4 H 4 C1 2 



Bichlorinated ditto C 4 H 3 C1 3 



Trichlorinated ditto C 4 H 2 C1 4 



Quadrichlorinated ditto C 4 H C1 5 



Perchloride of carbon C 4 C1 6 



It appears from the second table that hydrochloric ether is 

 affected at once by two atoms of chlorine, one of which seizes 

 an atom of hydrogen and removes it in the form of hydrochloric 

 acid, while the second atom of chlorine enters into the com- 

 pound remaining, which Regnault distinguishes as monochlo- 

 rinated hydrochloric ether, the name having reference to the 

 mode of derivation of the compound and not its composition.* 

 The latter body when exposed to chlorine is likewise affected 

 by two atoms, one of which seizes and withdraws an atom of 

 hydrogen, while the other unites with the remaining elements, 

 forming bichlorinated hydrochloric ether. The trichlorinated 

 and quadrichlorinated compounds, and the perchloride of car- 

 bon, which follow, have the same mode of formation ; and as 

 one atom of chlorine is communicated for each atom of hydro- 

 gen withdrawn, the entire number of constituent atoms remains 

 the same, or ten, throughout the series, and the last member 

 differs only from the first, in having 5 atoms of chlorine instead 

 of 5 of hydrogen. To exhibit the complimentary function of 



* " Chlorinated" appears to be a preferable term to chloruretted, to apply to 

 such a compound, as the last is already used in a different sense. 



