748 



Mr. Gervaise Le Bas on the 



Related Series, 

 [b] The Aliphatic Ethers. 

 A second group of these series is found in the Ethers 



R — — R', which only contain radicles. 

 The most advantageous way of studying them is to begin 

 with the symmetrical compound and then proceed to increase 

 the complexity of one side. We thus keep the complexity of 

 one side constant, and thus have the Methyl, Ethyl, Propyl, 

 &c. Ethers. 



The Methyl Ethers. The Ethyl Ethers. 



Compound. 



W. 



M.V. 



V/W. 



Compound. 



w. 



M.V. 



V/W. 



OH 3 .O.CH 3 ... 



... 17 



6256 



3-680 



C 2 H..O.C,H 3 



29 



106-2 



1 

 3-664 



CH,.O.C 2 H- ... 



.. 23 



84-0 



3-652 



2 H 5 . . C 5 H 7 



35 



128-08 



3-659 



CH 3 .O.C 3 H T ... 



.. 29 



105-1 



3624 



C 2 H-.O.C 4 H 



41 



150-33 



3-666 



CH 3 .O.C 4 H ... 



.. 35 



1275 



3-643 



C 2 H 3 . O . C.H^ ... 



47 



173-22 



3686 



CH 3 .O.C 3 H u ... 



.. 41 



150-2 



3-664 



C 2 H 5 .O.C 6 H 14 ... 



53 



19825 



3-703 



CH 3 .O.C 6 H 13 ... 



.. 47 



173-15 



3-685 



C 2 H,.O.C 7 H 16 ... 



59 



221-32 



3-751 



CH 3 .O.C 7 H 15 ... 



.. 53 



19847 



3-706 



C 2 H- . O . C S H 17 ... 



65 



247-2 



3-803 



CH .O.C,H 17 ... 



.. 59 



2202 



3733 









1 



The other series can be tabulated in the same way. 

 Dobriner, to whom we are indebted for the data, omitted 

 all those with radicles C 5 H U — and C 6 H 13 — , but the 

 essential ones can be supplied by interpolation. 



The data give the following curves, which are in striking 

 contrast with those shown by the esters : — 



v / 

 3-90 



3-80 



3-70 



3-60. 

























The t 



LIPHA 



nc ! 



Ither 



3 













(a) 



Met 

 Eth] 



lyl 



1 

















CO 

 (4 



Prop 

 But' 



fi 

































■^ 





a^ 







^b 





^C 

































10 



30 40 50 



Number of H Equivalents 



60 



