1893-94.] 
Dr Walker on Hydrolysis. 
263 
Sodium Salt of Ethylacetoacetic Ether. 
Time from beginning. Titre. 
0 [ 12 - 20 ] 
2 6-53 
4-5 4-27 
6 3-29 
8 2-47 
10 2-03 
37 0-78 
97 0-42 
It appears from these numbers that the saponification proceeds 
much more rapidly in the case of ethylacetoacetic ether than in the 
case of acetoacetic ether, so that we must conclude that the former 
behaves as a much weaker acid than the latter. This conclusion 
is borne out by determinations of the electric conductivity of their 
aqueous solutions which have been performed by Walden.* His 
results for 25° are as follows : — 
Molec. Conduct. 
Dilution. Acetoacetic Ether. Ethylacetoacetic Ether. 
128 0-92 0-068 
256 0-94 0-070 
The same difference between the two ethers thus appears whether 
we consider the rate of saponification or the electrical conductivity 
Jour. Russ. Chem. Soc., xxiii. p. 639. 
