Donnan — On the Reactivity of the Alky I Iodides. 



197 



Table 1. — Constancy of Bimolecular Velocity-Coefficient. 

 N 

 40 



N N 



|jj CH 3 I ; — AgN0 3 ; Solvent, Ethyl Alcohol ; Temp. 24-5°. 



These velocity-coefficients provide us with exact numbers 

 wherewith to compare the relative reactivities of the different 

 alkyl iodides, as measured in alcoholic solution by silver nitrate. 

 The following table gives the values of these coefficients as deter - 



N 

 mined in jj- equivalent molecular solution at 24*5° for the iodides 



of methyl, ethyl, w-propyl, w-butyl, isobutyl, and isoamyl in both 

 ethyl and methyl alcohol as solvent. 



Table 2. — Reactivities of Alkyl Iodides, as measured by 

 AgN0 3 in Alcoholic Solution. 



SCIENT. PROC. U.D.S., VOL. X., PART II. 



