176 
phatic primary amines are members of a series of mono-substituted am- 
monias, of which the basicity is greater than that of the mother substance. 
Kohler’ isolated a salt having the composition represented by the 
formula C,H,NH,.HgCl. Miiller* investigated double salts of ethyl amine 
with palladium, Jorgensen* those with platinum, Carson and Norton* 
those with uranium, Bailey’ with vanadium, Bonnefoi® with lithium 
chloride, and Hoffman and Marburg’ with mercuric chloride. In most 
cases more than one salt was produced by varying the proportions of 
ethyl amine and the simple salt used. Hoffman and Marburg isolated and 
studied the compounds C,H;NH,.UgCl,, (C.H;NH.).HgCl, and C,H,NH.HgCl. 
Bonnefoi found that by leading the vapor of ethyl amine over dry lithium 
chloride various double salts were produced, the proportion of the con- 
stituents depending upon the temperature. The following compounds 
were formed under the conditions indicated: 
Temp. Formula. Heat of Formation, Calories. 
70° CeHsNHe .LiCl +- 13834 
58°-70° (C2HsNH2)2 . LiCl + 24817 
Ord. to 58° (C2HsN He)s . LiCl + 35387 
It seems probable, in the light of these facts, that at still lower tem- 
peratures other compounds will be present, having a still higher ratio 
of ethyl amine to the original salt; this should be particularly true with 
regard to solutions in liquid, anliydrous ethyl amine. In other words, we 
are here dealing with an application of the mass law, where the tem- 
perature and mass of the reacting substances are to be considered in the 
attempt to solve the problem regarding the composition of the resulting 
compound. We should expect that any solution would contain several 
compounds of the constituents, having a certain average composition which 
would depend upon the temperature and degree of dilution. 
Shinn® tested, in an approximate but not quantitative manner, the ac- 
tion of ethyl amine upon 14 salts, concerning which the following résumé 
is here given: 
1 Ber., 12, 2323. 
2 Ann., 86, 366. 
2 J.prevCh.,. (2) 837501. 
4Am. Ch. J., 10, 220. 
S73. Ch. Soc., 45, 693: 
CC Seo LoD ls 
7Ann., 305, 191. 
§ Loc. cit. 
