70 
CHEMISTRY: E. C. FRANKLIN 
by the interaction of benzylacetamide and potassium amide; and potas- 
sium phenetol ammonoacetate, CH3CONKC6H4OC2H5, by the inter- 
action of phenetolacetamide and potassium amide. 
The nature of these reactions will be clear from the equation, 
(C6H5)(CH3CO)NH + AgNH2 = (C6H5)(CH3CO)NAg -F NH3, 
which represents the action of acetanilide on silver amide, or in other 
words, the action of an acid ammono ester on an ammono base. 
1 Franklin, Amer. Chem. /., 47, 285 (1912). 
2 Franklin, /. Amer. Chem. Soc, 27, 820 (1905). 
AMMONOBASIC IODIDES OF ALUMINIUM 
By Edward C. Franklin 
DEPARTMENT OF CHEMISTRY. STANFORD UNIVERSITY 
Presented to the Academy, January 9, 19 1 5 
While investigating the action of potassium amide on salts of alumin- 
ium in liquid-ammonia solution it was noted that a considerable amount 
of potassium amide could be added to aluminium iodide solutions with- 
out the formation of a permanent precipitate. Under analogous con- 
ditions in aqueous solutions aquobasic salts are formed. 
The attempt was therefore made to isolate an ammonobasic aluminium 
iodide from a liquid-ammonia solution of aluminium iodide to which 
potassium amide had been added in an amount not quite sufficient to 
produce a permanent precipitate. When a solution so prepared is care- 
fully concentrated a crop of well formed crystals of a compound is ob- 
tained which, after several recrystallizations, gave analytical results 
sharply in accord with the formula, AII3. A1(NH2)3. 6NH3. The equa- 
tion expressing its formation is 2AII3 + 3KNH2 = AII3 . A1(NH2)3 + 3KI. 
The compound is obviously related to ammonia as the ordinary 
basic salts are related to water. It is therefore an ammonobasic salt. 
When sufficient potassium amide is added to a liquid-ammonia solu- 
tion of aluminium iodide to produce a permanent precipitate a second 
ammonobasic salt is formed the composition of which is represented by 
the formula A1(NH2)3 • Al(NHo)2l.NH3. 
