281 



stalline, slightly yellowish iodine-compound is obtained, which may 

 be dried without decomposition at 100. 



On analysis, this iodine-compound was found to have the remark- 

 able composition 



Treated with oxide of silver, the solution of the iodide yields a power- 

 fully alkaline liquid, possessing all the characters of the class of 

 bodies of which hydrated oxide of tetrethylammonium is the type. 

 On adding hydrochloric acid and bichloride of platinum, this liquid 

 furnishes a pale yellow amorphous platinum-salt containing 



C 34 H 21 N 2 Cl, PtCl 2 = 16 9 C 2 H 3 Cl, PtCl 2 . 



^16 "fi ^ J 



A repetition of this experiment in the ethyl-series has given perfectly 

 similar results. On account of the less powerful action of iodide of 

 ethyl, the reaction requires longer digestion. The iodide formed is 

 less soluble in boiling water than the corresponding methyl-com- 

 pound, and therefore more difficult to separate from any ethylene- 

 phenylamine which may have remained unchanged. When pure, the 

 new iodide is a yellowish white substance crystallizing in needles. 

 It fuses in the water-bath without decomposition to a yellow oil, 

 which solidifies on cooling into a brittle crystalline mass. 



Oh analysis, numbers were obtained corroborating in every respect 

 the results furnished by the methyl- series. The iodide contains 



Like the methyl-compound, it is readily decomposed by oxide of 

 silver ; and the powerfully alkaline solution yields, with hydrochloric 

 acid and bichloride of platinum, a salt of exactly the same appear- 

 ance as the salt of the methyl-series. This platinum-salt was found 

 to contain 



C 36 H 23 N 2 Cl, a H N 



The action of iodide of methyl and ethyl upon ethylene-phenyl- 

 amine, although different from what might have been anticipated, 

 nevertheless appears to fix in an unequivocal manner the state of 

 substitution of this base. It is obvious that ethylene-phenylamine no 

 longer contains any replaceable hydrogen, and consequently that the 



