636 



and 



CHI TT 



11 lN + H 2 O 2 + NO 5 HO=H |N + C 10 H 12 O 2 +NO 5 HO. 



The free nitric acid present converts the phenylic alcohol into 

 nitrophenasic acid, and the amylic alcohol into nitrite of amyl. 



3. Action of Nitric Acid on Ethylaniline. 



Ethylaniline was treated in the same manner as amyl aniline. The 

 platinum-salt of the chloride which was soluble in absolute alcohol 

 gave in two experiments 39'6 and 39*5 per cent, platinum. The 

 percentage of platinum in chloroplatinate of ethylamine is 39*3. 



The platinum-salt of the chloride which was insoluble in abso- 

 lute alcohol gave 44 per cent, platinum, which agrees with the 

 number required for the chloroplatinate of ammonia. 



4. Action of Nitric Acid on Diethylaniline. 



Diethylaniline was treated with dilute nitric acid (I part of acid to 

 4 of water), and heated till the temperature reached 54 C., when, 

 on being left to itself, it soon became turbid, and the temperature 

 rose about 10 C. After a while the solution cleared itself again, 

 but remained very dark. When quite cold, it was filtered from the 

 nitrophenasic acid, and the filtrate was treated in the same manner 

 as described in Experiment 2. The solution of the chlorides (5-6 

 grms. were obtained from about 50 of diethylaniline), which were 

 soluble in absolute alcohol, was partially precipitated with bichloride 

 of platinum (precipitate No. 1); then another portion was precipi- 

 tated, which was not used ; after this, more bichloride was added 

 (precipitate No. 2) ; and lastly, an excess of bichloride was added 

 (precipitate No. 3). The platinum found in the three precipitates 

 was 



No. 1. No. 2. No. 3. 



39'2 per cent. 35*5 per cent. 35'4 per cent. 



The chloroplatinate of ethylamine contains 39*3 per cent., and of 

 diethylamine 35'3 per cent, platinum. A platinum-salt made with 

 chloride insoluble in absolute alcohol, gave 44'2 per cent, platinum, 

 which is exactly the amount contained in the chloroplatinate of 

 ammonia. 



