RICHARDS AND MOULTON. — CUPRIANILINE SALTS. 89 



III. 0.2009 gram of the substance yielded 0.1842 gram of argentic 



bromide. 



IV. 0.2530 gram of the substance yielded 0.2318 gram of argentic 



bromide. 

 V. 0.1028 gram of the substance gave 0.1313 gram of carbou diox- 

 ide upon combustion. 

 VI. 0.1705 gram of the substance yielded 10.20 cubic centimeters of 

 moist nitrogen at 23° C. and 763.7 mm. pressure. 



Many other similar determinations were made upon other samples, 

 with similar results. 



(2.) CUPRIANILINE ACETOBROMIDE, 



Cu(C6H,N)2(C2H30,)Br. 



This compound is formed with considerable difficulty, for the reac- 

 tion tends to produce a compound containing either little or no acetic 

 acid, or else little or no bromine. For the first time it was formed as 

 follows. Three grams of cupric bromide were dissolved in about fifty 

 cubic centimeters of alcohol, three grams of cupric acetate were dis- 



