366 



Boiled with an alcoholic solution of naphtylamine, this compound 

 readily reproduces naphtylsulphocarbamide, which by its insolubility 

 is easily distinguished and separated from the sulphocyanide. 



Gently heated with phenylamine, the new sulphocyanide gives 

 rise to the formation of a crystalline compound, of properties very 

 similar to those of the naphtylsulphocarbamide. This new body is 

 phenyl-naphtyl-sulphocarbamide*, containing 



(C 2 S 2 )"] 

 C 34 H 14 N 2 S 2 =C 12 H 5 ,C 20 H 7 IN,. 



H 2 J 



Naphtylcarbamide, as obtained by the action of potassa on the 

 corresponding sulpho-compound, or by the distillation of oxalate of 

 naphtylamine, is likewise powerfully attacked by anhydrous phos- 

 phoric acid. Among the products of distillation a compound is 

 found, which, by its chemical properties, is readily identified as 

 cyanate ofnaphtyl. 



C 22 H 7 N0 20 =C 2 H 7 ,C 2 N0 2 , 



although the small quantity in which this body is produced by far 

 the greater amount of the naphtylcarbamide being charred by the 

 action of anhydrous phosphoric acid has hitherto prevented Mr. 

 Hall from fixing the nature of the compound by an analysis. 



* By the action of sulphocyanide of phenyl upon naphtylamine, I have ob- 

 tained a crystalline compound very similar in its general characters to the body 

 which Mr. Hall procures by the action of sulphocyanide of naphtyl on phenyla- 

 mine. This substance likewise contains 



(C 2 S 2 )"j 



C 34 H 14 N 2 S 2 = C 12 H 5 , C 20 H 7 > N 2 , 

 H 2 J 



for 



C w H 5 H 2 N+C 20 H 7 C 2 NS 2 = C 20 H 7 , H 2 N+C 12 H 5 , C 2 NS 2 = C 34 H 14 N 2 S 2 . 

 Are these two bodies identical, or only isomeric ? [A.W.H.] 



