60 



PROCEEDINGS OP THE AMERICAN ACADEMY 



paper, and recrystallization from alcohol with the help of a freezing- 

 mixture. It was dried in vacuo and analyzed. 

 0.1569 grs. substance gave 0.1985 grs. BaS0 4 . 



Calculated for C^CISCN. Found. 



Sulphur 17.43 17.38 



Properties. White, flattened needles, often over an inch long, with 

 a strong, disagreeable smell; melting-point, 17°; does not distil with 

 steam, but seems to be slowly decomposed by it, a few brown drops 

 with a smell like that of benzaldehyd passing over ; mixes with alco- 

 hol, ether, benzole, carbonic disulphide, and glacial acetic acid, but not 

 with water. 



This substance has not been made heretofore : it resembles the cor- 

 responding bromine compound very closely in every thing but melting- 

 point. 



Parachlorbenztlamines. 



These substances have been studied already by Berlin, * who pre- 

 pared them by heating the chlorbenzylchloride with alcoholic ammonia 

 for one week in the steam-bath. The product was worked up by a 

 needlessly complex process, consisting, when stripped of its unneces- 

 sary steps, in separating one portion of the bases by conversion into 

 their chlorides and crystallizing from alcohol, while in the remainder 

 the tertiary amine was destroyed by distillation with bromine and 

 water, and the bromides of the remaining amines separated by crys- 

 tallization. The properties of the tertiary and primary amines, as 

 described by him, are in no way peculiar ; but he obtained four iso- 

 meric forms of the secondary amine, which were themselves undis- 

 tinguishable yellow oils, but differed in the melting-points of their 

 salts, as shown in the following table : — 



These salts also differed in solubility, the a modification being the 

 least, the 5 the most soluble : they were separated by crystallization 



* Berlin, Ann. Chem. Pharm. 151, p. 137. 



