860 BENZOYL. 



1 at. of benzone . . -. C 13 H 10 O 



1 at. of carbonic acid . C O 2 



1 at. of lime .... CaO. 



1 at. of benzoate of lime C 14 H 5 O 3 -f-CaO. 



The crude product of the distillation contains also benzole 

 and naphtaline, of the first of which it is divested by heating it 

 on a water-bath, and keeping it for a sufficient time at 392, 

 and of the second by exposing the liquid thus obtained to a 

 cold of 4, when naphtaline separates. Berizorie is oily and 

 viscid; not altered by nitric acid and hydrate of potash, but 

 decomposed by chlorine and sulphuric acid. (Peligot). 



PRODUCTS OF THE DECOMPOSITION OF HYDRURET OF BENZOYL. 



Hydrobenzamide, C 42 H 18 N 2 , or C 14 H 6 N-.. Hydruret of ben- 

 zoyl is acted upon when mixed with twenty times its volume 

 of a concentrated solution of ammonia in a vessel hermetically 

 sealed, and kept for several hours at a temperature of 104 to 

 J22 (40 to 50 centig.). A crystalline mass of hydrobenzamide 

 is formed, which may be purified from the oil by washing with 

 cold ether, in which hydrobenzamide is insoluble, dissolving 

 the residue in alcohol, and evaporating at the usual temperature, 

 when hydrobenzaroide is obtained in regular crystals. They 

 are colourless octohedrons or rhomboidal prisms, which enter 

 into fusion at 230, and are decomposed by dry distillation 

 leaving a residue of charcoal. The alcoholic solution is con- 

 verted by boiling into ammonia and hydruret of benzoyl. This 

 substance is formed by the abstraction of the elements of 6 

 atoms of water from 3 atoms of hydruret of benzoyl and 2 atoms 

 of ammonia (Laurent) : 



3 (C 14 H 6 O 2 ) and 2NH 3 =C 42 H 18 N 2 and 6HO. 



The whole oxygen of the oil and whole hydrogen of the 

 ammonia separate as water ; the formation of this substance is, 

 therefore, different from that of an ordinary amide. It is, 

 indeed, simply a hydruret of benzoyl, in which the 2 atoms of 

 oxygen are replaced by Nl. 



