276 Chemistry and Physics. 
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i 
is then by an elevation of temperature decomposed into a carbonate 
and aniline. The action of sulphuric acid is equally characteristic ; 
sulphanilic acid and sulphate of ammonia are formed with the evolution 
carbonic acid ga 
C, H, N, 04+2SH,0,=CO,+C, H, NSO,-++8(H, H, N) O, 
This body sustains a close relation to urea which is truly carbamid ; 
carbonilamid is urea in which the residue of an equivalent of aniline 
replaces that of one of ammonia. To represent this by the abbreviated 
formulas of M. Laurent — 
Am=(H, N+-H Am-?=(H, N+H)—H, 
An=(C, H, N++H) An~?=(C, H, N+H)—H, 
Urea, (carbamid) ...... C Am~? A~? O=C, H, N,O 
Carbonilamid, ............ C An-? Am~? 0—C, H, N,O 
Like urea the new substance is readily soluble in water, alcohol and 
ether; the alcoholic solution decomposes spontaneously, but the watery 
solution gives fine colorless prisms of a fresh taste like nitre. The 
very sparingly soluble. It combines also with the nitrate of silver and 
the bichlorid of mercury ; the chloroplatinate crystallizes in beautiful 
orange colored prisms. T. S. Hunt... 
2. On the Products of the dry distillation of Benzoate of Limes 
‘by G. Cuancet, (Compt. Rend. des Trav. de Chim., March, 1849, p.87. 
—According to the researches of M. Peligot, the result of this distilla- 
tion is a liquid, which he named benzone, and which corresponds to 
acetene, while carbonate of lime remains as a residue ; he also recog- 
nized a portion of benzene and a hydrocarbon which he regarded as 
po thing aud which seemed to be secondary products of the decom- 
position. 
whole process. When the dried salt is heated, the decomposition is 
complete at a temperature near low redness; along with the inflamma- 
ble gases is obtained a brown liquid heavier than water. By distilla- 
tion, a small quantity of benzene is separated ; but the purification of 
the residue by this process was found impracticable. When submitted 
to the aetion of strong nitric acid, it evolves red vapors and ignites ; if 
the action is now earried too far, a brown viscid mass results, insoluble 
