Scientific Intelligence. 275 
ey rise. 
Montreal, May 15, 1849. 
SCIENTIFIC INTELLIGENCE. 
[. CHEmMIsTRY AND Puysics. 
1. Researches upon some derivatives of the Benzoic Series; by G. 
Cuancex, (Compies Rend. des Travaux de Chimie, Juin, 1849, p. 177.) 
—The author has prepared the nitrobenzoic ethers of alcohol and 
wood-spirit, and confirmed their composition by analyses. He has 
found that they crystallize in right rhombic prisms of about 120°, and 
are consequently isomorphous. By the action of ammonia upon the 
vinic ether he obtained the nitrobenzamid which Mr. Field had before 
found by decomposing the nitrobenzoate of ammonia by heat. This 
body is sparingly soluble in water, above all in the cold, but dissolves 
readily in alcohol and ether, and crystallizes from them by slow evapo- 
ration in tables like gypsum. By a solution of potash it is decomposed 
with the evolution of ammonia, and yields nitrobenzoate of potash. 
When nitrobenzamid is dissolved in boiling water and hydrosulphuret 
of ammonia added in sufficient quantity, not the least trace of the amid 
Separates on cooling. The liquid deposits a large amount of sulphur 
after standing a few hours, and by evaporation in a water bath to sepa- 
rate the last traces, the residue dissolved in water and filtered, gives by 
slow evaporation beautiful crystals which give on analysis the formula 
7 H,, N, O, (notation of Gerhardt). It loses an equivalent of water 
at 100° to 120° C., without undergoing any apparent alteration, so that 
its real formula, as is established by its compounds, is 1, N, 0. 
This new substance no longer belongs to the benzoic series (C,), but 
has disceded into the formic (C) and phenic (C,) series, as will be 
seen by the results of its decomposition. It is a double carbonate of 
ammonia and aniline, minus the elements of two equivalents of water, 
CH, O,,C,H,N, H,N=C, H, Nz 0,+2H, O. 
The author has therefore called it carbonilamid. When gently heated 
with a mixture of lime and potash, it evolves in the form of ammonia 
exactly one half its nitrogren: if now the heat be considerably raised, 
Pure aniline distils over and carbonate of potash remains. In the first 
Stage of the process there is evidently the formation of a salt which if 
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