Chemistry and Physics. 277 
{notation of ——- which is exactly the composition that theory 
assigns to be 
°C, H, CaO, =CO, Cate. H.,. 2 
Its claim to be considered as the acetonid of benzoic acid is shown 
by the fact that under the influence of potash-lime, it discedes at about 
into benzoate of potash and pure eg abi eo evolving a 
trace of hydrogen gas or any other foreign substa 
C, Hy) O+KHO=C, H, KO “46, i, 
M. Chancel has given it the name of benzophenone, to show at once 
its relation to the befenic and: phenic seas while the termination re- 
calls its place among the acetonids. It is insoluble in water but soluble 
in alcohol and ether; from a mixture of ies bo it is obtained by spon- 
taneous evaporation in large tra tiga monoclinic prisms, of a slight 
amber tint. It fuses at 46° and boils at 315° C., erie without al- 
teration ; its odor is fragrant, Aeon be resembling benzoic ether. 
Neither nitric nor sulphuric acids affect it in the cold ; i leeging nitric 
acid by heat converts it into an oily liquid, which is dissolved by ether 
and deposited again almost immediately as a yellowish crystalline pow- 
er. This is binitric benzophenone, C,, H,(N,.0,) 
several hours with fuming nitric acid and then diluted with water. e 
oily residue is mixed with ether, and after a time deposits a crystalline 
matter which was washed with a mixture of alcohol and ether. Itisa 
mixture of binitrie benzophenone, with some foreign matters which are 
very difficultly separable. By digestion in the cold with a mixture of 
hydrosulphuret of ammonia, alcohol and ether, the principal part is 
dissolved, and after twenty-four hours the vessel is filled with needles 
gages an oil possessing the properties of an alkaloid. 
oe ngfor and crystallizable ; the chloro- 
platinate i is Cys eh and Cl), a compound with two 
the aoe being the substance intermediate between flavine and urea. 
alkaline product prewrne by the action of potash upon this new 
kao will then be no other than aniline. 
ong the — found in the crude liquid which yields the ben- 
scelneenes. are two solid carbonates of hydrogen isomeric with naptha- 
lene, one fusing a 92° and the other at 65° C.; the latter is obtained 
z 
