OF ARTS AND SCIENCES. 125 



soda, acidifying, and washing the resulting yellow precipitate 

 thoroughly. 



0.1571 gram substance gave 0.2986 gram C0 2 and 0.0577 gram H 2 0. 



The substance melts between 158°-164° with decomposition, and 

 is identical in every respect with a phenylhydrazone of mesoxalic 

 acid, which Elbers first obtained from mesoxalic acid and phenyl- 

 hydrazine, and which has since been obtained in other ways by 

 R. Meyer* and v. Pechmann.f 



That not a trace of oxanilchloride imidechloride, 



x CO-C1 



is formed by the action of phosgene on phenylisocyanide, was 

 proved as follows : the imidechloride just named must give on 

 treatment with water oxanilic acid, 



CH.N-C 0H 



and of this substance not a trace could be found. In order to be ab- 

 solutely certain, oxanilic acid was made by the method of Klinger, $ 

 as well as that of Aschan, § and thus its properties known by 

 actual experience. Incidentally it may be observed that on treat- 

 ing oxanilethane, 



C 6 H 5 N=C OH 



OR 



with alcoholic potash, according to the method of Klinger, J a new 

 unknown oxanilic acid was invariably obtained. It is readily 

 soluble in hot water, but very difficultly soluble even in hot ben- 

 zine; it crystallizes in needles, and does not melt at 210°. This 

 is probably a polymeric modification, because in other respects the 

 behavior is like that of oxanilic acid; it gives, for example, with 



* Ber. d. chem. Ges., XXIV. 1243. t Ibid., XXIV. 867. 



t Ann. Chem. (Liebig), CLXXXIV. 267. 

 § Ber. d. chem. Ges., XXIII. 1820. 



