Molecular Refraction of Isomerizable and of Unsaturated Acids and of Their Salts.
A. HANTZSCH AND K. MEISENBURG. Ber., 43, 95-105.--The mol. refraction of nitromethane salts could not be determined, on account of their sparing solubility in alc. and in MeOH and because of their instability. Unless otherwise stated, the determination mentioned below were made in alc. The figures refer to the mol. refraction of the various compounds for the (D) lines. Nitroethane, 16-83; K salt, 17.85. Nitropentane, 30.57; K salt, 32.15. These results confirm Brühl's conclusion that in the case of aliphatic compounds the solvent has practically no effct on the mol. refraction and they show also that the salts possess a constitution different from that of the parent substance. p-Bromophenol, 36.67; Na salt, 37.45. p-Chlorophenol,33.42; Na salt, 34.28. It is uncertain whether the differences between these phenols and their.........
The rest of the abstract discusses phenols and isn't related to nitroalkanes.