zinc dinitrate in sulfolane Kinetics; Rapid nitration of naphthalene by N2O4 in dry sulfolane catalyzed by Zn(NO3)2 at 298 K.; Anal. by gas chromy., electrochemistry and Raman spectroscopy. Total yield of the 2 isomers (7.5-29percent) is depending on react. time (10-60 min) and on concn. of the catalyst. Isomer ratio α:β = 19 after 30 min.;
