CCLXI.—The colour and constitution of diazonium salts. Part III. The diazo-derivatives of 2 : 7-naphthylenediamine

ALTHOUGH the diazo-derivatives of the diamines of the benzene and diphenyl series have been extensively studied, owing largely to the circumstance that in many instances these products are of considerable industrial importance, yet comparatively little attention has been directed to the diazonium salts of the naphthylenediamines.