Synthesis of l-(5-Nitro-2-Pyridylazo)-2.7-Dihydroxy-naphthalene and its Color Reaction with Cobalt (Ⅱ)

LIU Bin, BAI Yu-Wei, WANG Xiao-Ling, SUN Jia-Juan

Chem. J. Chinese Universities . 1999, (S1): 370 -371 .