Journal of Chemistry / 2013 / Article / Fig 3

Research Article

Reactions of o,o′-Dihydroxy Azo Dyes with the Third Group M(III) Ions: A Spectroscopic and Electrochemical Study

Figure 3

Absorption spectra of  M Calc 1 in 1 M NaOH; 2 at pH 4.4; 3 at pH 9.5, and 4 with  M of Ga(III) at pH 4.4.

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