Research Article

Acid-Base Indicator Properties of Synthesized Phenylhydrazones: 4-(2-(2,4-Dinitrophenyl) Hydrazono) Methyl)-2 Methoxy Phenol and 4-(2-(2,4-Dinitrophenylhydrazono) Methyl) Benzene-1,3-diol

Figure 3

UV-Vis spectra of synthesised indicators (a: IND-X; b: IND-Y) in ethanolic/0.5 M NaOH solution. (a) UV-Vis spectrum of IND-X. (b) UV-Vis spectrum of IND-Y.
(a)
(b)