Using Ethyl-4-Amino Benzoate to prepare and analytical studies of Two New Azo Compounds
Keywords:
Azo Compound, Isobestic Points, Acid-Base Properties , Solvent EffectsAbstract
The amin drug ethyl-4-amino benzoate ( benzocaine ) was used for preparation two new azo compounds, with pyridoxine hydrochloride ( B6 ) (A6) and with ventolin ( salbutamol sulphate ) (A7). The two azo compounds were characterized by I.R., mass spectra and visible spectroscopic techniques. the electronic spectra of these azo compounds were investigated in terms of acid-base properties ,which includes establishing isobestic points, determination of protonation and ionization constants at various pH values ( 2-12 ). The effect of solvents of different polarities on the electronic spectra was the subject of the other research. The azo compound ( A7 ) has been also to determination of nitrite .
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