2,3-Dichloro-5,6-dicyano-1,4-benzoquinone as a redox titrant |
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Authors: | A M El-Brash Laila A El-Hussain |
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Institution: | (1) Chemistry Department, Girls’ College of Science, 838 Damman, Kingdom of Saudi Arabia |
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Abstract: | An oxidimetric titrant, 2,3-dichloro-5,6-dicyano-1,4-benzoquinone in anhydrous acetic acid is used for the semimicro-determination
of hydrazine hydrate, phenylhydrazine hydrochloride, isoniazid and iproniazid phosphate in pure forms as well as in some pharmaceutical
preparations containing isoniazid and iproniazid phosphate. The end point was detected potentiometrically using a platinum-calomel
combination electrode. The results obtained are compared statistically with those obtained by the official methods and they
are in good agreement. |
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Keywords: | 2 4-Dichloro-5 6 dicyano-1 4-benzoquinone Hydrazine hydrate Phenylhydrazine hydrochloride Isoniazid phosphate Titrimetry Dosage forms |
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