Use of vitreous carbon as a working electrode in coulometric titration of potassium hydrogen phthalate |
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Authors: | Jennings V J Dodson A Tedds G |
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Institution: | Department of Chemistry and Metallurgy Lanchester Polytechnic Coventry, U.K. |
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Abstract: | The use of a vitreous carbon electrode as a cathode in the amperostatic coulometric titration of aqueous potassium hydrogen phthalate solution is described. It is shown that 10 mg of the phthalate can be titrated with a precision better than 0.5%. Current-voltage curves for platinum and vitreous carbon cathodes show that there is an overpotential on the latter relative to the former. |
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