Effect of temperature on the determination of aromatic nitro-compounds by coulometrically generated chromium(II) |
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Authors: | Al-Daher I M Kratochvil B |
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Institution: | Department of Chemistry, University of Al-Mustansiriyah, Baghdad, Iraq. |
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Abstract: | The analytical utility of the reaction between aromatic nitro-compounds and electrogenerated chromium(II) can be extended to several previously undeterminable compounds by increasing the temperature of the reaction solution. For some substances the stoichiometry of the reduction is changed; for others the rate of reaction, along with precision and accuracy, is appreciably increased; in at least one instance the reaction becomes less satisfactory as an analytical method. Temperature is thus shown to be an important variable that may explain differences in previously reported stoichiometries. |
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