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本文考查了 Fe( ) - I- 、Cr( ) - I- 及 Cr( ) - I- - Fe( )体系的反应曲线 ,证明由于 Fe( )的引入 ,体系产生 Cr( )中间体并快速氧化 I- ;通过实验确定 Cr( ) - I- - Fe( )体系的化学计量关系 ,导出了诱导反应的机理及速率方程 ,并通过反应曲线的研究进一步证实了反应机理。对含铬废水中铬的测定起到一定作用。
The reaction curves of Fe () - I-, Cr () -I- and Cr () -I- -Fe () systems were investigated in this paper. It was shown that the Cr () intermediate was rapidly oxidized by the introduction of Fe The stoichiometry of Cr () -I- -Fe () system was determined experimentally, and the mechanism and rate equation of induced reaction were derived. The reaction mechanism was further confirmed by the reaction curve. Determination of chromium in chromium wastewater play a role.