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本文考查了下Ｆｅ（Ⅲ）－Ｉ－、Ｃｒ（Ⅳ）－Ｉ－及Ｃｒ（Ⅳ）－Ｉ－Ｆｅ（Ⅱ）体系的反应曲线，证明由于Ｆｅ（Ⅱ）的引入，体系产生Ｃｒ（Ｖ）中间体并快速氧化Ｉ－；通过实验确定Ｃｒ（Ⅳ）－Ｉ－－Ｆｅ（Ⅱ）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。
The reaction curves of Fe (Ⅲ) -I-, Cr (Ⅳ) -I- and Cr (Ⅳ) -I-Fe (Ⅱ) ) And quickly oxidize I-. The stoichiometry of Cr (Ⅳ) -I - Fe (Ⅱ) system was determined experimentally, and the mechanism and rate equation of induced reaction were derived. The reaction curve was further confirmed by the reaction mechanism.