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本文首次报道了铁氰化钾在室温下与碘化钾、硫化钾的固相氧化还原反应,实验发现在固相下铁氰化钾与碘化钾混合后,生成单质碘和亚铁氰化钾,而在溶液中该反应是反方向进行的.实验还发现,在固相下铁氰化钾与还原剂硼氢化钠不反应,而在溶液中,该反应却能进行.对反应机制进行了初步探讨.
This paper reports for the first time the solid-state redox reaction of potassium ferricyanide with potassium iodide and potassium sulphide at room temperature. It was found that potassium iodide and potassium ferrocyanide were formed after potassium ferricyanide and potassium iodide were mixed in the solid phase. However, In the solution, the reaction proceeded in the opposite direction.The experiment also found that under the solid phase, potassium ferricyanide and sodium borohydride do not react, but the reaction can proceed in the solution.The reaction mechanism was preliminarily discussed.