在缓冲溶液中探究高锰酸钾与草酸的反应

Reaction of Potassium Permanganate and Oxalic Acid in Buffer Solution

以硫酸氢钠-硫酸钠缓冲溶液为反应介质,研究了温度、溶液pH、高锰酸钾浓度以及草酸浓度等因素对高锰酸钾与草酸反应的反应速率的影响.研究发现,升高温度、降低溶液pH(即增大氢离子浓度)以及增大草酸浓度均能加快反应速率,而高锰酸钾浓度对反应速率的影响规律性不强.

This paper studied the effects of temperature,pH,concentrations of potassium permanganate and oxalic acid on the rate of reaction between potassium permanganate and oxalic acid in the buffer solution consisting of sodium bisulfate and sodium sulfate.It was found that increasing the temperature,decreasing the pH or increasing the concentration of oxalic acid could accelerate the reaction rate,while the effect of the concentration of potassium permanganate on the reaction rate was not obvious.