This paper discusses the reaction principle and titrimetric operation in defining consistency of potassium permanganate titrant which sodium oxalate is regarded as the basis material.

• 分析了以草酸钠为基准物标定高锰酸钾标准溶液浓度的反应原理,标定操作及温度、酸度、滴定速度等滴定条件对标定结果的影响。