CAJ | 학술논문

通过测定几种自制样品KMnO。的纯度，总结出适合于“大一”新生实验的测定KMnO4纯度的方法。在酸性（1m01．L^-1H2SO4）条件下，以草酸钠为基准物标定所配制样品KMnO4溶液的浓度，温度控制在55。85℃。从而计算出KMnO4的含量。
통과측정궤충자제양품KMnO。적순도，총결출괄합우“대일”신생실험적측정KMnO4순도적방법。재산성（1m01．L^-1H2SO4）조건하，이초산납위기준물표정소배제양품KMnO4용액적농도，온도공제재55。85℃。종이계산출KMnO4적함량。
Obtained an optimum measuring method of the purity of potassium permanganate by determin- ing the purity of several potassium permanganate. And the measuring method is appropriate for experiment in freshman. The optimum measuring method is as follows： sodium oxalate was used as primary standard to standardize potassium permanganate solution in strong acidic condition （1 mol·L-1H2SO4）, the temperature of titration control in 55- 85℃