摘要
采用酸性法对水质中高锰酸盐指数进行了测定,分析了影响其准确测定的因素,探讨了反应体系酸碱度、高锰酸钾标准溶液浓度、加热反应时间、滴定温度及滴定时间对酸性高锰酸盐指数准确测定的影响。实验表明:当反应体系的pH值小于2.0、高锰酸钾标准溶液浓度在0.0100mol/L左右、加热反应时间为30min、滴定温度保持在70℃～80℃、滴定操作时间控制在2min内时,酸性高锰酸盐指数测定的准确性较高。
Potassium Permanganate Index of the water was determinate by the acidity method. The article analyzes the factors influenced while is required to mensurate actually and discusses PH, concentration of potasslum permanganate standard solution, heating time, titration temperature, and titration time which influenced the accurate determination of Potassium Permanganate Index. The results indicated that the optimized determination conditions were PH. value less than 2.0, concentration of potassium permanganate standard solution slightly less than 0. 0100mol/L, heating time 30min, titration temperature 70 - 80℃ , titration completed in 2 min.
出处
《地下水》
2010年第1期111-112,共2页
Ground water
关键词
酸性高锰酸盐指数
测定
影响因素
探讨
Potassium Permanganate Index
Determination Results
Influence and Study
