烧碱中控分析中氯化钠含量测定方法的探讨

Discussion on central control analysis method for determination of sodium shloride content in caustic soda production

对汞量法、银量法和改进的银量法对烧碱中控分析中氯化钠含量的测定方法的优缺点进行了对比实验,并进行了讨论。实验结果表明,汞量法和改进的银量法能够降低大量材料成本(年节约10～18万元)、灵敏度高、终点变色敏锐,更适合中控分析。

This paper compared the central control analysis methods of mercurimetric titration and argentometry for determination of sodium chloride content in caustic soda production, discussed their advantages and disadvantages. The results show that the mercurimetcic titration method and argentometry method compiled and improved by the anthor are cost-effective （about 0.1 to 0.18 million yuan per year）, sensitivity high, equivalent point acute for color transformation and more suitable for central control analysis.