工业用氢氧化钠含量测定方法的优化

Optimization of the determination method of sodium hydroxide content in sodium hydroxide for industrial use

介绍测定工业用氢氧化钠中氢氧化钠和碳酸钠含量采用的方法。比较了在测定氢氧化钠含量过程中化学滴定法与减样量配合电位滴定法的优缺点,并用试验数据表明:两种测定方法的准确度和精密度均符合国家标准。

A chemical titration method for the determination of sodium hydroxide and sodium carbonate content in sodium hydroxide for industrial use is introduced. The advantages and disadvantages of chemical titration and those of sample reduction potentiometric titration in the determination of sodium hydroxide content were compared. The accuracy and precision of the two methods were all up to the national standard.