测定工业用氢氧化钠主含量的方法对比分析  

Comparative analysis of methods for determination of main content of sodium hydroxide

作　　者：糜贵廷[1] 么春阳[1] MI Gui-ting;YAO Chun-yang(Tianjin Dagu Chemical Co.Ltd.,Tianjin 300455)

机构地区：[1]天津大沽化工股份有限公司,天津300455

出　　处：《天津化工》2020年第4期57-59,共3页Tianjin Chemical Industry

摘　　要：目前测定工业用氢氧化钠中氢氧化钠和碳酸钠含量主要有两种方法:化学手动滴定法和使用自动电位滴定仪的仪器法,而自动电位滴定仪法主要有两种方法:动态滴定法和终点滴定法。对以上几种方法展开对比,实验结果表明自动电位滴定仪法比化学手工滴定法更有优势,而动态滴定法比终点滴定法更有优势。At present,there are two main methods to determine the content of sodium hydroxide and sodium carbonate in industrial sodium hydroxide:chemical manual titration and instrument method using automatic potential titrator,while automatic potential titrator also has two mainstream methods:dynamic titration and stop end-point titration method.The above three methods are compared.The experimental results show that automatic potential titrator is better than manual titration.The dynamic titration method has more advantages than the stop end point titration method.

关 键 词：手动滴定法 自动电位滴定仪滴定法 动态滴定法 终点滴定法 

分 类 号：TQ114.26[化学工程—无机化工]