铝酸钠溶液中苛性碱、碳酸碱和氧化铝含量的连续测定  

Determination of Caustic Hydroxide,Sodium Carbonate and Alumna in Sodium Aluminate Solutions

作　　者：贺晓唯[1] 毕诗文[1] 周金海[2] 

机构地区：[1]东北大学材料冶金学院,沈阳110004 [2]沈阳化工学院应用化学学院,沈阳110142

出　　处：《吉林大学学报（理学版）》2006年第5期821-823,共3页Journal of Jilin University:Science Edition

基　　金：国家自然科学基金(批准号:50273038)

摘　　要：利用自动电位滴定法,选择葡萄糖酸钠配合铝酸钠溶液中的铝,在滴定碱总量时保持氢氧化铝稳定而不沉淀析出,不干扰测定.再以氟化钾置换配合铝酸钠溶液中的铝,同时放出与铝等化学计量的OH-,通过酸碱滴定,实现了在铝酸钠溶液中对苛性碱、碳酸碱和氧化铝含量的连续测定.此方法操作简便、快速,数据准确可靠.With automatic electric potential titrantion and sodium gluconate as the complexing agent, which can coordinate to the aluminum in the sodium aluminate solution, followed by the replacement of aluminum in sodium aluminate solution with KF and the same equivalent weight of OH^- to that of aluminum was released, the contents of caustic hydroxide, sodium carbonate and alumina in the sodium aluminate solutions can be continuously determined. It makes the analysis simple, fast and the resuh is satisfied.

关 键 词：自动电位滴定法 铝酸钠溶液 苛性碱 碳酸碱 氧化铝 

分 类 号：O657[理学—分析化学]