铝酸钠溶液中苛性碱、 碳酸碱和氧化铝含量的连续测定

铝酸钠溶液中苛性碱、碳酸碱和氧化铝含量的连续测定

贺晓唯¹,², 毕诗文¹, 周金海²

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

收稿日期:2005-11-18 修回日期:1900-01-01 出版日期:2006-09-26 发布日期:2006-09-26
通讯作者: 贺晓唯

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

HE Xiaowei¹，², BI Shiwen¹, ZHOU Jinhai²

1. College of Metallurgical Material, Northeast University, Shenyang 110004, China; 2. College of Applied Chemistry, Shenyang Institute of Chemical Technology, Shenyang 110142, China

Received:2005-11-18 Revised:1900-01-01 Online:2006-09-26 Published:2006-09-26
Contact: HE Xiaowei

摘要/Abstract

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.

关键词: 自动电位滴定法, 铝酸钠溶液, 苛性碱, 碳酸碱, 氧化铝

Abstract: 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 result is satisfied.

Key words: automatic electric potential titration, sodium aluminate solution, caustic hydroxide, sodium carbonate,  alumina

中图分类号:

O657

贺晓唯,, 毕诗文, 周金海. 铝酸钠溶液中苛性碱、碳酸碱和氧化铝含量的连续测定[J]. J4, 2006, 44(05): 821-823.

HE Xiaowei，, BI Shiwen, ZHOU Jinhai. Determination of Caustic Hydroxide, Sodium Carbonate and Alumna in Sodium Aluminate Solutions[J]. J4, 2006, 44(05): 821-823.

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