铝酸钠溶液中苛性碱全碱的自动分析  

Automatic Determination of Caustic and Total Soda in Sodium Aluminate Solutions

作　　者：陈秋影[1] 张志军[1] 毛暗章 黄宁 许亚春[1] 徐金华[1] 

机构地区：[1]中南工业大学化学系

出　　处：《分析试验室》1996年第6期42-44,共3页Chinese Journal of Analysis Laboratory

摘　　要：本文采用流动式微量自动滴定技术，选择以磺基水杨酸、氯化钡、酚酞的混合液为载流滴定剂，滴定苛性碱；再以磺基水杨酸和酚酞的混合液为载流滴定剂，滴定苛性碱和碳酸碱一半的合量。借助自制的ＣＰＡＣ－Ⅲ型自动光度分析仗实现了含量２０～２５０ｇ／Ｌ的苛性碱和全碱的自动分析。该法快速、准确。Based onnow-automatic -micro-titrationtechnique,a mixture of sulfosalicyclic acid,barium chloride and phenolphthalein is select-ed as the carrier andtitrant for caustic soda.Another solution consisting of sulfosalicyclicacid and phenolphthalein is used as the carrierand titrant for the determinatiOn of totalamount of caustic soda and half of the carbon-ate. with the aid of CPAC-Ⅲ auto-photome-ter,the caustic and total soda in the range of20～250g/Lhave been determined with satis-factory results. It has been found that this is afast automatic method with good accuracy.

关 键 词：苛性碱 全碱 氧化铝 碳酸碱 铝酸钠 自动滴定 

分 类 号：TQ133.1[化学工程—无机化工]