逐时络合比色法测定固体铝形态分布  

Assay of the species in solid polynuclear aluminum by timedly complexometric spectrophotometry

作　　者：赵海东[1] 孙忠[2] 霍金仙[1] 郭永[1] 马宏芳[1] 

机构地区：[1]山西大同大学化学与化工学院,山西大同037009 [2]内蒙古大学化学化工学院,内蒙古呼和浩特010021

出　　处：《山西化工》2007年第6期38-40,共3页Shanxi Chemical Industry

基　　金：国家自然科学基金(20563002);内蒙古自然科学基金(200508010204);内蒙古教育厅重点项目基金(ZD01070);山西大同大学科研项目(200646);山西大同大学青年科研项目(2007Q12)

摘　　要：应用ExpAssoc分布模拟计算方法对Al-Ferron逐时络合动力学曲线进行了定量模拟,采用固体直接投加法对固体聚合氯化铝中铝形态分布进行了测定。通过比较传统Al-Ferron逐时络合比色法和ExpAssoc分布模拟计算法二者的测定结果,表明ExpAssoc分布模拟计算方法测定值准确可靠、重现性好。Al-Ferron timed assay is a basic method in the study of polynuclear hydroxyl aluminum species. The hydrolysis-polymeriza- tion species of the aluminum salt is very complex and the species change quickly in dissolution and dilution proems, which make determination of aluminum species distribution difficult and the experimental results non-repetitional. In this paper, the species in solid polynuclear aluminum is determined by applying the ExpAssoc distribution to quantitatively fit the Al-Ferron reaction dynamics curver and adopting the method of adding solid directly. Comparing the results between traditional method and ExpAssoc distribution fitting method, the result of ExpAssoc distribution fitting method is accuracy and good repetition.

关 键 词：固体聚合氯化铝 铝形态分布 ExpAssoc分布 逐时络合比色法 

分 类 号：TQ314.253[化学工程—高聚物工业]