Cr^(3+)的水解聚合作用(Ⅹ)——水解模型的作图分析和计算机筛选  

Studies on the Hydrolytic Polymerization of Chromium (Ⅲ) Ion(Ⅹ) --Graphing Analysis and Computer Screening for Determination of Hydrolysis Model

作　　者：罗勤慧[1] 沈孟长[1] 任建国 丁益[1] 戴安邦 Luo Qinhui;Shen Mengchang;Ren Jianguo;Ding Yi;Dai Anbang(Coordination Chemistry Research Institute,Nanjing University,Nanjing)

机构地区：[1]南京大学配位化学研究所 [2]武汉大学化学系

出　　处：《高等学校化学学报》1988年第12期1211-1216,共6页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金。

摘　　要：用平衡pH法研究了在60℃和恒定离子强度时,在顺丁烯二酸存在条件下Cr^(3+)的水解聚合状态。用作图积分法对体系的组成进行初步估算和p9r分析。The hydrolytic polymerization state of Cr3 + was studied in the presence of maleic acid by equilibrium pH method at 60℃ and constant ionic strength with total concentration of Cr^(3+) to be 0. 0080mol·dm-3 and that of maleic acid to be 0.0100, 0.0120, 0.0140mol·dm-3 respectively. Preliminary estimation for composition of the system was made by graphing integration and then precise calculation was made by pqr analysis on the basis of the former. Results showed that the present system is composed of [Cr(OH)A],[Cr_(2)(OH)A]_(3) + ,[Cr_(2)(OH)A_(2)]^(+) and a small amount of [CrA_(2)]^(-),and is more complicated than 1:1 system.The equilibrium constants of twelve reactions were obtained by calculating thirty one data points with good fitting. Comparison between the present system and that with fumaric acid was made.

关 键 词：铬 水解 聚合 顺丁烯二酸 平衡常数 

分 类 号：G63[文化科学—教育学]