Ln(ClO_4)_3-PCBAAP-H_2O系统在30℃时的溶解度研究  

Study on the Solubilities of the System of Ln(ClO_4)_3-PCBAAP- _2O at 30℃

作　　者：梁宏斌[1] 崔斌[1] 唐宗薰[1] 

机构地区：[1]西北大学化学系

出　　处：《化学学报》2000年第9期1142-1146,共5页Acta Chimica Sinica

基　　金：北京大学稀土材料化学及应用国家重点实验室资助课题

摘　　要：测定了两个三元系统Ln(ClO_4)_3-PCBAAP-H_2O(Ln=La,Yb;PCBAAP:4-(对氯苯酰基)氨基安替比林,C_(18)H_(16)N_3Cl)在30℃时的溶解度,发现两系统各有一个组成为Ln(PCBAAP)_4(ClO_4)_3·nH_2O(Ln=La,n=6;Ln=Yb,n=2)的不一致溶解化合物生成.参考系统的溶解度研究结果,合成了系列化合物Ln(PCBAAP)_4(ClO_4)_3·nH_2O(Ln=La,n=6;Ln=Pr,Nd,Sm,Gd,Yb,n=2),通过化学分析及元素分析,IR光谱,TG-DTG,XRD和密度测定对其进行了表征.The solubilities of the ternary systems Ln(ClO4 )3 - PCBAAP - H2O (Ln = La, Yb) at 30℃ were determined, and the incongruent compounds, Ln ( PCBAAP )4 ( ClO4 )3·nH2O (Ln=La, n = 6; Ln = Yb, n = 2) were discovered in the systems . Based on the results of solubilities , the series compounds , Ln· (PCBAAP)4(ClO4)3· nH2O (Ln = La, n = 6; Ln = Pr, Nd, Sm, Gd, Yb, n = 2) were synthesized by means of phase equilibrium method. The compounds were characterized by chemical analysis, elemental analysis, IR spectra, TG - DTG analysis, XRD and density determination, respectively.

关 键 词：镧系高氯酸盐 PCBAAP 水 三元系统 溶解度 

分 类 号：O657.3[理学—分析化学]