La(ClO_4)_3-OCBAAP-H_2O体系(30℃)溶度及Ln(OCBAAP)_4(ClO_4)_3·nH_2O的合成和表征  

The Solubilities of La(ClO 4) 3 OCBAAP H 2O System(30 ℃) and Syntheses and Characterization of Ln(OCBAAP) 4(ClO 4) 3· n H 2O

作　　者：梁宏斌[1] 唐宗薰[2] 

机构地区：[1]陕西师范大学化学系 [2]西北大学化学系

出　　处：《高等学校化学学报》1998年第12期1886-1890,共5页Chemical Journal of Chinese Universities

基　　金：北京大学稀土材料化学及应用国家重点实验室基金

摘　　要：测定了三元体系Ｌａ（ＣｌＯ４）３－ＯＣＢＡＡＰ－Ｈ２Ｏ在３０℃时的溶解度．结果表明，该体系有一个新固相（不一致溶解化合物）Ｌａ（ＯＣＢＡＡＰ）４（ＣｌＯ４）３·６Ｈ２Ｏ形成．参考该体系溶度图确定合成条件，合成了系列化合物Ｌｎ（ＯＣＢＡＡＰ）４（ＣｌＯ４）３·ｎＨ２Ｏ（Ｌｎ＝Ｌａ，ｎ＝６；Ｌｎ＝Ｐｒ，Ｎｄ，Ｓｍ，Ｇｄ，Ｙｂ，ｎ＝２）．通过化学分析、元素分析、ＴＧ－ＤＴＧ、ＩＲ和密度对化合物进行了表征，计算了Ｌａ（ＯＣＢＡＡＰ）４（ＣｌＯ４）３热分解过程各阶段的表观活化能．The solubilities of ternary system La(ClO 4) 3 OCBAAP 4 ( o chlorobenzoyl) aminoantipyrine, C 18 H 16 N 3O 2Cl H 2O at 30 ℃ were determined. The new solid phase (incongruent compound), La(OCBAAP) 4(ClO 4) 3·6H 2O , was discovered in the system. Based on the solubility diagram, the synthesis condition was defined, and compounds Ln(OCBAAP) 4\5(ClO 4) 3· n H 2O(Ln=La, n =6; Ln=Pr, Nd, Sm, Gd, Yb, n =2) were synthesized. The compounds were characterized by chemical analysis, elemental analysis, TG DTG, IR spectra and density respectively. Apparent activation energy of thermal decomposition of La(OCBAAP) 4(ClO 4) 3 has been calculated.

关 键 词：三元体系 溶度 相平衡 高氯酸镧 OCBAAP 

分 类 号：O614.331[理学—无机化学] O645.17[理学—化学]