高等学校化学学报

高等学校化学学报 ›› 1998, Vol. 19 ›› Issue (12): 1886.

• 论文 • 上一篇    下一篇

La(ClO4)3-OCBAAP-H2O体系(30℃)溶度及Ln(OCBAAP)4(ClO4)3·nH2O的合成和表征

梁宏斌1, 唐宗薰2   

  1. 1. 陕西师范大学化学系院, 西安, 710062;
    2. 西北大学化学系院, 西安, 710069
  • 收稿日期:1997-12-01 出版日期:1998-12-24 发布日期:1998-12-24
  • 通讯作者: 梁宏斌.男,32岁,硕士,讲师.
  • 作者简介:梁宏斌.男,32岁,硕士,讲师.
  • 基金资助:

    北京大学稀土材料化学及应用国家重点实验室基金资助课题.

The Solubilities of La(ClO4)3-OCBAAP-H2O System(30 ℃) and Syntheses and Characterization of Ln(OCBAAP)4(ClO4)3·nH2O

LIANG Hong-Bin1, TANG Zong-Xun2   

  1. 1. Dept. Chem., Shaanxi Normal University, Xi'an, 710062;
    2. Dept. Chem., Northwest University, Xi'an, 710069
  • Received:1997-12-01 Online:1998-12-24 Published:1998-12-24

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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.

关键词: 三元体系, 溶度, 相平衡, 高氯酸镧, 4-(邻氯苯甲酰基)氨基安替比林

Abstract: The solubilities of ternary system La(ClO4)3-OCBAAP[4-(o-chlorobenzoyl) aminoantipyrine, C18 H16 N 3O2Cl]-H2Oat 30 ℃ were determined. The new solid phase (incongruent compound), La(OCBAAP)4(ClO4)3·6H2O, was discovered in the system. Based on the solubility diagram, the synthesis condition was defined, and compounds Ln(OCBAAP)4·(ClO4)3· n H2O(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, IRspectra and density respectively. Apparent activation energy of thermal decomposition of La(OCBAAP)4(ClO4)3 has been calculated.

Key words: Ternary system, Solubility, Phase equilibrium, Lanthanum perchlorate, 4-(o-Chlorobenzoyl)aminoantipyrine

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