The solubilities of La(ClO4)(3)-OCBAAP-H2O system (30 degrees C) and syntheses and characterization of Ln(OCBAAP)(4)(ClO4)(3)center dot nH(2)O

Authors
Liang, HB Tang, ZX
Citation
Hb. Liang et Zx. Tang, The solubilities of La(ClO4)(3)-OCBAAP-H2O system (30 degrees C) and syntheses and characterization of Ln(OCBAAP)(4)(ClO4)(3)center dot nH(2)O, CHEM J CH U, 19(12), 1998, pp. 1886-1890
Citations number
9
Categorie Soggetti
Chemistry
Journal title
CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
ISSN journal
02510790 → ACNP
Volume
19
Issue
12
Year of publication
1998
Pages
1886 - 1890
Database
ISI
SICI code
0251-0790(199812)19:12<1886:TSOLS(>2.0.ZU;2-W
Abstract
The solubilities of ternary system La(ClO4)(3)-OCBAAP[4-(o-chlorobenzoyl) a minoantipyrine,d C18H16N3O2Cl]-H2O at 30 degrees C were determined. The new solid phase (incongruent compound), La(OCBAAP)(4)(ClO4)(3) . 6H(2)O, was d iscovered in the system. Based on the solubility diagram, the synthesis con dition was defined, and compounds Ln(OCBAAP)(4) . (ClO4)(3) . nH(2)O (Ln = La, n = 6; Ln = Pr, Ndt Sm, Gd, Yb, n = 2) were synthesized. The compounds were characterized by chemical analysis, elemental analysis, TG-DTG, IR spe ctra and density respectively. Apparent activation energy of thermal decomp osition of La(OCBAAP)(4)(ClO4)(3) has been calculated.