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Acta Chimica Sinica ›› 2003, Vol. 61 ›› Issue (6): 853-857. Previous Articles Next Articles
Original Articles
郝志峰;梁宏斌;唐宗薰;余林;余坚;方奕文
发布日期:
Hao Zhifeng;Liang Hongbin;Tang Zongxun;Yu Lin;Yu Jian;Fang Yiwen
Published:
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The solubilities of three ternary systems LaX_3-PIAP-H_2O (X~- = C1O_4~-, NO_3~-, Cl~-; PIAP =phthalimidoantipyrine, G_(19)H_(15) N_3O_3) were determined at 30℃. It is discovered that the systems La (NO_3)_3-PIAP-H_2O and LaCl_3-PIAPH_2O are simple eutonic type, while the system La(C1O_4)_3-PIAP-H_20 contains a new solid phase, the composition of which is La(PIAP)_3(C10_4)_3·4H_20 that is an incongruent compound. Based on the phase equilibrium of the system La (C10_4)_3-PIAP-H_20, the corresponding lanthanide complexes Ln(PIAP)_3 (C10_4)_3·4H_20 (Ln=La, Pr, Nd, Sm, Gd, Yb) were synthesized and characterized by chemical analysis, elemental analysis, TG-DTG, IR spectra and density.
Key words: lanthanum perchlorate, lanthanum chloride, lanthanum nitrate, ANTIPYRINU, SOLUBILITY, ELEMENTAL ANALYSIS, TG, IR, PHASE EQUILIBRIUM, PRASEODYMIUM COMPLEX
CLC Number:
O642
Hao Zhifeng;Liang Hongbin;Tang Zongxun;Yu Lin;Yu Jian;Fang Yiwen. Phase Equilibrium of the Ternary Systems LaX_3-PIAP-H_2O (X~- = ClO_4~-, NO_3~-, Cl~-) at 30 ℃[J]. Acta Chimica Sinica, 2003, 61(6): 853-857.
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