铈(Ⅳ)与焦磷酸盐的配位作用  

Complex Formation of Ce(Ⅳ) with the Pyrophosphate Ion

作　　者：董文基[1] 杨汝栋[1] Dong Wenji;Yang Rudong(Department of Chemistry,Lanzhou University,L.anzhon)

机构地区：[1]兰州大学化学系

出　　处：《高等学校化学学报》1986年第5期401-405,共5页Chemical Journal of Chinese Universities

基　　金：中国科学院科学基金资助课题。

摘　　要：考察了在焦磷酸盐水溶液中用O_(3)氧化Ce(Ⅲ),生成的Ce(Ⅳ)与P_(2)O_(7^(4-)的作用情况,并对不同条件下所得的固体进行了研究。In this paper we have studied the reaction between the aqueous solution of P_(2)O_(7^(4-) and Ce ( Ⅳ ) obtained by chemical oxidation of the corresponding trivalent species in an alkaline aqueous pyrophosphatc solution using ozonc. under different conditions three solids of Ce P3O7·x H_(2)O, K2(Ce(HP2O7 )_(2))·4H_(2)O and K4(Ce(P2O7)_(3))·3H_(2)O were obtained from the solution of Ce( Ⅳ)-P_(2)O_(74)- with different methods. The compositions and the properties of these solids were studied by chemical analysis, thermal analysis, infra-red spectrum and the determination of molar conductivities and charges of the complex ion.

关 键 词：配位作用 焦磷酸盐 Ce(Ⅳ) 铈(Ⅳ) Ce(Ⅲ) 水溶液 固体 

分 类 号：O64[理学—物理化学]