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Citation: Li Xiaoxia, Yang Ying, Liu Jianmin, Yang Rudong. Study on the Solid Complexes of Ce(Ⅲ) and Ce(Ⅳ) with Phytic Acid[J]. Chinese Journal of Applied Chemistry, ;1997, 14(5): 71-73. shu

Study on the Solid Complexes of Ce(Ⅲ) and Ce(Ⅳ) with Phytic Acid

1.
Department of Chemistry, Lanzhou University, Lanzhou 730000

Received Date: 20 November 1996
Available Online: 26 May 1997

The ceric and cerous solid complexes with phytic acid were synthesized and chara-cterized by means of elemental analysis, IR and TG-DTA. The results show that under the experimental conditions for Ce(Ⅲ) only one form complex is formed:[(C₆H₆)H₄(PO₄)₆]₃Ce₈·13H₂O(Ⅰ), but two complexes were formed for Ce(Ⅳ):[(C₆H₆)H₄(PO₄)₆]₃·[Ce(OH)]₈·9H₂O(Ⅱ) and [(C₆H₆)(PO₄)₆]₃[Ce(OH)]₁₂·9H₂O(Ⅲ); the thermal stability of (Ⅲ) was less than that of (Ⅰ). On thermal decomposition the ceric was reduced to cerous and the final product was CePO₄.
- ceric,
- cerous,
- phytic acid,
- solid complex
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