Chinese Journal of Applied Chemistry ›› 1992, Vol. 0 ›› Issue (1): 56-60.

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PREPARATION AND CHARACTERIZATION OF 1:12 SERIES OF HETEROPOLY MOLYBDOTUNGSTOPHOSPHORIC ACIDS(SALTS)

Wang Enbo, Liang Hong, Huang Rudan, Zhang shuxia   

  1. Department of Chemistry Northeast Normal University Changchun 130024
  • Received:1991-01-29 Revised:1991-06-14 Published:1992-02-10 Online:1992-02-10

Abstract: Heteropoly molybdotungstophosphoric acids (salts) with formula Ln-PMo6W6O40·xH2O (Ln=La, Ce, Pr, Nd) and ZnHP Mo6 W6O40·xH2O were prepared and characterized by elemental analysis, IR, UV spectrometry, and x-ray diffraction.The thermal stabilities of the compounds were as follows:solid acids>rareearth salts>Zn salt.The mechanism of reduction of the heteropolyanion in aqueous solution was proposed.

Key words: heter opoly compounds, Keggin structure, heteropoly molybdotungstophosphotic Acids, preparation properpics