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A novel method for preparation of bismuth(III) carbonate basic (BiO)2CO3.3H2O upon the reaction of urea with various bismuth(III) salts at high temperature

Mohamed M. AL-Majthoub and Moamen S. Refata

Bismuth(III) carbonate basic, (BiO)2CO3.3H2O, was prepared via novel simple synthetic route through the reaction of aqueous solutions of BiCl3, Bi(NO3)3, Bi(CH3COO)3 or Bi2(SO4)3 with a simple organic precursor like urea at ~ 90 oC for 72 hrs. The infrared spectra of the results indicate absence of the individual bands of urea, but exhibited of the characteristic band of ionic carbonate, CO3 2–. A general reaction mechanisms describing the preparation of bismuth(III) carbonate basic compound was discussed.