The chemistry of the phosphates of barium and tetravalent cations in the 1:1 stoichiometry

✍ Scribed by Karin Popa; Damien Bregiroux; Rudy J.M. Konings; Thomas Gouder; Aurelian F. Popa; Thorsten Geisler; Philippe E. Raison

• Book ID: 104029929
• Publisher: Elsevier Science
• Year: 2007
• Tongue: English
• Weight: 737 KB
• Volume: 180
• Category: Article
• ISSN: 0022-4596
• DOI: 10.1016/j.jssc.2007.06.006

✦ Synopsis

The chemistry of phosphates of barium and tetravalent cations [BaM IV (PO 4 ) 2 ] is reviewed. Such phosphates crystallise in the C2/m space group for M IV ¼ Ti, Zr, Hf, Ge, Sn, and Mo, and in the P2 1 /n space group for BaTh(PO 4 ) 2 . The existence of BaM IV (PO 4 ) 2 in which M IV ¼ Pb, Ce, and U is further evaluated. Several aspects, such as phase transitions in the compounds with yavapaiite structure, solid solutions of BaM IV (PO 4 ) 2 compounds and practical applications are briefly discussed.