The Synthesis and Characterization of Rare-Earth Fluocarbonates

Abstract

A procedure is described for synthesizing cerium fluorcarbonate. This synthetic bastnaesite was characterized through X-Ray diffraction, chemical analysis and thermogravimetric studies. The solubility product of Ce-bastnaesite was determined to be 10−10.1. The stability constant pK CeHCO32+ complex was experimentally determined to be 3.04 ± 0.21. Based on the thermodynamic data available in the literature, a speciation diagram has been prepared for the synthetic cerium bastnaesite.

Keywords

• synthesis of rare-earth fluocarbonates
• characterization of rare-earth fluocarbonates
• bastnaesite
• synthesis of cerium bastnaesite
• physical and chemical characterization of bastnaesite particles