Lanthanum carbonate intermediate compound

Yttrium oxide is a rare earth metal oxide with the chemical formula Y₂O₃, and it appears as a white powder at room temperature. Its melting point is as high as 2410℃, and it has excellent thermal stability, electrical insulation and outstanding optical transmittance.  

 Lanthanum Carbonate, white powder, insoluble in water, soluble in acids. Density: 2.6-2.7 g/mL, stable at room temperature and free of dangerous reactions.