Cov khoom
| Europium, 63 Ib | |
| Atomic naj npawb (Z) | 63 |
| Phase ntawm STP | khov kho |
| Melting point | 1099 K (826 ° C, 1519 ° F) |
| Boiling point | 1802 K (1529 ° C, 2784 ° F) |
| Ceev (ze rt) | 5.264 g / cm3 |
| thaum ua kua (ntawm mp) | 5.13 g / cm3 |
| Kub ntawm fusion | 9.21 kJ / mol |
| Kub ntawm vaporization | 176 kJ / mol |
| Molar tshav kub muaj peev xwm | 27.66 J/(mol·K) |
-
Europium (III) Oxide
Europium (III) Oxide (Eu2O3)yog ib qho tshuaj sib xyaw ntawm europium thiab oxygen. Europium oxide kuj muaj lwm lub npe xws li Europia, Europium trioxide. Europium oxide muaj xim liab dawb. Europium oxide muaj ob lub qauv sib txawv: cubic thiab monoclinic. Lub cubic structured europium oxide yuav luag zoo ib yam li magnesium oxide qauv. Europium oxide muaj qhov tsis zoo solubility hauv dej, tab sis yooj yim yaj hauv cov ntxhia acids. Europium oxide yog thermally ruaj khov khoom uas muaj melting point ntawm 2350 oC. Europium oxide cov khoom siv ntau yam zoo li cov khoom sib nqus, kho qhov muag thiab luminescence ua rau cov khoom no tseem ceeb heev. Europium oxide muaj peev xwm nqus dej noo thiab carbon dioxide hauv huab cua.