Cov khoom
| Praseodymium, 59 Pr | |
| Atomic naj npawb (Z) | 59 |
| Phase ntawm STP | khov kho |
| Melting point | 1208 K (935 ° C, 1715 ° F) |
| Boiling point | 3403 K (3130 ° C, 5666 ° F) |
| Ceev (ze rt) | 6.77g 3 |
| thaum ua kua (ntawm mp) | 6.50 g / cm3 |
| Kub ntawm fusion | 6.89 kJ / mol |
| Kub ntawm vaporization | 331 kJ / mol |
| Molar tshav kub muaj peev xwm | 27.20 J/(mol·K) |
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Praseodymium (III, IV) Oxide
Praseodymium (III, IV) Oxideyog inorganic compound nrog cov mis Pr6O11 uas yog insoluble hauv dej. Nws muaj cov qauv cubic fluorite. Nws yog daim ntawv ruaj khov tshaj plaws ntawm praseodymium oxide ntawm ambient kub thiab siab. Praseodymium (III, IV) Oxide feem ntau yog High Purity (99.999%) Praseodymium (III, IV) Oxide (Pr2O3) Hmoov tsis ntev los no muaj nyob rau hauv ntau ntim. Ultra siab purity thiab siab purity compositions txhim kho ob qho tib si kho qhov muag zoo thiab muaj txiaj ntsig zoo raws li cov qauv kev tshawb fawb. Nanoscale elemental hmoov thiab suspensions, raws li lwm cov ntaub ntawv siab saum npoo av, tej zaum yuav raug txiav txim siab.