Khoom
| Preasodymium, 59pr | |
| Atomic tus lej (z) | 59 |
| Theem ntawm STP | khov kho |
| Melting taw tes | 1208 k (935 ° C, 1715 ° F) |
| Kub taw tes | 3403 k (3130 ° C, 5666 ° F) |
| Ntom ntom ntom ntom (ze RT) | 6.77 g / cm3 |
| Thaum ua kua (ntawm mp) | 6.50 G / CM3 |
| Tshav kub ntawm fusion | 6.89 KJ / MOL |
| Tshav kub ntawm vaporization | 331 KJ / MOL |
| Mev khuam pob muaj peev xwm ua kom sov | 27.20 J / (MOLM KON) |
-
Preasodymium (III, IV) OXIDE
Preasodymium (III, IV) OXIDEYog cov inorganic compound nrog cov Formula Pr6o11 uas yog insoluble hauv dej. Nws muaj cov qauv cubic fluorite. It is the most stable form of praseodymium oxide at ambient temperature and pressure.It is a highly insoluble thermally stable Praseodymium source suitable for glass, optic and ceramic applications. PreaseYMYMIUM (III, IV) Oxide feem ntau yog cov kev ua siab ntev (99.999%) preasemium (III, olide (PR2O3) hmoov tsis nyob hauv feem ntau. Ultra High Purity thiab Siab Purity Zaj Lus Qhia Txhim Kho ob qho zoo thiab muaj txiaj ntsig raws li cov qauv kev tshawb fawb. Nanoscale hmoov thiab raug tshem tawm, raws li lwm cov chaw siab thaj tsam siab, yuav suav tau.