Ngwaahịa
Praseodymium, 59Pr | |
Nọmba atọm (Z) | 59 |
Usoro na STP | siri ike |
Ebe mgbaze | 1208K (935 Celsius, 1715 Celsius) |
Ebe esi nri | 3403 K (3130 Celsius, 5666 Celsius) |
Njupụta (nke dị nso rt) | 6.77 g/cm3 |
mgbe mmiri mmiri (na mp) | 6.50 g / cm3 |
Okpomọkụ nke ngwakọta | 6.89 kJ / mol |
Okpomọkụ nke vaporization | 331 kJ / mol |
Ike okpomọkụ molar | 27.20 J/ (mol·K) |
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Praseodymium (III, IV) oxide
Praseodymium (III,IV) oxidebụ ogige inorganic nke nwere usoro Pr6O11 nke na-adịghị edozi na mmiri. Ọ nwere usoro fluorite cubic. Ọ bụ ụdị praseodymium oxide kacha kwụsie ike na okpomọkụ na nrụgide. Praseodymium(III,IV) Oxide bụ n'ozuzu ịdị ọcha dị elu (99.999%) Praseodymium(III,IV) Oxide (Pr2O3) ntụ ntụ dị n'oge na-adịbeghị anya n'ọtụtụ mpịakọta. Ihe mejupụtara ịdị ọcha dị elu na ịdị ọcha dị elu na-eme ka mma anya na uru dị ka ụkpụrụ sayensị. Nanoscale elemental powders na nkwusioru, dị ka ụdị ọzọ dị elu n'elu, nwere ike ịtụle.