Kayayyaki
Praseodymium, 59Pr | |
Lambar atomic (Z) | 59 |
Farashin STP | m |
Wurin narkewa | 1208 K (935 ° C, 1715 ° F) |
Wurin tafasa | 3403 K (3130 °C, 5666 °F) |
Yawan yawa (kusa da rt) | 6.77 g/cm 3 |
lokacin ruwa (a mp) | 6.50 g/cm 3 |
Zafin fuska | 6.89 kJ/mol |
Zafin vaporization | 331 kJ/mol |
Ƙarfin zafin rana | 27.20 J/ (mol·K) |
-
Praseodymium (III, IV) Oxide
Praseodymium (III,IV) Oxideshi ne mahaɗan inorganic tare da dabarar Pr6O11 wanda ba ya narkewa a cikin ruwa. Yana da tsarin fluorite mai siffar sukari. Shi ne mafi kwanciyar hankali nau'i na praseodymium oxide a yanayi zafin jiki da kuma matsa lamba.It ne mai matuƙar insoluble thermally barga Praseodymium tushen dace da gilashin, gani da yumbu aikace-aikace. Praseodymium(III,IV) Oxide gabaɗaya Babban Tsafta ne (99.999%) Praseodymium(III,IV) Oxide (Pr2O3) Foda yana samuwa a cikin mafi yawan kundin. Maɗaukakin tsafta mai ƙarfi da ƙaƙƙarfan tsafta yana haɓaka ingancin gani da fa'ida a matsayin ma'aunin kimiyya. Nanoscale foda da kuma dakatarwa, azaman madadin babban yanki mai tsayi, ana iya la'akari da shi.