Okwu mmeghe dị nkenke
Aha ngwaahịa: Praseodymium
Usoro: Pr
Nọmba CAS: 7440-10-0
Arọ Molecular: 140.91
Njupụta: 6.71 g/mL na 25 Celsius
Ebe mgbaze: 931 Celsius
Ụdị: 10 x 10 x 10 mm cube
Ihe: | Praseodymium |
Ịdị ọcha: | 99.9% |
Nọmba atọm: | 59 |
Njupụta | 6.8 g.cm-3 na 20 Celsius |
Ebe mgbaze | 931 Celsius C |
Ntụ egwu | 3512 Celsius C |
Akụkụ | 1 inch, 10mm, 25.4mm, 50mm, ma ọ bụ ahaziri |
Ngwa | Onyinye, sayensị, ihe ngosi, mkpokọta, ịchọ mma, agụmakwụkwọ, nyocha |
Praseodymium bụ ọla na-acha odo odo na ọlaọcha. Ọ bụ onye otu lanthanide nke okpokoro oge nke ihe. Ọ na-eji oxygen na-emeghachi nwayọọ nwayọọ: mgbe a na-ekpuchi ya na ikuku, ọ na-etolite oxide green nke na-adịghị echebe ya pụọ na oxidation ọzọ. Ọ na-eguzogide corrosion n'ikuku ọla ndị ọzọ na-adịghị ahụkebe, mana ọ ka kwesịrị ịchekwa ya n'okpuru mmanụ ma ọ bụ kpuchie ya na plastik. Ọ na-eji mmiri eme ngwa ngwa.