Okwu Mmeghachi
Aha ngwaahịa: Praseodmium
Usoro: pr
Enweghị .: 7440-10-0
Igolulular: 140.91
Nnọọ: 6.71 g / ml na 25 Celsius C
Na-agbaze na-emegharị: 931 ° C
Udi: 10 x 10 x 10 mm cube
Ihe: | Praseodmium |
Ịdị ọcha: | 99.9% |
Nọmba atomic: | 59 |
Keuju | 6.8 G.CM-3 na 20 Celsius C |
Na-agbaze | 931 Celsius C |
Isi mmalite | 3512 Celsius C |
Uzo | 1 inch, 10mm, 25.4mm, 50mm, ma ọ bụ ahaziri |
Akwukwo icho oru | Onyinye, Sayensị, Ngosipụta, Nchịkwa, Nchọsi, Nchọpụta |
Praseodmium bụ ihe dị nro, ọla edo na-acha odo odo. Ọ bụ onye otu nke Lanthanide otu nke tebụl oge nke ihe. Ọ na-eme ihe na oxygen: Mgbe ekpughere ikuku, ọ na-eme ka ọ bụrụ oxide akwụkwọ ndụ akwụkwọ ndụ na-echebeghị ya site na oxiding. Ọ na-eguzogide corrosion n'ikuku ọla ọzọ dị ụkọ, mana ọ ka ga-echekwa n'okpuru mmanụ ma ọ bụ plastik. Ọ na-emeghachi omume na mmiri.
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