KA HOOMAHA
Nā inoa huahana: Praseodymium
Forstula: pr
Nā meaʻole .: 7440-10-0-0-0-0-0-0
Molele monlecular: 140.91
Hana: 6.71 G / ML i 25 ° C
Melting point: 931 ° C
Nāʻano: 10 x 10 x 10 mm cube
Nā Kūlana: | Praesoodmiumum |
Marigy: | 99.9% |
Helu helu: | 59 |
Huakai | 6.8 G.CM-3 ma 20 ° C |
Malting Point | 931 ° C |
Ulu hale nunui | 3512 ° c |
Dimension | 1 Inch, 10mm, 25.4mm, 50mm, a iʻole i hanaʻia |
Noi | Makana,ʻepekema, hōʻikeʻike, ka hoʻohanāwai, ka hoʻohanohano, noiʻi, noiʻi |
ʻO Praseodymium he mea palupalu palupalu,ʻo ka mea hao momona. He lālā ia o ka pūʻulu Lanthannide o ka papa manawa o ka manawa o ka manawa. E hana mālie ia me ka oxygen ʻOi aku ka nui o ka corrosant i ka lewa i ka lewa i nā metala'ē aʻe, akā pono ke mālamaʻia ma lalo o ka aila a iʻole i hoʻopaʻaʻia me ka aila. Ua kūpono loa ia me ka wai.
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