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praseodymium
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nature : Periodic System III ethnic group vice Larthanide. A rare earth elements. Atomic number 59. Stable isotopes : 141. Amu 140.90765. Pale yellow metal. Density : α7.82, β6.64. 935 ° C melting point. The boiling point of about 3,290 ° C Valence +3, +4. Acid soluble. Role of water and release hydrogen. Exposure to the humid air, easily oxidized surface layer of oxide formation, should be stored in kerosene containing an enclosed container. Used in the manufacture of special alloys such as PrCo5 is a good permanent magnet materials, and high temperature ceramic and special glass. Found primarily in the living rock. By hydration PrCl3 PrCl3 xH2O After dehydration metal calcium reduction, or anhydrous PrCl3 by melting after electrolysis and prepared.


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More Detailed Data:
1) Praseodymium
2) praseodymium
3) praseodymium
4) praseodymium oxide
5) Praseodymia;praseodymium oxide
6) praseodymium oxide
7) praseodymium oxide
8) acetic acid, praseodymium;salt praseodymium acetate
9) praseodymium nitrate
10) praseodymium dioxide
Notice Some description was translated by software and the data is only as a reference.
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