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Praseodymium Praesodymium is a soft, white metal and a member of the lanthanide group of elements. It closely resembles neodymium and, along with other elements of the same group, is found in the same minerals. It reacts slowly with oxygen but rapidly with water. As a pure metal, its uses are limited; however, it is used as an alloying constituent for alloys used to make permanent magnets and flints. Along with neodymium, praseodymium is used to manufacture yellow glass which can be used as eye protection (e.g. for welders).
- Symbol
- Pr
- Discovered
- 1805 by Baron Auer von Welsbach in Vienna, Austria.
- Abundance
- 9.5 ppm of the earth’s crust.
Click on an item to paste into clipboard or use clipboard symbol at end to clipboard all values | Atomic number | 59 | | Clip | | Atomic / Molecular Weight | 140.9077 | gmol-1 | Clip | | Density | 6779 | kgm-3 | Clip | | Crystal Structure | hcp / bcc at 1065K | | Clip | | Lattice constant | 367 | fm | Clip | | Melting Point | 1208 | K | Clip | | Boiling Point | 3273 | K | Clip | | Specific heat capacity | 192 | Jkg-1K-1 | Clip | | Thermal conductivity | 12 | Wm-1K-1 | Clip |
 paste all data into clipboard See also: Didymium, Periodic Table.
  
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