| Praseodymium [Pr] (CAS-ID: 7440-10-0) | |
| An: 59 N: 82 Am: | |
| Group Name: Lanthanoid | |
| Block: f-block Period: 6 (lanthanoid) | |
| State: solid at 298 K | |
| Colour: silvery white, yellowish tinge Classification: Metallic | |
| Boiling Point: 3793K (3520'C) | |
| Melting Point: 1208K (935'C) | |
| Density: 6.77g/cm3 | |
 Discovery Information |
| Who: C.F. Aver von Welsbach |
| When: 1885 |
| Where: Austria |
| Name Origin |
| Greek: prasios (green) and didymos (twin); from its green salts. |
| Sources |
| Can be found in rare earth minerals such as bastnasite and monazite. Obtained from the same salts as neodymium. |
| Uses |
| Used for coloring glass and ceramic glazes. Also used with neodymium to make lenses for glass maker's goggles because they filter out the yellow light present in glass blowing. It is alloyed with magnesium to create high strength metals. |
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