Praseodymium Metal (Pr)-Powder
Characteristic
Praseodymium is a chemical element with the symbol Pr and the atomic number 59. It is the third member of the lanthanide series and is considered to be one of the rare-earth metals. It is a soft, silvery, malleable and ductile metal, valued for its magnetic, electrical, chemical, and optical properties. It is too reactive to be found in native form, and pure praseodymium metal slowly develops a green oxide coating when exposed to air.
| Appearance: | Powder |
| Melting point: | 1208 K (935 °C, 1715 °F) |
| Boiling point: | 3403 K (3130 °C, 5666 °F) |
| Density (near r.t.): | 6.77 g/cm3 |
| When liquid (at m.p.): | 6.50 g/cm3 |
| Heat of fusion: | 6.89 kJ/mol |
| Heat of vaporization: | 331 kJ/mol |
| Molar heat capacity: | 27.20 J/(mol·K) |
Chemical Composition
|
Rare Earth Impurity(≤) |
Pr/RE |
≥99.5% |
|||
|
Item |
La/RE |
Ce/RE |
Nd/RE |
Sm/RE |
Y/RE |
|
Content(%) |
0.030 |
0.030 |
0.220 |
0.030 |
0.030 |
|
Non-Rare Earth Impurity(≤) |
RE |
≥99% |
|||
|
Item |
Fe |
Si |
Al |
Ca |
Mg |
|
Content(%) |
0.180 |
0.014 |
0.015 |
0.010 |
0.010 |
|
Item |
O |
W |
Mo |
C |
|
|
Content(%) |
0.017 |
0.01 |
0.031 |
0.032 |
|
Granularity Of Materials – 200 Mesh
Application
Praseodymium is used in a variety of alloys. The high-strength alloy it forms with magnesium is used in aircraft engines. Mischmetal is an alloy containing about 5% praseodymium and is used to make flints for cigarette lighters. Praseodymium is also used in alloys for permanent magnets.
Along with other lanthanide elements, it is used in carbon arc electrodes for studio lighting and projection.
Praseodymium salts are used to colour glasses, enamel and glazes an intense and unusually clean yellow. Praseodymium oxide is a component of didymium glass (along with neodymium). This glass is used in goggles used by welders and glassmakers, because it filters out the yellow light and infrared (heat) radiation.
Package
Vacuum pumping and argon protection, 500g or 1000g / bottle.
