Praseodymium Granules | AMERICAN ELEMENTS ® (original) (raw)
Chemical Structure
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American Elements specializes in producing high purity Praseodymium Granules in ultra high purity for analytical standards in health and safety research and other commercial applications. Granules also exhibit the highest possible density and smallest possible average grain sizes for use in Chemical Vapor Deposition (CVD) and Physical Vapor Deposition (PVD) processes including Thermal and Electron Beam (E-Beam) Evaporation, Low Temperature Organic Evaporation, Atomic Layer Deposition (ALD), Metallic-Organic and Chemical Vapor Deposition (MOCVD). Our standard granules are amorphous uniform pieces in sizes ranging from 1 mm, 1-2 mm, and 3-5 mm. Materials are produced using crystallization, solid state and other ultra high purification processes such as sublimation. American Elements specializes in producing custom compositions for commercial and research applications and for new proprietary technologies. American Elements also casts any of the rare earth metals and most other advanced materials into rod, bar, or plate form, as well as other machined shapes and through other processes such as nanoparticles and in the form of solutions and organometallics. American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available. We also produce Praseodymium as rod, pellets, powder, pieces, disc, ingot, wire, and in compound forms, such as oxide. Other shapes are available by request.
| Molecular Weight | 140.91 |
|---|---|
| Appearance | Silvery white |
| Melting Point | 935 °C |
| Boiling Point | 3290 °C |
| Density | 6640 kg/m3 |
| Solubility in H2O | N/A |
| Poisson's Ratio | ( form) 0.281 |
| Young's Modulus | ( form) 37.3 GPa |
| Vickers Hardness | 400 MPa |
| Tensile Strength | N/A |
| Thermal Conductivity | 0.125 W/cm/K @ 298.2 K |
| Thermal Expansion | (r.t.) (poly) 6.7 µm/(m·K) |
| Electrical Resistivity | 68 microhm-cm @ 25 °C |
| Electronegativity | 1.1 Paulings |
| Specific Heat | 0.046 Cal/g/K @ 25 °C |
| Heat of Fusion | 2.70 Cal/gm mole |
| Heat of Vaporization | 79 K-Cal/gm atom at 3512 °C |
| Signal Word | Danger |
|---|---|
| Hazard Statements | H228-H260 |
| Hazard Codes | F |
| Precautionary Statements | P223-P210-P231+P232-P280-P240-P501 |
| Risk Codes | N/A |
| Safety Statements | N/A |
| Harmonized Tariff Code | 2805.30 |
| Transport Information | UN3089 4.1/PG II |
| WGK Germany | 3 |
| GHS Pictogram | Image  |
| Linear Formula | Pr |
|---|---|
| Pubchem CID | 23942 |
| MDL Number | MFCD00011174 |
| EC No. | 231-120-3 |
| Beilstein/Reaxys No. | N/A |
| SMILES | [Pr] |
| InchI Identifier | InChI=1S/Pr |
| InchI Key | PUDIUYLPXJFUGB-UHFFFAOYSA-N |
| Chemical Formula | |
| Molecular Weight | |
| Standard InchI | |
| Appearance | |
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Customer Reviews
Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Safety Data Sheet (SDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes, and 36,000 lb. tanker trucks.
May 12, 2026 Los Angeles, CA
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See more Praseodymium products. Praseodymium (atomic symbol: Pr, atomic number: 59) is a Block F, Group 3, Period 6 element with an atomic weight of 140.90765. 
The number of electrons in each of praseodymium's shells is 2, 8, 18, 21, 8, 2 and its electron configuration is [Xe]4f3 6s2. The praseodymium atom has a radius of 182 pm and a Van der Waals radius of 239 pm. Praseodymium resembles the typical trivalent rare earths, however, it will exhibit a +4 state when stabilized in a zirconia host. 
Unlike other rare-earth metals, which show antiferromagnetic and / or ferromagnetic ordering at low temperatures, praseodymium is paramagnetic at any temperature above 1 K. Praseodymium is found in the minerals monazite and bastnasite. Praseodymium was discovered by Carl Auer von Welsbach in 1885. The origin of the element name comes from the Greek words prasios didymos, meaning green twin.