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Praseodymium Metal (Pr) is a soft, silvery-white rare-earth metal with exceptional thermal and magnetic properties, critical for advanced industrial applications. With a CAS number of 7440-10-0 and an atomic weight of 140.91 g/mol, this metal offers purity levels of 99.9%-99.99% (depending on grade). Characterized by a melting point of 931°C and a density of 6.77 g/cm³, Praseodymium Metal stands out for its ability to form stable alloys with high-temperature resistance and strong magnetic responses. Its low vapor pressure and ductility make it ideal for precision manufacturing processes requiring both strength and malleability.
1. High-Temperature Stability: Maintains structural integrity in oxidizing environments up to 800°C, making it a key component in superalloys for aerospace engines.
2. Magnetic Susceptibility: Enhances the coercivity and remanence of permanent magnets when alloyed with cobalt and iron, critical for electric vehicle motors and wind turbines.
3. Alloying Versatility: Forms homogeneous mixtures with aluminum, nickel, and titanium, improving corrosion resistance and creep strength in industrial coatings.
4. Fine Surface Finish: Available in polished ingots and granules with minimal oxide contamination, ensuring consistent performance in high-precision applications.
5. Low Radioactivity: Naturally occurring isotopes are non-radioactive, simplifying handling and compliance with safety regulations.
• High-Temperature Alloys: Added to nickel-based superalloys (e.g., Inconel) to refine grain structure, enhancing durability in gas turbine blades subjected to extreme heat and stress.
• Magnetic Materials: Used in Pr-Co permanent magnets for audio speakers and sensors, offering higher operating temperatures compared to neodymium-based alternatives.
• Catalysis: Acts as a promoter in petroleum refining catalysts, improving the efficiency of hydrocracking reactions to produce cleaner fuels.
• Electronics: Deposited as thin films in optical storage devices to enhance data recording sensitivity through magneto-optical effects.
• Research & Development: Serves as a reference material in X-ray diffraction studies and as a dopant in single-crystal growth for solid-state physics research.
Q: What forms does Praseodymium Metal typically come in?
A: Available as ingots (≥99.9% purity), rods, granules, and sputtering targets, with custom shapes available for specialized manufacturing processes.
Q: How does Praseodymium Metal compare to other rare-earth metals in high-temperature applications?
A: It offers a balance of lower density than dysprosium and higher oxidation resistance than erbium, making it optimal for weight-sensitive high-temperature environments.
Q: Can it be used in additive manufacturing (3D printing)?
A: Yes, as a powder feedstock in laser powder bed fusion, it enables the production of complex-shaped components with enhanced thermal fatigue resistance.
Q: What precautions are needed for long-term storage?
A: Store in sealed containers under dry argon or vacuum to prevent surface oxidation; avoid exposure to moisture, which may cause mild tarnishing.
Q: Is there a minimum order quantity for custom purity grades?
A: Standard orders start at 1 kg, but smaller research quantities (10-100 g) are available upon request with certified purity analysis.
Material name | Praseodymium metal |
Formula | Pr |
CAS No. | 7440-10-0 |
EINECS NO. | 231-120-3 |
Molecular Weight | 140.91 |
Density | 6.71g/cm3 |
Melting point | 931°C |
Bolting point | 3520°C |
Appearance | Silver gray ingot or lump, or other customized size |
Purity/Specification (Pr/REM) | 99%-99.99% |
Purity | 2N | 2N | 2N5 | 2N5 | 3N | |
TRE%min. | 99 | 99 | 99.5 | 99.5 | 99.5 | |
Pr/TRE%min. | 99 | 99 | 99.5 | 99.5 | 99.9 | |
Rare earth impurities %max. | subtotal | subtotal | subtotal | subtotal | subtota | |
Non rare earth impurities | Fe | 0.3 | 0.15 | 0.12 | 0.12 | 0.05 |
Si | 0.05 | 0.05 | 0.05 | 0.03 | 0.03 | |
Ca | 0.03 | 0.02 | 0.01 | 0.01 | 0.01 | |
Mg | 0.03 | 0.02 | 0.01 | 0.01 | 0.01 | |
Al | 0.1 | 0.08 | 0.05 | 0.03 | 0.03 | |
C | 0.05 | 0.05 | 0.03 | 0.03 | 0.02 | |
O | 0.05 | 0.05 | 0.04 | 0.03 | 0.03 | |
Mo+W | 0.05 | 0.05 | 0.05 | 0.04 | 0.03 | |
Cl | 0.03 | 0.03 | 0.01 | 0.01 | 0.01 | |
S | 0.02 | 0.01 | 0.01 | 0.01 | 0.01 | |
P | 0.05 | 0.05 | 0.03 | 0.02 | 0.02 | |
Cd+Pb+Ni+Cr+Ti | 0.05 | 0.04 | 0.03 | 0.03 | 0.02 | |
Praseodymium Metal (Pr) is a soft, silvery-white rare-earth metal with exceptional thermal and magnetic properties, critical for advanced industrial applications. With a CAS number of 7440-10-0 and an atomic weight of 140.91 g/mol, this metal offers purity levels of 99.9%-99.99% (depending on grade). Characterized by a melting point of 931°C and a density of 6.77 g/cm³, Praseodymium Metal stands out for its ability to form stable alloys with high-temperature resistance and strong magnetic responses. Its low vapor pressure and ductility make it ideal for precision manufacturing processes requiring both strength and malleability.
1. High-Temperature Stability: Maintains structural integrity in oxidizing environments up to 800°C, making it a key component in superalloys for aerospace engines.
2. Magnetic Susceptibility: Enhances the coercivity and remanence of permanent magnets when alloyed with cobalt and iron, critical for electric vehicle motors and wind turbines.
3. Alloying Versatility: Forms homogeneous mixtures with aluminum, nickel, and titanium, improving corrosion resistance and creep strength in industrial coatings.
4. Fine Surface Finish: Available in polished ingots and granules with minimal oxide contamination, ensuring consistent performance in high-precision applications.
5. Low Radioactivity: Naturally occurring isotopes are non-radioactive, simplifying handling and compliance with safety regulations.
• High-Temperature Alloys: Added to nickel-based superalloys (e.g., Inconel) to refine grain structure, enhancing durability in gas turbine blades subjected to extreme heat and stress.
• Magnetic Materials: Used in Pr-Co permanent magnets for audio speakers and sensors, offering higher operating temperatures compared to neodymium-based alternatives.
• Catalysis: Acts as a promoter in petroleum refining catalysts, improving the efficiency of hydrocracking reactions to produce cleaner fuels.
• Electronics: Deposited as thin films in optical storage devices to enhance data recording sensitivity through magneto-optical effects.
• Research & Development: Serves as a reference material in X-ray diffraction studies and as a dopant in single-crystal growth for solid-state physics research.
Q: What forms does Praseodymium Metal typically come in?
A: Available as ingots (≥99.9% purity), rods, granules, and sputtering targets, with custom shapes available for specialized manufacturing processes.
Q: How does Praseodymium Metal compare to other rare-earth metals in high-temperature applications?
A: It offers a balance of lower density than dysprosium and higher oxidation resistance than erbium, making it optimal for weight-sensitive high-temperature environments.
Q: Can it be used in additive manufacturing (3D printing)?
A: Yes, as a powder feedstock in laser powder bed fusion, it enables the production of complex-shaped components with enhanced thermal fatigue resistance.
Q: What precautions are needed for long-term storage?
A: Store in sealed containers under dry argon or vacuum to prevent surface oxidation; avoid exposure to moisture, which may cause mild tarnishing.
Q: Is there a minimum order quantity for custom purity grades?
A: Standard orders start at 1 kg, but smaller research quantities (10-100 g) are available upon request with certified purity analysis.
Material name | Praseodymium metal |
Formula | Pr |
CAS No. | 7440-10-0 |
EINECS NO. | 231-120-3 |
Molecular Weight | 140.91 |
Density | 6.71g/cm3 |
Melting point | 931°C |
Bolting point | 3520°C |
Appearance | Silver gray ingot or lump, or other customized size |
Purity/Specification (Pr/REM) | 99%-99.99% |
Purity | 2N | 2N | 2N5 | 2N5 | 3N | |
TRE%min. | 99 | 99 | 99.5 | 99.5 | 99.5 | |
Pr/TRE%min. | 99 | 99 | 99.5 | 99.5 | 99.9 | |
Rare earth impurities %max. | subtotal | subtotal | subtotal | subtotal | subtota | |
Non rare earth impurities | Fe | 0.3 | 0.15 | 0.12 | 0.12 | 0.05 |
Si | 0.05 | 0.05 | 0.05 | 0.03 | 0.03 | |
Ca | 0.03 | 0.02 | 0.01 | 0.01 | 0.01 | |
Mg | 0.03 | 0.02 | 0.01 | 0.01 | 0.01 | |
Al | 0.1 | 0.08 | 0.05 | 0.03 | 0.03 | |
C | 0.05 | 0.05 | 0.03 | 0.03 | 0.02 | |
O | 0.05 | 0.05 | 0.04 | 0.03 | 0.03 | |
Mo+W | 0.05 | 0.05 | 0.05 | 0.04 | 0.03 | |
Cl | 0.03 | 0.03 | 0.01 | 0.01 | 0.01 | |
S | 0.02 | 0.01 | 0.01 | 0.01 | 0.01 | |
P | 0.05 | 0.05 | 0.03 | 0.02 | 0.02 | |
Cd+Pb+Ni+Cr+Ti | 0.05 | 0.04 | 0.03 | 0.03 | 0.02 | |
