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With a CAS number of 35785-84-7 and a molecular weight of 704.14 g/mol (hydrated form), this compound offers purity levels of 99.9%-99.99% (4N), featuring low solubility in water (0.12 g/100 mL at 20°C) and excellent thermal decomposability. Its ability to release clean CO₂ and H₂O during calcination makes it ideal for producing ultra-pure Pr6O11 and metallic praseodymium with minimal impurity incorporation.
1. High Purity Precursor: Thermal decomposition yields Pr6O11 with <50ppm non-rare-earth impurities, critical for electronic and magnetic applications requiring pristine material properties.
2. Controlled Decomposition: Releases water of crystallization at 100-150°C and decomposes to oxalate at 200-300°C, with complete conversion to oxide by 600°C, enabling precise control over intermediate phases.
3. Fine Particle Formation: Produces nanoscale oxide particles (20-50 nm) upon calcination, suitable for high-density ceramics and catalyst supports without additional milling.
4. Low Heavy Metal Content: Stringent purification reduces Fe, Ni, and Cu levels to <5ppm, preventing catalytic poisoning in chemical synthesis applications.
5. Stable Hydrate Structure: The decahydrate form remains non-hygroscopic under ambient conditions, ensuring flowability and ease of handling in automated manufacturing processes.
• Oxide Synthesis: A primary precursor for Pr6O11, used as a colorant in glass (producing green shades) and as a catalyst in petroleum refining to upgrade heavy hydrocarbons.
• Metal Production: Reduced by calcium or magnesium to produce high-purity praseodymium metal (99.95%), essential for alloying with iron and cobalt to create high-strength magnets for electric vehicle motors.
• Catalysis: Supports for methanol-to-olefin (MTO) catalysts, enhancing the selectivity of zeolite-based systems by stabilizing active sites through Pr³+ ion interactions.
• Ceramic Composites: Doped into zirconia ceramics to improve fracture toughness and thermal shock resistance, used in cutting tools for machining hardened steels.
• Research Reagents: Serves as a reference material for thermogravimetric analysis (TGA) and as a dopant in perovskite oxides for solid oxide fuel cell (SOFC) electrolytes.
Q: What is the ideal calcination temperature to obtain Pr6O11?
A: Heating to 650-700°C in air for 2 hours ensures complete conversion from oxalate to oxide, with a yield of ~85% based on the hydrated precursor.
Q: Can Praseodymium Oxalate be used in aqueous synthesis without decomposition?
A: While slightly soluble in acidic solutions (e.g., HNO3), it remains stable in neutral water, making it suitable for co-precipitation processes with other rare-earth oxalates.
Q: How does particle size affect the final oxide properties?
A: Smaller particles (nanoscale) result in higher surface area, beneficial for catalytic applications, while larger particles (micron-scale) are preferred for ceramic densification to reduce sintering time.
Q: Is this product suitable for nuclear applications?
A: Praseodymium has no significant nuclear absorption cross-section, making it safe for use in reactor control systems and radiation shielding materials.
Q: What safety precautions are recommended during handling?
A: Wear dust masks and gloves to avoid inhalation/contact; although non-toxic, prolonged exposure to fine powders may irritate respiratory tracts.
With a CAS number of 35785-84-7 and a molecular weight of 704.14 g/mol (hydrated form), this compound offers purity levels of 99.9%-99.99% (4N), featuring low solubility in water (0.12 g/100 mL at 20°C) and excellent thermal decomposability. Its ability to release clean CO₂ and H₂O during calcination makes it ideal for producing ultra-pure Pr6O11 and metallic praseodymium with minimal impurity incorporation.
1. High Purity Precursor: Thermal decomposition yields Pr6O11 with <50ppm non-rare-earth impurities, critical for electronic and magnetic applications requiring pristine material properties.
2. Controlled Decomposition: Releases water of crystallization at 100-150°C and decomposes to oxalate at 200-300°C, with complete conversion to oxide by 600°C, enabling precise control over intermediate phases.
3. Fine Particle Formation: Produces nanoscale oxide particles (20-50 nm) upon calcination, suitable for high-density ceramics and catalyst supports without additional milling.
4. Low Heavy Metal Content: Stringent purification reduces Fe, Ni, and Cu levels to <5ppm, preventing catalytic poisoning in chemical synthesis applications.
5. Stable Hydrate Structure: The decahydrate form remains non-hygroscopic under ambient conditions, ensuring flowability and ease of handling in automated manufacturing processes.
• Oxide Synthesis: A primary precursor for Pr6O11, used as a colorant in glass (producing green shades) and as a catalyst in petroleum refining to upgrade heavy hydrocarbons.
• Metal Production: Reduced by calcium or magnesium to produce high-purity praseodymium metal (99.95%), essential for alloying with iron and cobalt to create high-strength magnets for electric vehicle motors.
• Catalysis: Supports for methanol-to-olefin (MTO) catalysts, enhancing the selectivity of zeolite-based systems by stabilizing active sites through Pr³+ ion interactions.
• Ceramic Composites: Doped into zirconia ceramics to improve fracture toughness and thermal shock resistance, used in cutting tools for machining hardened steels.
• Research Reagents: Serves as a reference material for thermogravimetric analysis (TGA) and as a dopant in perovskite oxides for solid oxide fuel cell (SOFC) electrolytes.
Q: What is the ideal calcination temperature to obtain Pr6O11?
A: Heating to 650-700°C in air for 2 hours ensures complete conversion from oxalate to oxide, with a yield of ~85% based on the hydrated precursor.
Q: Can Praseodymium Oxalate be used in aqueous synthesis without decomposition?
A: While slightly soluble in acidic solutions (e.g., HNO3), it remains stable in neutral water, making it suitable for co-precipitation processes with other rare-earth oxalates.
Q: How does particle size affect the final oxide properties?
A: Smaller particles (nanoscale) result in higher surface area, beneficial for catalytic applications, while larger particles (micron-scale) are preferred for ceramic densification to reduce sintering time.
Q: Is this product suitable for nuclear applications?
A: Praseodymium has no significant nuclear absorption cross-section, making it safe for use in reactor control systems and radiation shielding materials.
Q: What safety precautions are recommended during handling?
A: Wear dust masks and gloves to avoid inhalation/contact; although non-toxic, prolonged exposure to fine powders may irritate respiratory tracts.
