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Neodymium Oxalate (Nd₂(C₂O₄)₃·10H₂O) is a light purple crystalline powder renowned for its role in rare-earth element (REE) purification and as a precursor for high-performance materials. With a CAS number of 30467-57-9 and a molecular weight of 736.84 g/mol (hydrated form), this compound offers purity levels of 99.9%-99.99% (4N), featuring low solubility in water (0.12 g/L at 25°C) and controlled thermal decomposition properties. Its fine particle size and high chemical homogeneity make it indispensable in downstream processing of neodymium-based products.
1. Selective Precipitation: Enables efficient separation of Nd³+ ions from mixed REE solutions, critical for the production of high-purity neodymium oxide and metal.
2. Controlled Thermal Decomposition: Releases CO₂ and H₂O at 300-400°C, leaving behind pure Nd₂O₃ with minimal residual impurities, ideal for ceramic and magnetic applications.
3. Low Heavy Metal Content: Stringent purification ensures iron, copper, and lead levels <10 ppm, meeting the strict requirements of electronic and medical industries.
4. Flowable Powder Morphology: Uniform particle size (5-15 μm) with low agglomeration, facilitating easy handling in automated dosing systems.
5. Stable Hydration State: Maintains ten crystal water molecules under standard storage conditions, ensuring consistent stoichiometry for precise material synthesis.
• REE Separation Technology: Used in solvent extraction processes to precipitate Nd³+ from leachates of monazite and bastnasite ores, improving separation efficiency by 20% compared to conventional salts.
• Catalyst Precursors: Converted to Nd₂O₃ for use in automotive catalytic converters, enhancing NOx reduction activity through its high surface area and redox properties.
• Phosphor Synthesis: Combines with europium oxalate to create red-emitting phosphors for LED displays, offering stable luminescence under high-current operation.
• Research Reagents: Serves as a model compound in thermogravimetric analysis (TGA) studies and as a precursor for neodymium-doped glass fibers in laser systems.
• Ceramic Capacitors: Provides Nd³+ ions for dielectric materials in multilayer ceramic capacitors (MLCCs), improving capacitance stability at elevated temperatures.
Q: What is the primary advantage of using oxalate over other neodymium salts?
A: Oxalate precipitation offers higher purity and better control over final oxide particle size compared to chlorides or nitrates, critical for magnetic and optical applications.
Q: Can Neodymium Oxalate be used directly in sintering processes?
A: No, it must be calcined at 600-800°C to form Nd₂O₃ first; the decomposition process is exothermic but predictable with proper thermal management.
Q: How should it be stored to prevent dehydration?
A: Store in airtight containers at room temperature away from desiccants; humidity between 40%-60% RH helps maintain the hydrated crystal structure.
Q: What is the typical particle size distribution for industrial use?
A: Standard grade offers D50=8 μm with a span of <1.5, while custom grades can be tailored to nanometer-scale for advanced coating applications.
Q: Does it comply with REACH and RoHS regulations for use in consumer electronics?
A: Yes, all production batches undergo rigorous testing for restricted substances, with certificates of compliance available upon request.
Neodymium Oxalate (Nd₂(C₂O₄)₃·10H₂O) is a light purple crystalline powder renowned for its role in rare-earth element (REE) purification and as a precursor for high-performance materials. With a CAS number of 30467-57-9 and a molecular weight of 736.84 g/mol (hydrated form), this compound offers purity levels of 99.9%-99.99% (4N), featuring low solubility in water (0.12 g/L at 25°C) and controlled thermal decomposition properties. Its fine particle size and high chemical homogeneity make it indispensable in downstream processing of neodymium-based products.
1. Selective Precipitation: Enables efficient separation of Nd³+ ions from mixed REE solutions, critical for the production of high-purity neodymium oxide and metal.
2. Controlled Thermal Decomposition: Releases CO₂ and H₂O at 300-400°C, leaving behind pure Nd₂O₃ with minimal residual impurities, ideal for ceramic and magnetic applications.
3. Low Heavy Metal Content: Stringent purification ensures iron, copper, and lead levels <10 ppm, meeting the strict requirements of electronic and medical industries.
4. Flowable Powder Morphology: Uniform particle size (5-15 μm) with low agglomeration, facilitating easy handling in automated dosing systems.
5. Stable Hydration State: Maintains ten crystal water molecules under standard storage conditions, ensuring consistent stoichiometry for precise material synthesis.
• REE Separation Technology: Used in solvent extraction processes to precipitate Nd³+ from leachates of monazite and bastnasite ores, improving separation efficiency by 20% compared to conventional salts.
• Catalyst Precursors: Converted to Nd₂O₃ for use in automotive catalytic converters, enhancing NOx reduction activity through its high surface area and redox properties.
• Phosphor Synthesis: Combines with europium oxalate to create red-emitting phosphors for LED displays, offering stable luminescence under high-current operation.
• Research Reagents: Serves as a model compound in thermogravimetric analysis (TGA) studies and as a precursor for neodymium-doped glass fibers in laser systems.
• Ceramic Capacitors: Provides Nd³+ ions for dielectric materials in multilayer ceramic capacitors (MLCCs), improving capacitance stability at elevated temperatures.
Q: What is the primary advantage of using oxalate over other neodymium salts?
A: Oxalate precipitation offers higher purity and better control over final oxide particle size compared to chlorides or nitrates, critical for magnetic and optical applications.
Q: Can Neodymium Oxalate be used directly in sintering processes?
A: No, it must be calcined at 600-800°C to form Nd₂O₃ first; the decomposition process is exothermic but predictable with proper thermal management.
Q: How should it be stored to prevent dehydration?
A: Store in airtight containers at room temperature away from desiccants; humidity between 40%-60% RH helps maintain the hydrated crystal structure.
Q: What is the typical particle size distribution for industrial use?
A: Standard grade offers D50=8 μm with a span of <1.5, while custom grades can be tailored to nanometer-scale for advanced coating applications.
Q: Does it comply with REACH and RoHS regulations for use in consumer electronics?
A: Yes, all production batches undergo rigorous testing for restricted substances, with certificates of compliance available upon request.
