Praseodymium oxide
Properties
Chemical formula: Pr₆O₁₁
Name: Praseodymium(III,IV) oxide / praseodymium oxide
CAS No.: 12037-29-5
Molar mass: 1021.44 g/mol
Density: 6.77 g/cm³
Melting point: approx. 2183 °C
Color: black-brown to deep black
Form: fine powder
Solubility: insoluble in water, soluble in strong inorganic acids
Praseodymium oxide (Pr₆O₁₁), also known as praseodymium(III,IV) oxide, is an inorganic compound belonging to the group of rare-earth oxides. It is typically supplied as a fine, odorless powder with a characteristic black-brown to deep-black appearance and offers very high thermal stability.
Praseodymium oxide is insoluble in water but dissolves in strong inorganic acids, forming the corresponding praseodymium salts. Unlike many other rare-earth oxides, Pr₆O₁₁ is a mixed-valence compound containing both Pr³⁺ and Pr⁴⁺ ions.
One of the most important properties of praseodymium oxide is its ability to produce intense yellow to light-green coloration when incorporated into ceramic and glass matrices. The material also exhibits useful oxygen storage and exchange behavior at elevated temperatures, making it relevant for catalytic and electrochemical systems.
Pr₆O₁₁ is commonly produced by calcining praseodymium hydroxide, oxalate or carbonate in air at temperatures above 800 °C. Its combination of optical, thermal and redox properties makes it useful in pigments, catalysts, ceramics and advanced energy materials.
The element praseodymium is used both as praseodymium metal and in the form of specialized compounds. Praseodymium and its compounds are relevant for permanent magnets, specialty alloys, glass, ceramics, catalysts and fuel-cell technologies.
Would you like to buy praseodymium oxide? Auremo offers praseodymium oxide, praseodymium metal and other rare metals. The praseodymium price, praseodymium metal price and praseodymium price per kg primarily refer to metallic praseodymium, while the price of praseodymium oxide depends on purity, particle size, order quantity and delivery conditions.
Advantages
• Excellent color stability in glass and ceramics
• Produces intense yellow and green coloration
• High oxygen storage and exchange capacity
• Supports rapid redox reactions in catalytic systems
• High thermal stability
• Stability at temperatures above 2100 °C
• Suitable for phase and microstructure stabilization in high-performance ceramics
• Suitable for catalytic, optical and energy-related materials
Applications
• Ceramic and glass pigments
• Praseodymium yellow and zircon-based yellow pigments
• Heat-resistant coloring of tiles and sanitary ceramics
• Three-way automotive catalysts
• Exhaust-gas treatment systems
• Oxygen-storage materials
• Production of PrFeB magnets and praseodymium-containing alloys
• Electric motors and generators
• Specialty glass and UV-absorbing materials
• Solid oxide fuel cells (SOFC)
• Technical and high-performance ceramics
• Materials science and research
Auremo offers a wide range of praseodymium, praseodymium oxide and other rare metals at competitive prices. If you have any questions about Pr₆O₁₁, praseodymium metal, available purity grades, particle sizes or delivery conditions, please contact us directly.
