Praseodymium Oxide

Praseodymium oxide powder is a rare earth oxide powder with brown appearance, density of 6.5g/ml (25°C), melting point of about 2500°C, insoluble in water and chemically active, which can be used in the glass and metallurgical industries, as additives for phosphors, ceramic pigments and permanent magnetic materials.

Characteristic

Appearance: usually black brown or brown powder.

Density: Relatively high density, about 6.5 – 6.88g/cm³, which gives it a certain stability and weightiness in the application process.

Melting point: high melting point, about 2042 ℃ – 2183 ℃, with good high temperature resistance, in the high temperature environment can still maintain a stable physical state.

Crystal structure: It has a cubic fluorite structure, which determines the arrangement of atoms within it, and thus affects its physical and chemical properties.

Solubility: insoluble in water, but soluble in acids to produce the corresponding trivalent salts. This is due to its chemical nature is more active, in acidic conditions easy to chemical reaction.

Stability: It is stable at room temperature and pressure, and is the most stable oxide of praseodymium at room temperature and pressure. However, under certain conditions, such as high temperatures and strong oxidising agents, its chemical properties may change.

Oxidation: As an oxide, it has a certain degree of oxidation, and can participate in chemical reactions as an oxidising agent.

Conductivity: It has good electrical conductivity. This property makes it valuable for applications in fields such as electronic materials.

Applications

Ceramics: In building ceramics and daily-use ceramics, praseodymium oxide can be mixed with ceramic glaze to make coloured glaze, which can present a light yellow hue, and the hue is pure and elegant; it can also be used as underglaze pigment alone.

Manufacture of permanent magnetic materials: It can be used to manufacture permanent magnets. Using cheap praseodymium metal instead of pure neodymium metal to manufacture permanent magnet materials can improve the anti-oxidation performance and mechanical properties of permanent magnet materials, and can be processed into various shapes of magnets, which are widely used in all kinds of electronic devices and motors.

Petroleum catalytic cracking: Praseodymium-neodymium enriched materials are added into Y-type zeolite molecular sieves to prepare petroleum cracking catalysts, which can improve the activity, selectivity and stability of the catalysts.

Abrasive polishing: Due to its high hardness, it can be used as an abrasive in the polishing treatment of materials, which can improve the surface finish of materials.

Optical fibre field: In the manufacture of optical fibres, praseodymium oxide can be used as a dopant to improve the performance of optical fibres.

Glass industry: It can be used as a colouring agent for glass to produce various colours of glass.

Additives for phosphors: In the preparation of phosphors, praseodymium oxide can be used as an additive to improve the luminescence performance and colour purity of phosphors.

Scientific research: Due to its unique physical and chemical properties, praseodymium oxide powder is also widely used in various experiments and researches in the field of scientific research.