Description

Didymium Oxide is a high-purity mixed rare earth oxide primarily composed of neodymium and praseodymium. This specialized material is critical for applications requiring specific optical, catalytic, and magnetic properties derived from its unique lanthanide composition. It is essential for manufacturers and researchers in the glass and ceramics, catalyst, and electronics industries seeking consistent quality and reliable supply.

Application

• Glass Polishing & Coloring Agent: Used to produce high-quality polishing powders for optical lenses and to impart specific colors in specialty glassware.
• Catalyst Manufacturing: Serves as a key component or promoter in catalysts for petroleum cracking and automotive exhaust systems.
• Specialty Ceramics & Pigments: Imparts unique coloration and enhances the properties of advanced ceramics and inorganic pigments.
• Optical Filter Production: Essential for manufacturing didymium glass filters used in scientific instruments and welding goggles to absorb specific light wavelengths.
• Magnetic Material Precursor: Acts as a starting material in the synthesis of high-performance neodymium-based permanent magnets (NdFeB).
• Research & Development: Utilized in laboratories for developing new materials and studying lanthanide chemistry.

Basic Information

Product Name	Didymium Oxide
CAS No.	11141-21-2
Molecular Formula	Pr6O11 + Nd2O3 (Mixed Oxide)
Molecular Weight	~336.48 (Pr6O11) / ~336.48 (Nd2O3)
Synonyms	Didymia; Neodymium-Praseodymium Oxide; Praseodymium-Neodymium Oxide; Rare Earth Oxide Mixture; Lanthanide Oxide Mixture; DIDY; (Pr,Nd)2O3
EINECS	234-387-9

Quality Control

Our Didymium Oxide is produced under a stringent quality management system to ensure batch-to-batch consistency and high purity. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as rare earth composition, total rare earth oxide (TREO) content, and impurity levels. Our quality commitment aligns with industrial and research-grade specifications to meet your precise application requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and should be kept away from strong acids and strong oxidizing agents.

Specification

Item	Specification
Appearance	Light brown powder
Total Rare Earth Oxide (TREO)	≥ 99.0 %
Neodymium Oxide (Nd2O3) Content	~75-80 % of TREO
Praseodymium Oxide (Pr6O11) Content	~20-25 % of TREO
Loss on Ignition (LOI)	≤ 1.0 %
Chloride (Cl)	≤ 0.01 %
Sulfate (SO4)	≤ 0.01 %
Iron (Fe)	≤ 0.005 %
Heavy Metals (as Pb)	≤ 0.001 %

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.