Description

Rare Earth Oxides CAS NO 68188-83-0 represent a group of high-purity inorganic compounds essential for modern advanced technologies. Their unique electronic, magnetic, and optical properties make them critical components in a wide range of industrial and research applications. These materials are indispensable for manufacturers and R&D facilities in sectors such as electronics, catalysis, and materials science, where consistent quality and reliable supply are paramount.

Application

• Catalyst Manufacturing: Key components in automotive catalytic converters, petroleum cracking catalysts, and fine chemical synthesis.
• Phosphors & Luminescent Materials: Used in the production of phosphors for LED lighting, display screens (LCD, PDP), and X-ray intensifying screens.
• Permanent Magnets: Critical raw materials for manufacturing high-performance neodymium (NdFeB) and samarium-cobalt (SmCo) magnets used in motors, wind turbines, and hard disk drives.
• Glass Polishing & Ceramics: Cerium oxide-based compounds are widely used as precision polishing agents for optical glass, semiconductors, and in specialty ceramics for enhanced properties.
• Advanced Materials: Incorporated into superconductors, hydrogen storage alloys, and high-temperature structural ceramics.
• Environmental Applications: Utilized in water treatment processes and as additives for reducing diesel engine emissions.

Basic Information

Item	Detail
Product Name	Rare Earth Oxides
CAS No.	68188-83-0
Molecular Formula	MxOy (M = La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Y, Sc)
Molecular Weight	Varies by specific oxide
Synonyms	REO; Rare Earth Metal Oxides; Lanthanide Oxides; Lanthanoid Oxides; Cerium Group Oxides; Yttrium Group Oxides; Scandium Oxide; Lanthanum Oxide; Cerium Oxide; Neodymium Oxide; Praseodymium Oxide; Samarium Oxide; Europium Oxide; Gadolinium Oxide; Terbium Oxide; Dysprosium Oxide; Holmium Oxide; Erbium Oxide; Thulium Oxide; Ytterbium Oxide; Lutetium Oxide; Yttrium Oxide
EINECS	Contact for details

Quality Control

Our Rare Earth Oxides are produced and tested under stringent quality management systems to ensure batch-to-batch consistency and high purity. We offer various grades, including 99.9% (3N), 99.99% (4N), and 99.999% (5N) purity, tailored to specific application requirements. Quality is verified through advanced analytical techniques such as ICP-OES/MS, XRD, and BET surface area analysis. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profiles, and physical characteristics is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). These materials are hygroscopic (moisture-sensitive) and should be kept in a desiccated environment to prevent caking and degradation of properties. Keep away from strong acids and strong oxidizing agents.

Specification

Item	Specification
Appearance	Fine powder (color varies by element)
Purity (REO basis)	≥ 99.9%
Identification (XRD)	Conforms
Loss on Ignition	≤ 1.0 %
Particle Size (D50)	1-5 µm (or as requested)
Specific Surface Area (BET)	5-50 m²/g (or as requested)
Non-Rare Earth Impurities (ICP-MS)	≤ 100 ppm total

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