Description

Terbium Oxide CAS NO 12036-41-8 is a high-purity inorganic compound, specifically a sesquioxide of the rare earth element terbium. This material is critical for its unique luminescent and magnetic properties, which are essential in advanced technological applications. It is primarily sought by manufacturers in the electronics, specialty glass, and phosphor industries for producing high-performance components.

Application

• Phosphor Manufacturing: A key activator in green phosphors for trichromatic fluorescent lamps, plasma display panels (PDPs), and LED devices.
• Specialty Glass & Ceramics: Used as a dopant to manufacture magneto-optical materials, such as Faraday rotators for optical isolators and lasers.
• Solid-State Electronics: An important raw material in the production of terbium-doped materials for solid-state devices and sensors.
• Catalyst Research: Employed as a catalyst or catalyst component in specialized organic synthesis and petroleum cracking processes.
• Medical Imaging: Investigated for use in X-ray intensifying screens and other medical imaging technologies due to its scintillation properties.
• Permanent Magnets: Used as an additive in neodymium-iron-boron (NdFeB) magnets to improve high-temperature performance.

Basic Information

Product Name	Terbium Oxide
CAS No.	12036-41-8
Molecular Formula	Tb4O7 (common commercial form)
Molecular Weight	747.70 g/mol (for Tb4O7)
Synonyms	Terbium(III,IV) oxide; Terbia; Diterbium trioxide; Tb4O7; Terbium sesquioxide; Terbium oxide (Tb4O7); Rare earth oxide; Terbium tetraoxide
EINECS	234-849-5

Quality Control

Our Terbium Oxide is produced under stringent quality management systems. Each batch undergoes comprehensive analysis to ensure high chemical purity and consistency, meeting the exacting requirements of advanced material synthesis. Certificates of Analysis (COA) detailing purity, trace metal content, and physical characteristics are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). The product is hygroscopic (moisture-sensitive) and should be kept in a desiccated environment to prevent absorption of moisture and carbon dioxide from the air.

Specification

Item	Specification
Appearance	Dark brown powder
Identification (IR)	Conforms
Assay (as Tb4O7)	≥ 99.9% (3N), 99.99% (4N), 99.999% (5N)
Rare Earth Purity (REO)	≥ 99.5%
Loss on Ignition (LOI)	≤ 1.0%
Particle Size (D50)	1-5 µm (or as requested)
Trace Rare Earth Impurities	≤ 100 ppm total (for 4N grade)
Non-Rare Earth Impurities (Fe, Ca, etc.)	Contact for details

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