Description

Thulium is a rare earth metal element with the CAS registry number 7440-30-4, prized for its unique magnetic and spectroscopic properties. This high-purity material is essential for advanced technological applications where precise performance is critical. It serves as a key component for research institutions and manufacturers in the electronics, medical, and defense sectors.

Application

• Solid-State Lasers: Doped into host crystals like YAG for medical and military laser systems.
• Portable X-ray Devices: Used as a stable radiation source in compact, battery-powered units.
• High-Temperature Superconductors: A dopant in ceramic materials for specialized research and applications.
• Magnetic Refrigeration: Investigated for use in magnetic cooling systems due to its significant magnetocaloric effect.
• Dopant for Optical Fibers: Enhances signal amplification in telecommunications.
• Nuclear Reactor Control Rods: Utilized for its high neutron absorption cross-section.
• Chemical Research: Acts as a catalyst or reagent in specialized organic synthesis and materials science.
• Luminescent Materials: Incorporated into phosphors for specialized lighting and display applications.

Basic Information

Product Name	Thulium
CAS No.	7440-30-4
Molecular Formula	Tm
Molecular Weight	168.93 g/mol
Synonyms	Thulium metal; Thulium element; Thulium-169; Thulium foil; Thulium powder; Thulium ingot; Thulium turnings; Thulium lump
EINECS	231-140-2

Quality Control

Our Thulium is produced and tested to meet exacting standards for high-purity metals. We provide comprehensive quality assurance, including analysis via Inductively Coupled Plasma Mass Spectrometry (ICP-MS) and Glow Discharge Mass Spectrometry (GDMS) to quantify trace metallic impurities. A detailed Certificate of Analysis (COA) is provided with each batch, confirming compliance with specifications for research and industrial use.

Storage

Preserve in a tightly closed container, protected from light. Due to its property of being easily oxidized, this material must be stored under an inert atmosphere such as argon or nitrogen. Store at room temperature (15-25°C) in a cool, dry, well-ventilated area away from incompatible materials.

Specification

Item	Specification
Appearance	Silvery-gray metal
Assay (Tm)	≥ 99.9% (3N), 99.99% (4N), 99.999% (5N)
Identification (ICP-OES)	Conforms
Trace Rare Earth Impurities	< 100 ppm total (by ICP-MS)
Trace Metallic Impurities (Fe, Ni, Cr, etc.)	< 50 ppm total (by GDMS)
Form	Ingot, foil, powder, turnings, lump

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