Certified by China Rare Earth Group
High-Purity Thulium Oxide Tm2O3 12036-44-1 99.999% Supplier
Global supplier of 99.9~99.999% Grades Tm₂O₃
As an authorized partner of China Rare Earth Group, Ruisen delivers ultra-high purity Thulium Oxide (Tm2O3) with ISO9001-certified production and REACH/RoHS compliance.
Tell us your needs – we’ll provide the best price and free samples!
Ruisen, authorized by the China Rare Earth Group, is your trusted global supplier for high-quality Thulium Oxide (Tm₂O₃).
We cater to diverse market needs, supplying industries, distributors, and research institutions worldwide with this versatile rare earth oxide.
Free Technical Consultation by material science experts
Same-Day Shipping with real-time logistics tracking
Customizable Purity (99.9%~99.999%) & Particle Size
Thulium Oxide (Tm2O3): A High-Purity Rare Earth Solution
Thulium oxide (Tm2O3), also called thulia, is a rare earth oxide renowned for its exceptional high purity and versatility in cutting-edge industries. First isolated in 1879 from an impure sample of erbia, this pale green compound derives its name from the ancient name “Thule,” a mythical region in Scandinavia.
As a thermally stable material with a cubic crystal structure, Tm2O3 serves as a cornerstone in electronic and optical technologies, medical imaging, and nuclear reactor systems. Its hygroscopic nature and soluble properties make it indispensable for synthesis processes in material science and chemical manufacturing.
Key Properties & Technical Specifications of Tm₂O₃
Below are the critical properties and specifications of thulium oxide powder:
Property | Details |
---|---|
Purity Grades | 99.9%, 99.99%, 99.999%, and custom 99.997% |
CAS Number | 12036-44-1 |
Density | 8.6 g/cm³ |
Crystalline Structure | Cubic |
Melting Point | 2,341°C |
Particle Size | Customizable (nanoscale to microns) |
Packaging | Moisture-resistant packing for safe storage and transportation |
All batches include a COA (Certificate of Analysis) and SDS (Safety Data Sheet) to ensure compliance with global standards.
Thulium Oxide vs. Alternatives: Why Tm₂O₃ Excels
Tm₂O₃ outperforms substitutes like erbium oxide (Er₂O₃) and yttrium-based compounds in niche applications:
Parameter | Tm₂O₃ | Alternatives |
---|---|---|
Thermal Stability | Stable up to 2,300°C | Degrades above 2,000°C |
Neutron Absorption | High efficiency | Moderate |
Optical Efficiency | Ideal for fiber amplifiers | Limited to lower wavelengths |
Its role as a vital dopant for silica-based fibre amplifiers and specialized uses in ceramics underscores its uniqueness.
Industrial Applications of Thulium oxide : Powering Innovation
- Laser Technology: Thulium oxide enhances solid-state laser efficiency, crucial for aerospace and electronics.
- Medical Imaging: Enables portable X-ray transmission devices with minimal coagulation depth.
- Nuclear Reactors: Acts as a radiation source when bombarded in a nuclear reactor.
- Fuel Cells: Optimizes cells and oxygen generation systems due to its conductive properties.
- Biotechnology: Used in macrophage research and pharmaceutical drug delivery.
Unique Properties Driving Industry Advancements
The optical properties of Tm2O3 enable breakthroughs in quantum computing and advanced materials. Its magnetic behavior supports 3D printing of alloy components, while its luminescent materials are pivotal for optical materials in semiconductor manufacturing.
Scientific Research & Cutting-Edge Innovations with Tm2O3
Researchers leverage hydrothermal methods for synthesis of new materials, such as thulium nitrate derivatives. In analytical labs, Tm2O3 aids in oxoacid salts decomposition and luminescent materials development. Collaborations with laboratory networks explore its role in fuel cells and oxygen generation and agriculture soil sensors.
Do you provide test samples, How are the sample fees handled?
Yes, we offer complimentary test samples delivered via express shipping, with shipping costs to be covered by the client.
What are your advantages?
We are an authorized supplier for China Rare Earth Group, and all our prices are ex-factory. When you order rare earth oxides from us, you not only receive the most competitive pricing, but also benefit from a professional team that handles every detail for you. This not only helps you reduce costs, but also minimizes risks, ensuring a safer and more efficient procurement process.
All products can be tracked in batches via QR codes.
How long will it take to receive your price quotation?
We will provide you with a quote on the same day (Usually respond within 20 minutes) we receive your inquiry.
To ensure the accuracy of the quote, please provide detailed information, including the specific purchase quantity, delivery address, and shipping method (special needs).
What is your minimum order value?
Different rare earth oxides or alloy will have different MOQs.
Please provide your requirements and our professional team will respond to you within 20 minutes.
What is your lead time after I place an order?
Most of our regular products are in stock, Generally, can be dispatched from the factory within 1 weeks, although the exact timeframe may vary depending on the purchase quantity. Additionally, the delivery time to your designated location depends on your geographic area and the selected shipping method.
Why Partner with Ruisen for Tm2O3?
- Authorized Supplier: Directly partnered with China Rare Earth Group.
- Custom Solutions: Tailored powder specifications for metallurgy, ceramics, and optical materials.
- Global Compliance: Full SDS and COA documentation.
- Logistics Excellence: Secure storage and global transportation.
Thulium Oxide (Tm₂O₃) FAQs
A: We supply Tm₂O₃ in 99.9% ~ 99.999% and 99.997% grades for precision applications.
A: Yes, its high neutron absorption outperforms many rare earth elements in nuclear reactor settings.
A: Absolutely. Its portable X-ray compatibility is validated in medical safety data sheets.
A: Thulium oxide can be produced via burning thulium metal or decomposition of their oxoacid salts like thulium nitrate.
For more information, jump to our blog or email our team.
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News & Blog
Follow Our News here for the latest industry information.
Rosneft acquires Siberia’s largest rare earth deposit
Russian state business registration documents show that Rosnef PJC has recently acquired the giant Tomtor rare earth deposit in Siberia, which is considered the largest of its kind in Russia.
Canada’s Neo exits rare earth separation facility in China
Canadian Neo Performance Materials announced on May 22 that it has exited its rare earth separation facility in China. The exit is the conclusion of a strategic review it launched last year.
South Africa launches critical mineral strategy, new mining law open for public comments
South African Minister of Mineral Resources and Energy Gwede Mantashe recently announced that the “Critical Minerals and Metals Strategy” has been formally approved, and the draft Mineral Resources Development Bill 2025 has been released for public comments.
EU must allocate more than 10 billion euros for critical minerals
The EU needs to set up more than 10 billion euros ($11.4 billion) to stimulate investment in the exploration, mining and recycling of critical raw materials, the head of the EU-funded critical minerals agency said on May 14.
Follow Our Blogs to learn more about rare earth elements.

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