When searching for high-purity materials, you come across Gadolinium Oxide, also referred to as Gadolinium(III) oxide. The CAS number 12064-62-9 allows you to confirm its identity. Gadolinium Oxide is utilized in medical imaging, advanced optical glass, and electronics. Your priorities include quality, sourcing, safety, pricing, and thorough documentation.
Gadolinium Oxide Properties & Uses
Physical & Chemical Properties
You need to understand the basic properties of gadolinium oxide before making any decisions. This rare earth oxide appears as a white powder and is known for its excellent chemical stability. The molecular weight of gadolinium oxide is 362.51 g/mol. You will find that it has a high density, which makes it effective in many industrial applications. The density can range from 7.07 g/cm³ to 7.953 g/cm³, depending on the measurement method. The melting point is about 2,420 °C, which means it can withstand very high temperatures.
Gadolinium oxide is slightly hygroscopic. It does not dissolve in water, but you can dissolve it in strong mineral acids. The compound usually forms a monoclinic or cubic crystal structure, which adds to its stability. The CAS number for gadolinium oxide is 12064-62-9. You will often see purity levels between 99.9% and 99.999%. High purity is important for advanced applications.
Tip: High purity gadolinium oxide ensures better performance in sensitive applications like imaging and up-conversion luminescent materials.
Here is a summary of the main physical and chemical properties:
| Property | Value |
|---|---|
| Purity Range | 99.9% – 99.999% |
| CAS Number | 12064-62-9 |
| Molecular Weight | 362.51 g/mol |
| Density | 7.07 – 7.953 g/cm³ |
| Melting Point | ~2,420 °C |
| Crystal Structure | Cubic, Monoclinic |
| Solubility | Insoluble in water; soluble in acids |
| Hygroscopicity | Slightly hygroscopic |
Main Industrial Applications
You will find that the core application areas of gadolinium oxide cover a wide range of advanced technologies. Its excellent optical and magnetic properties make it valuable in many fields. In the electronics industry, you can use gadolinium oxide in cathode ray tubes (CRTs) as a phosphor material. It emits vibrant colors when struck by an electron beam, which improves image quality. Plasma displays also benefit from gadolinium oxide, as it enhances color representation and brightness.
In the field of optical glass, you can use gadolinium oxide to improve clarity and performance. Gadolinium Yttrium Garnets are another important application. These materials are essential for microwave and magnetic materials, as they combine high magnetic strength with stability. Thin film capacitors use gadolinium oxide as a dielectric material, which allows for higher capacitance in smaller sizes.
You will see gadolinium oxide used in magneto-optical devices. These devices rely on both magnetic and optical properties for data storage and sensors. The high neutron absorption cross section of gadolinium oxide makes it useful in neutron detectors and nuclear reactors. It is also used in up-conversion luminescent materials, which convert infrared light into visible light for advanced imaging and infrared applications.
In fuel cell technology, gadolinium-doped ceria (GDC) stands out. You can use GDC as an electrolyte in solid oxide fuel cells. It offers high ionic conductivity and operates at lower temperatures, which improves efficiency. For example, a core/shell BSCF-GDC cathode can achieve a power output of 2 W/cm² at 550 °C. Gadolinium-doped materials also show enhanced electrical conductivity and better oxygen reduction reactions, which are important for energy applications.
Here is a table summarizing the main applications:
| Application Area | Description |
|---|---|
| Optical Glass | Improves clarity and performance in lenses and windows |
| Gadolinium Yttrium Garnets | Used in microwave and magnetic materials for stability and strength |
| Cathode Ray Tubes (CRTs) | Acts as a phosphor, emitting colors for better image quality |
| Plasma Displays | Enhances color and brightness |
| Thin Film Capacitors | Serves as a dielectric for higher capacitance |
| Magneto-Optical Devices | Enables data storage and sensor technologies |
| Fuel Cells (Gd-doped ceria) | Provides high ionic conductivity and efficiency at lower temperatures |
| Neutron Detectors | Utilizes high neutron absorption cross section for safety and measurement |
| MRI Contrast Agents | Used in imaging due to large magnetic moment |
| Up-Conversion Luminescent Materials | Converts infrared light for advanced imaging and infrared applications |
You can also find gadolinium oxide in up-conversion luminescent materials for infrared detection and advanced optical systems. Its role in magnetic materials continues to grow, especially as new technologies demand better performance.
Note: Gadolinium oxide’s unique combination of optical, magnetic, and chemical properties makes it a top choice for many high-tech applications.
Buying Gadolinium(III) Oxide
Purity Grades & Specifications
When you buy gadolinium oxide, you need to choose the right purity and specifications for your application. The purity level affects the performance of the material in different uses, such as phosphors, optical glass, and advanced electronics. For high-end imaging or optical glass manufacturing, you should select a higher purity grade to ensure the best results. Lower purity grades may suit less demanding applications.
Here is a table that shows common purity grades and their typical specifications:
| Purity Grade | Gd2O3 /TREO (% min.) | Loss On Ignition (% max.) | Rare Earth Impurities (ppm max.) |
|---|---|---|---|
| 99.9999 | 99.5 | 0.5 | 0.2 |
| 99.999 | 99 | 0.5 | 1 |
| 99.99 | 99 | 1 | 5 |
| 99.9 | 99 | 1 | 10 |
You will find gadolinium oxide most often in powder form. The particle size can range from 1-5 micrometers to 10-53 micrometers, and you can request custom sizes for special needs. The white powder has a melting point of about 2330 °C and a density of 7.407 g/cm³. These features make it suitable for many types of application, from research to industrial production.
| Property | Value |
|---|---|
| Form | Powder |
| Color | White |
| Particle Size | 1-5 µm, 10-53 µm (custom) |
| Melting Point | 2330 °C |
| Density | 7.407 g/cm³ |
You should always match the purity and particle size to your specific application. For example, high-purity gadolinium oxide is essential for phosphors and optical glass, while standard grades may work for other uses. The extraction and purification process determines the final quality, so you should check the supplier’s technical data.
Tip: Always review the Certificate of Analysis to confirm the actual purity and impurity levels before you place an order.
Supplier Evaluation & Comparison
Choosing the right supplier is just as important as selecting the correct grade. You want a supplier who meets international quality standards and offers reliable customer service. Look for certifications such as ISO 9001 for quality management and ISO 14001 for environmental responsibility. REACH registration and GMP certification also show that the supplier follows strict safety and production rules.
| Standard | Description |
|---|---|
| ISO 9001 | Quality management system for consistent production. |
| ISO 14001 | Environmental management for reduced impact. |
| REACH Registration | Compliance with EU chemical safety regulations. |
| GMP | Good Manufacturing Practice for high-quality production. |
| CoA | Certificate of Analysis for purity and trace metals. |
You should also consider how the supplier handles customization and customer support. Some suppliers, like Epoch, offer both ready-made and custom options to fit your needs. They provide formal contracts, confidentiality agreements, and a seven-day refund guarantee. Fast response times and clear communication help you solve problems quickly.
- Suppliers often provide:
- Customization of particle size and purity.
- Skilled staff to ensure products meet your requirements.
- Careful packaging and fast shipping.
- Detailed product categories for easy selection.
- Professional and responsive customer service.
You should ask about the extraction and purification methods used, as these affect the final product quality. Reliable suppliers will share details about their processes and provide all necessary documentation.
Note: Always compare suppliers based on quality standards, customer feedback, and their ability to meet your specific application needs.
Pricing, Packaging & Documentation
The price of gadolinium oxide depends on purity, order size, and region. For high-purity material (99.9%), you can expect the following price ranges per kilogram:
| Region | Purity Level | Avg. Price Range (USD/kg) |
|---|---|---|
| China | 99.9% | $50–$70 |
| India | 99.9% | $55–$75 |
| Vietnam | 99.9% | $60–$80 |
You should always confirm the latest prices with your supplier, as market conditions can change.
Packaging is important for safe transport and storage. Most suppliers pack gadolinium oxide in steel drums with double-layer PVC bags inside. Each drum usually contains 50 kg of product. This method protects the powder from moisture and contamination during shipping.
When you order gadolinium oxide, you should receive key documents with your shipment. These include:
| Document Type | Description |
|---|---|
| Safety Data Sheet (SDS) | Details on safe handling, hazards, and emergency measures. |
| Certificate of Analysis (COA) | Confirms purity, particle size, and impurity levels. |
| Formal Contract | Outlines terms, pricing, and delivery. |
| Confidentiality Agreement | Protects sensitive information. |
| Refund Policy | Seven-day guarantee for returns or issues. |
Alert: Some countries, such as China, have strict export controls for gadolinium oxide. You must check local regulations and ensure all customs paperwork is complete before importing or exporting this material.
You should always review all documents before accepting delivery. This helps you confirm that the gadolinium oxide meets your application requirements and safety standards.
Handling & Storage of Gadolinium
Safe Handling Guidelines
You should always handle gadolinium oxide with care. This raw material for magnetic resonance imaging can cause irritation if you breathe in dust or fumes. You need to wear protective equipment, such as gloves and a mask, when working with this compound. Avoid direct contact with your skin and eyes. Use proper ventilation in your workspace to reduce exposure. The table below shows important safety information:
| Symptoms of Exposure | Personal Precautions | Most Important Symptoms/Effects |
|---|---|---|
| May cause irritation | Wear appropriate respiratory and protective equipment. Avoid breathing dust or fume. | May cause irritation |
Tip: Always wash your hands after handling gadolinium oxide to prevent accidental transfer.
Storage & Disposal Tips
Store gadolinium oxide in a cool, dry place. Keep the container tightly sealed to protect the powder from moisture, since it is slightly hygroscopic. Use steel drums with inner PVC bags for long-term storage. Label all containers clearly to avoid confusion during detection or diagnosis procedures. Dispose of unused gadolinium oxide according to local regulations. Never pour it down the drain. Contact your waste management provider for proper disposal methods.
Note: Safe storage helps maintain the purity needed for applications like fluorescent display, luminescence, and infrared detecting.
Common Issues & Misconceptions
Many people believe gadolinium-based agents used in mri and medical imaging are biologically inert. This is not true. These agents can interact with the body and improve imaging contrast, but they are not completely inactive. Some users refer to gadolinium as 'free,' which is misleading. You should use terms like unchelated or dissociated instead. Gadolinium also plays a role in fingerprint identification and fingerprint analysis, but you must understand its properties to use it safely.
- Gadolinium-based contrast agents are not biologically inert.
- The term 'free gadolinium' is misleading; use 'unchelated' or 'dissociated' instead.
Alert: Always check the safety data sheet before using gadolinium oxide in fluorescent or luminescence applications.
When you buy gadolinium oxide, focus on purity levels above 99.99% for advanced uses. Always match the grade to your application. Stay aware of market trends and regulations. For questions or samples, reach out to suppliers using the methods below:
| Supplier | Contact Method |
|---|---|
| Stanford Advanced Materials | Website form, [email protected], 949-407-8904 |
| Infinita Materials | hello@infinitamaterials.com, +(1888) 895-1194 |
FAQ
What purity grade should you choose for optical applications?
You should select gadolinium oxide with at least 99.99% purity for optical glass and phosphor uses. Higher purity improves clarity and performance.
How do you safely store gadolinium oxide?
Store gadolinium oxide in a sealed steel drum with inner PVC bags. Keep it in a cool, dry place to prevent moisture absorption.
Which documents do you need when ordering gadolinium oxide?
You need a Certificate of Analysis, Safety Data Sheet, and a formal contract. These documents confirm purity, safety, and order details.
Post time: Jan-19-2026