99.9% Lanthanum Oxide Powder for Optical Glass

Lanthanum Oxide Powder Overview

Lanthanum oxide (La2O3) is an inorganic compound that appears as a white powder. It exhibits solubility in acid and ethanol, with low solubility in water. The compound readily absorbs moisture and carbon dioxide from the atmosphere, requiring appropriate storage conditions. With a molecular weight of 325.82 g/mol, lanthanum oxide has a melting point of 2315°C and a boiling point of 4200°C, making it suitable for high-temperature industrial processes.

Lanthanum oxide is available in purity grades ranging from 99% to 99.9995% (2N to 5N5), with rare earth oxide (REO) content typically above 97%. This range of purity levels allows for selection based on specific industrial requirements. The compound is identified by CAS number 1312-81-8 and EINECS number 215-200-5, conforming to international chemical classification standards.

Lanthanum Oxide Technical Specifications

Lanthanum Oxide Industrial Applications

Lanthanum oxide finds use across multiple industrial sectors due to its unique chemical and physical properties.

Optical Glass Manufacturing

As an additive in glass production, lanthanum oxide modifies the optical properties of glass. It enhances the glass's ability to absorb ultraviolet and infrared radiation, which is beneficial for manufacturing optical lenses, prisms, and other precision optical components. Higher purity grades (4N and above) are typically used in this application to ensure optical clarity and consistent performance.

Ceramic Production

In ceramic manufacturing, lanthanum oxide is incorporated into formulations to adjust thermal and electrical conductivity. This makes it suitable for producing ceramic components used in high-temperature environments and electrical applications. The compound also contributes to the mechanical strength of ceramic materials.

Electronic Components

Lanthanum oxide functions as a high-k dielectric material in the electronics industry. Its high dielectric constant allows for the production of capacitors with increased capacitance in smaller volumes. This property is utilized in the manufacturing of semiconductors and other miniaturized electronic devices.

Additional Applications

Lanthanum oxide serves as a catalyst in various chemical reactions, facilitating specific transformation processes. It is also used as a dopant in phosphors for lighting and display devices, modifying the luminescent properties of these materials.

Frequently Asked Questions About Lanthanum Oxide

What purity grade of lanthanum oxide should I choose?

The appropriate purity grade depends on your specific application. Optical glass and electronic component manufacturing generally require 4N or higher purity grades. Ceramic and general industrial applications may use 3N or lower grades, depending on performance requirements.

How should lanthanum oxide be stored?

Lanthanum oxide should be stored in a cool, dry, well-ventilated area in tightly sealed containers. This prevents absorption of moisture and carbon dioxide from the air, which can alter the compound's properties over time.

What is the typical particle size of lanthanum oxide powder?

Particle size can be customized based on industrial requirements. Standard products are available in various mesh sizes to accommodate different manufacturing processes and application methods.

Is lanthanum oxide compatible with other materials?

Lanthanum oxide is compatible with most glass and ceramic raw materials under standard processing conditions. Compatibility testing is recommended when introducing it into new formulations to ensure desired results.

This comprehensive range of properties and applications makes lanthanum oxide a valuable material for various industrial processes. For specific requirements regarding purity grades, particle sizes, or packaging options, additional information is available upon request.