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Lanthanum carbonate (chemical formula La₂(CO₃)₃) is a white crystalline powder derived from rare earth ores. This 99.9% purity grade is specifically processed for ceramic glass manufacturing, where it modifies material properties and enhances performance characteristics. The powder appears as a white, odorless solid with minimal solubility in water. It decomposes at temperatures above 800°C to form lanthanum oxide, which is the active component in many ceramic glass formulations.
Commercial procurement teams select this grade for its consistent chemical composition and controlled particle size distribution, which directly impact the final product's optical clarity, thermal stability, and mechanical strength. Our production facilities process 200 tons of lanthanum carbonate powder monthly, supporting both small-batch development projects and large-scale industrial operations.
Parameter | Specification | Test Method |
Lanthanum Oxide (La₂O₃) Content | ≥ 99.9% (relative to total rare earth oxides) | ICP-AES |
Total Rare Earth Oxides (TREO) | ≥ 45% | Gravimetric |
Loss on Ignition (1000°C) | 55-60% | Gravimetric |
Particle Size (D50) | 1-5μm | Laser Diffraction |
Particle Size (D90) | ≤ 10μm | Laser Diffraction |
Fe₂O₃ Impurity | ≤ 10 ppm | ICP-AES |
SiO₂ Impurity | ≤ 20 ppm | ICP-AES |
CaO Impurity | ≤ 50 ppm | ICP-AES |
Cl⁻ Content | ≤ 100 ppm | Ion Chromatography |
Moisture | ≤ 0.5% | Karl Fischer |
Custom particle size distributions are available upon request, with D50 values ranging from 0.5μm to 20μm. All batches undergo testing in our in-house laboratory, which is accredited to ISO 17025 standards.
Lanthanum carbonate is a key raw material in the production of high-refractive-index, low-dispersion optical glass. When incorporated into glass formulations at concentrations of 10-30%, it increases the refractive index (1.7-1.9 range) while maintaining low chromatic aberration. This makes it suitable for camera lenses, microscope objectives, and telescope optics.
In dielectric ceramics, lanthanum carbonate improves dielectric constant and reduces dielectric loss. These properties are critical for manufacturing multilayer ceramic capacitors (MLCCs) and piezoelectric components used in electronic devices. The controlled particle size ensures uniform dispersion in ceramic slurries.
When calcined to form lanthanum oxide, it is used in precision glass polishing applications. The 99.9% purity grade produces polishing powders with consistent hardness and particle shape, resulting in scratch-free surfaces on optical components and display glass.
Our production process follows ISO 9001:2015 quality management system standards. Each batch undergoes three stages of testing: raw material analysis, in-process monitoring, and final product verification. We maintain complete traceability records for all raw materials and finished products.
The product complies with REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) regulations for the European Union and RoHS (Restriction of Hazardous Substances) directive for electronic applications. Certificates of Analysis (CoA) are provided with every shipment, detailing all test results for the specific batch.
Standard packaging options include:
25kg net weight paper bags with inner polyethylene liners
500kg net weight FIBC (bulk bags)
Custom packaging sizes available upon request
Minimum order quantity is 100kg for standard grades. Lead time for production is 7-10 business days for orders under 5 tons, and 15-20 business days for larger quantities. We offer FOB, CIF, and EXW shipping terms to ports worldwide.
When stored in a cool, dry place in its original sealed packaging, the product has a shelf life of 24 months from the date of manufacture.
Yes, we can provide 50-100g samples free of charge for evaluation purposes. Customers are responsible for shipping costs.
In addition to the 99.9% grade, we can produce lanthanum carbonate with purities ranging from 99% to 99.999% to meet specific application requirements.
We accept T/T (30% deposit, 70% before shipment), L/C at sight, and other payment terms negotiable for established enterprise customers.
To request a quotation or additional technical information, please contact our sales team with your specific requirements. Our technical staff can provide guidance on formulation and processing parameters to optimize performance in your ceramic glass applications.
