We unleash your business potential by maximize the business innovation.
Send EmailLanthanum Oxide, Lanthanum Trioxide, Trioxide, 1312-81-8
🔢 Lanthanum Oxide, Lanthanum trioxide
CAS No: 1312-81-8 Chemical Formula: La₂O₃
A) Technical Properties
| Property | Value |
|---|---|
| Molecular Weight | 325.82 g/mol |
| Appearance | White, hygroscopic powder |
| Density | 6.51 g/cm³ |
| Melting Point | 2315 °C |
| Solubility | Insoluble in water, soluble in acids |
| Purity (typical) | ≥99.99% (high-purity commercial) |
| Thermal Stability | Excellent |
| Dielectric Constant | High |
| Packaging | Moisture-proof, sealed containers |
B) Application Areas
-
Optical Glass & Fibers: Enhances refractive index, hardness, and UV resistance in high-performance lenses and fibers.
-
Advanced Ceramics: Used in high-temperature structural ceramics and dielectric components.
-
Catalysis: Acts as a support or active phase in automotive and refinery catalysts.
-
Electronics: Used in thin-film coatings, capacitors, and dielectric layers.
-
Battery Materials: Component in NiMH battery cathodes and solid-state electrolytes.
C) Alternatives
| Application Area | Alternatives | Notes |
|---|---|---|
| Optical Glass | Cerium Oxide, Yttrium Oxide | Different refractive and UV properties |
| Catalyst Support | Alumina, Zirconium Oxide | Higher surface area or thermal resistance |
| Pigment Additive | Titanium Dioxide, Iron Oxide | Varies in opacity and color tone |
D) Production Process
-
Source: Extracted from rare earth ores such as monazite or bastnäsite.
-
Leaching: Dissolved using acid or base to separate rare earths.
-
Solvent Extraction: Lanthanum is isolated from other REEs.
-
Precipitation: Converted to carbonate or hydroxide form.
-
Calcination: Heated to high temperatures to yield La₂O₃ powder.
-
Packaging: Stored with desiccants due to hygroscopic nature.
E) Synonyms / Other Names
-
Lanthanum(III) oxide
-
Lanthanum trioxide
-
La₂O₃
-
Lanthana
-
High-purity lanthanum oxide
