Product Code : RE-La2O3-5N-PO
Lanthanum oxide is a white, odorless solid that is soluble in dilute acid but insoluble in water.
It is a rare earth oxide compound, which is a basic anhydride and can therefore react with acids and with strong reducing agents in redox reactions. Rare earth oxide compounds contain at least one oxygen anion and one metallic cation.
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Product Information
Lanthanum oxide is a white, odorless solid that is soluble in dilute acid but insoluble in water.
It is a rare earth oxide compound, which is a basic anhydride and can therefore react with acids and with strong reducing agents in redox reactions. Rare earth oxide compounds contain at least one oxygen anion and one metallic cation. They are typically insoluble in aqueous solutions (water) and extremely stable, which make them useful in ceramic structures. For this reason, Lanthanum oxide has a wide range of applications from producing clay bowls to advanced electronics. Lanthanum oxide is also useful in lightweight structural components in aerospace and electrochemical applications such as fuel cells due to its ionic conductivity. Lanthanum Oxide La2O3 is applied in petroleum and environment protection catalysts, mischmetal, polishing powders and Rare Earth fertilizers. It's mainly used for manufacturing the precision optical glass and optical fibers. ATT can provide different purity levels of La2O3 and nano La2O3
Synonyms
Lanthanum Trioxide, Lanthana, Lanthania (La2O3), Lanthanum(III) oxide
Lanthanum(III) Oxide, Lanthanum sesquioxide, Lanthana, Dilanthanum oxide, CAS 12680-02-3
Lanthanum Oxide (La2O3) Specification
Chemical Composition
| 6N | 5N | 4N5 | 4N | 3N | 2N | |
| Grade | 99.9999% | 99.999% | 99.995% | 99.99% | 99.9% | 99% |
| CHEMICAL COMPOSITION | ||||||
| La2O3/TREO (% min.) | 99.9999 | 99.999 | 99.995 | 99.99 | 99.9 | 99 |
| TREO (% min.) | 99.5 | 99 | 99 | 98 | 98 | 98 |
| Loss on ignition (% max.) | 1 | 1 | 1 | 2 | 2 | 2 |
| Rare Earth Impurities | ppm max. | ppm max. | ppm max. | ppm max. | % max. | % max. |
| CeO2 Pr6O11 Nd2O3 Sm2O3 Eu2O3 Gd2O3 Y2O3 | 0.5 0.5 0.5 0.2 0.2 0.2 0.5 | 3 3 2 2 2 2 5 | 5 5 5 5 5 5 5 | 50 50 50 10 10 10 10 | 0.05 0.02 0.02 0.01 0.001 0.001 0.01 | 0.5 0.1 0.1 0.1 0.1 0.1 0.1 |
| Non-Rare Earth Impurities | ppm max. | ppm max. | ppm max. | ppm max. | % max. | % max. |
| Fe2O3 SiO2 CaO CoO NiO CuO MnO2 Cr2O3 CdO PbO | 1 10 10 2 2 2 2 2 5 5 | 2 50 50 2 2 2 2 2 5 5 | 10 50 50 2 2 2 2 3 5 10 | 50 100 100 5 5 3 5 3 5 50 | 0.01 0.05 0.2 | 0.02 0.1 0.5 |
* Special requirements are available.
Physical Properties – Lanthanum Oxide (La2O3)
| Appearance Form | Powder |
| Color | White |
| Melting Point | 2315°C |
| Boiling Point | 4200°C |
| Density | 6.51 g/cm3 |
| Solubility in H2O | Insoluble |
| Crystal Phase / Structure | Hexagonal |
| Exact Mass | 325.797 |
| Monoisotopic Mass | 325.797 |
| Bandgap | 4.3 eV |
| Magnetic susceptibility (χ) | −78.0·10−6 cm3/mol |
| Crystal structure | Hexagonal, hP5 |
Lanthanum Oxide (La2O3) application
• Together with oxides of tungsten, tantalum, and thorium, La2O3 improves the resistance of the glass to attack by alkali.
• La2O3 is an ingredient for the manufacture of piezoelectric and thermoelectric materials.
• La2O3 is also used in X-ray imaging intensifying screens, phosphors as well as dielectric and conductive ceramics.
• La2O3 has been examined for the oxidative coupling of methane.
Lanthanum Oxide is mainly used for manufacturing precision optical glass and optical fiber. It is also used in electronic industry as ceramic capacitor and piezoelectric ceramic admixture. It is also used as raw material of lanthanum borate and the catalyst for petroleum separation and refining.
• La2O3 is used to make optical glasses, to which this oxide confers increased density, refractive index, and hardness.
Lanthanum Oxide (La2O3) Packing
Standard Packing: Packed in Drums.
Special package is available on request.
Lanthanum Oxide (La2O3) is clearly tagged and labeled externally to ensure efficient identification and quality control. Great care is taken to avoid any damage which might be caused during storage or transportation.
Chemical Identifiers
| Linear Formula | La2O3 |
| MDL Number | MFCD00011071 |
| CAS | 1312-81-8 |
| EC No. | 215-200-5 |
| Beilstein/Reaxys No. | N/A |
| Pubchem CID | 3280778 |
| IUPAC Name | lanthanum(3+); oxygen(2-) |
| SMILES | [O-2].[O-2].[O-2].[La+3].[La+3] |
| InchI Identifier | InChI=1S/2La.3O/q2*+3;3*-2 |
| InchI Key | MRELNEQAGSRDBK-UHFFFAOYSA-N |
