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3N Purity Lanthanum Hexaboride (LaB₆) Nanoparticles Cas No.12008-21-8
II. Physicochemical Properties
(I) Basic Chemical Properties
Chemical formula: LaB₆
Molar mass: 203.78 g/mol
Chemical stability: Stable at room temperature; insoluble in water, hydrochloric acid and other common acids; low chemical reactivity and excellent corrosion resistance.
(II) Physical Properties
Appearance: Violet or black crystals
Density: 4.72 g/cm³
Melting point: 2210℃ (4010°F, 2480 K)
Crystal structure: Cubic crystal structure
Other key properties: High hardness, good electrical conductivity, outstanding thermionic emission; superconductor with a transition temperature of 0.45 K.
Coperate Specificatios of Lanthanum Hexaboride (LaB6)
| Item No. | Average Particle Size | Purity (%) | Specific Surface Area (m²/g) | Bulk Density (g/cm³) | True Density (g/cm³) | Crystal Form | Color |
| BHLH3N-500nm | 500 nm | 99.9 | 46 | 0.49 | 4.7 | Cubic | Purple |
| BHLH3N-1μm | 1 μm | 99.9 | 32 | 0.89 | 4.7 | Cubic | Purple |
Notes: Customized production is available for alternative particle size specifications upon customer request.
III. Application Fields and Specific Uses
(I) Electronics and Surface Analysis
LaB₆ is widely used in precision instruments due to its excellent electron emission, stability and calibration performance.
Electron microscopy: Used in SEM and TEM to improve image contrast and resolution. Single-crystal LaB₆ is an ideal material for cathodes in high-power electron tubes, magnetrons, electron beams, ion beams and accelerators.
X-ray diffraction: Serves as a standard reference material for calibrating diffractometers and correcting instrumental broadening of diffraction peaks.
Surface analysis: Applied in STM and AFM for surface morphology and structure research.
(II) Thermionics and New Energy
With excellent thermionic emission, high temperature resistance and superconductivity, LaB₆ is critical in clean energy and electron beam applications.
Thermionic emission cathodes: Used as thermionic cathodes in electron guns, ion sources, accelerators and picture tubes.
Thermoelectric devices: Used as a thermoelectric material for power generation.
Advanced ceramics and energy equipment: Used in fusion reactors and thermionic generators to replace traditional refractory metals and improve durability.
(III) Advanced Ceramics and Metal Processing
High hardness, heat resistance, corrosion resistance and conductivity make LaB₆ ideal for ceramics, metalworking and protection.
Advanced ceramic composites: Used in TiB₂-BN and TiB₂-BN-AlN evaporation boats for aluminum evaporation; applied in Hall-Héroult cell ceramic components for non-ferrous metallurgy; used in hot-pressed TiB₂ armor plates.
Metalworking: Used in cutting tools and cermets for aluminum processing; added to metal-matrix composites to enhance performance.
Non-ferrous metallurgy: Used as crucible material for melting aluminum, copper, magnesium, zinc and other metals.
(IV) Coatings and Specialty Materials
Nanoscale LaB₆ exhibits unique optical properties for functional coatings.
High-temperature coatings: Improves heat resistance of components in high-temperature environments.
Optical coatings: Nanopowder is used in polyethylene films and window glass coatings to block infrared light (750–1300 nm) while transmitting visible light, improving energy efficiency in both hot and cold climates.
(V) Other High-End Fields
LaB₆ is also used in radar, aerospace, instrumentation, medical devices, home appliances, metallurgy and environmental protection. With ongoing technological advances, its application scope will continue to expand.
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