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Lanthanum (La) Metal is applied in...
HTRE1172
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Lanthanum (La) Metal is applied in petroleum and environment protection catalysts, mischmetal, polishing powders, and Rare Earth fertilizers. Heeger Materials (HM) provides the best Lanthanum (La) Metal at a competitive price. Specialized and customized services could be available.
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Molecular Formula | La |
Molecular Weight | 138.91 |
Purity | 99.95%/99.9%/99% |
CAS | 7439-91-0 |
Synonyms | Lanthanum Metal/ME57-3N5/Lanthan Metall /Metal De Lanthane/Metal Del Lantano |
Lanthanum is a rare earth element with the symbol La and atomic number 57, which has a silvery-white metallic luster at the fracture, easily oxidized in air. HM stocks a wide variety of rare earth materials for use in electronics, petrochemicals, metallurgy, machinery, energy, environmental protection, agriculture, and other fields. We also offer pure metals and compounds for R&D applications.
Lanthanum (La) Metal Properties
Property | Value/Description |
Atomic Number | 57 |
Atomic Weight | 138.90547 g/mol |
Appearance | Silvery-white, soft, malleable, and ductile metal |
Crystal Structure | Hexagonal close-packed (HCP, α-La) at room temperature; transforms to FCC (β-La) at 310°C |
Density | 6.15 g/cm³ (at 20°C) |
Melting Point | 920°C |
Boiling Point | 3464°C |
Thermal Conductivity | 13.4 W/m·K (at 300 K) |
Thermal Expansion Coefficient | 12.1×10⁻⁶/°C (at 20°C) |
Electrical Resistivity | 61.5 µΩ·cm (at 20°C) |
Electrical Conductivity | ~1.6×10⁶ S/m (at 20°C, ~2.7% IACS compared to copper) |
Young’s Modulus | 36.6 GPa |
Shear Modulus | 14.3 GPa |
Bulk Modulus | 27.9 GPa |
Poisson’s Ratio | 0.28 |
Hardness | ~37 HV (Vickers Hardness, soft metal); Mohs hardness ~2.5 |
Oxidation Behavior | Highly reactive; oxidizes rapidly in air, forming La₂O₃; tarnishes in humid air |
Corrosion Resistance | Poor; reacts with water (slowly at room temperature, faster when heated) |
Specific Heat Capacity | 0.195 J/g·K (at 25°C) |
Heat of Fusion | 6.2 kJ/mol |
Heat of Vaporization | 402 kJ/mol |
Electronegativity | 1.1 (Pauling scale) |
Ionization Energy | First: 538.1 kJ/mol |
ME57-3N5 | ME57-3N | ME57-2N | |
Grade | 99.95% | 99.9% | 99% |
CHEMICAL COMPOSITION |
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La/TREM (% min) | 99.95 | 99.9 | 99 |
TREM (% min) | 99.5 | 99.5 | 99 |
Rear Earth Impurities% | % max. | % max. | % max. |
Ce/TREM Pr/TREM Nd/TREM Sm/TREM Eu/TREM Gd/TREM Y/TREM | 0.05 0.01 0.01 0.001 0.001 0.001 0.001 | 0.05 0.05 0.01 0.005 0.005 0.005 0.01 | 0.1 0.1 0.1 0.1 0.1 0.1 0.1 |
Non-Rear Earth Impurities | % max. | % max. | % max. |
Fe Si Ca Al Mg C Cl | 0.1 0.025 0.01 0.05 0.01 0.03 0.01 | 0.2 0.03 0.02 0.08 0.03 0.05 0.02 | 0.5 0.05 0.02 0.1 0.05 0.05 0.03 |
Lanthanum (La) Metal should be kept sealed and stored in a dry place, avoiding moisture and exposure to air for a long time. The small-sized products are packaged in cartons and the large-sized products are packaged in wooden boxes. The package is 100g/bag, 500g/bag, 25kg/box, or as required.
Heeger Materials Inc., a professional supplier and manufacturer of high-quality Lanthanum products including Lanthanum (La) Metal, leverages extensive expertise in supply and export to offer competitive prices. We provide customized solutions to meet specific requirements, ensuring exceptional quality and customer satisfaction.
Heeger Materials Inc. was established in 2016 in Colorado, USA. We are a specialized supplier of premium-grade metals, alloys, ceramics, powders, and various other materials catering to research, development, and large-scale industrial production in scientific and industrial sectors.
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