La
metal· JVASP-25098· La
Lanthanum (La) is a soft, silvery rare-earth metal belonging to the lanthanide series, characterized by high reactivity and strong affinity for oxygen and other nonmetals. It is primarily used in alloy systems—particularly in nickel-metal hydride batteries, steel desulfurization, and optical glass applications—where its ability to enhance strength, workability, and optical properties makes it valuable despite requiring careful handling due to its reactivity. Engineers select lanthanum-containing materials when corrosion resistance, hydrogen storage capacity, or refractive index tuning is critical, though cost and processing complexity typically limit its use to high-performance and specialty applications.
rechargeable battery systemssteel alloy desulfurizationoptical glass and lenseshydrogen storage materialscatalytic applicationsspecialty alloy strengthening
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 4,075.6 | ksi | — | ||
Poisson's Ratio(ν) | 0.3800 | - | — | ||
Shear Modulus(G) | -609.2 | ksi | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.2269 | lb/in³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.000 | eV | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Seebeck Coefficient(S) | -8.610 | µV/K | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf) | 0.1322 | eV/atom | — |
Verified Unverified Low confidence (<80%) Link to source
Regulatory Screening
Environmental
Export Control
RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.