Lanthanum Powder (La)
MATERIAL OVERVIEW
Characteristics: White, malleable, ductile metal. Oxidizes rapidly in air. Corrodes in moist air, soluble in acids, decomposes in water to lanthanum hydroxide and hydrogen. Hazards: Ignites spontaneously in powdered form. May delay blood clotting and cause liver injury.
GENERAL PROPERTIES
Symbol: |
La |
Atomic Number: |
57 |
Atomic Weight: |
138.9055 |
Density: |
6.145 gm/cc |
Melting Point: |
921 oC |
Boiling Point: |
3457 oC |
Thermal Conductivity: |
0.134 W/cm/K @ 298.2 K |
Electrical Resistivity: |
5.70 microhm-cm @ 25 oC |
Electronegativity: |
1.1 Paulings |
Specific Heat: |
0.047 Cal/g/K @ 25 oC |
Heat of Vaporization: |
96 K-Cal/gm atom at 3457 oC |
Heat of Fusion: |
2.40 Cal/gm mole |
Thermal Neutron Cross Section: |
9 Barns per Atom |
Magnetic Susceptibility |
115 x 10-6 Emu @ Room Temp |
Magnetic Moment: |
0 Bohr Magnetons |
Temperature Coefficient of Resistance: |
0.00218 @ 0 oC to Room Temp |
TYPICAL ANALYSES
Impurities in ppm
Material / Purity: |
3N |
Nd |
400 |
Al |
<100 |
Ca |
<100 |
Fe |
100 |
Mg |
<100 |
Pr |
<100 |
Si |
200 |
Y |
<100 |
Ce |
<100 |
Ca |
100 |
Ni |
100 |
LANTHANUM POWDER
Material |
Purity |
Lanthanum Powder -40 Mesh, Ampoules Under Dry Argon |
3N |
Lanthanum Powder -40 Mesh, Cans Under Dry Argon | 3N |
Powder is packaged to order and sold by the gram or kilogram.
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