|
LANTHANUM
PELLETS (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/oK
@ 298.2 oK
|
|
Electrical
Resistivity:
|
5.70
microhm-cm @ 25 oC
|
|
Electronegativity:
|
1.1
Paulings
|
|
Specific
Heat:
|
0.047
Cal/g/oK @ 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
PELLETS
|
Material
|
Purity
|
|
Lanthanum
Chips
|
3N
|
|
Lanthanum
Ingot
|
3N
|
|
Lanthanum
Powder -40 Mesh, Ampoules Under Dry Argon
|
3N
|
|
Lanthanum
Powder -40 Mesh, Cans Under Dry Argon
|
3N
|
pellets
are packaged to order and sold by the gram or
kilogram.
|
 |
