Lutetium (Lu)
MATERIAL
OVERVIEW
(Lutetia, ancient name for Paris, sometimes called cassiopeium by the Germans) In 1907, Urbain described a process by which Marignac's ytterbium (1879) could be separated into the two elements, ytterbium (neoytterbium) and lutetium. These elements were identical with "aldebaranium" and "cassiopeium," independently discovered at this time. The spelling of the element was changed from lutecium to lutetium in 1949.
Lutetium occurs in very small amounts in nearly all minerals containing yttrium, and is present in monazite to the extent of about 0.003%, which is a commercial source. The pure metal has been isolated only in recent years and is one of the most difficult to prepare. It can be prepared by the reduction of anhydrous LuCl3 or LuF3 by an alkali or alkaline earth metal. The metal is silvery white and relatively stable in air.176Lu occurs naturally (2.6%) with 175Lu (97.4%). It is radioactive with a half-life of about 3 x 1010 years.
Stable lutetium nuclides, which emit pure beta radiation after thermal neutron activation, can be used as catalysts in cracking, alkylation, hydrogenation, and polymerization. Virtually no other commercial uses have been found yet for lutetium.
While new techniques, including ion-exchange reactions, have been developed to separate the various rare-earth elements, lutetium is still the most costly of all rare earths. It is priced at about $75/g.
Reference: Los Alamos National Laboratory, <http://periodic.lanl.gov/elements/71.html>
GENERAL
PROPERTIES
|
Symbol: |
Lu |
|
Atomic
Number: |
71 |
|
Atomic
Weight: |
174.967 |
|
Density: |
9.840
gm/cc |
|
Melting
Point: |
1663
oC |
|
Boiling
Point: |
3395
oC |
|
Thermal
Conductivity: |
0.164
W/cm/oK
@ 298.2 oK |
|
Electrical
Resistivity: |
79.0
microhm-cm @ 25 oC |
|
Electronegativity: |
1.2
Paulings |
|
Specific
Heat: |
0.037
Cal/g/oK
@ 25 oC |
|
Heat
of Vaporization: |
90
K-Cal/gm atom at 3395 oC |
|
Heat
of Fusion: |
4.60
Cal/gm mole |
|
Thermal
Neutron Cross Section: |
108
Barns per Atom |
|
Magnetic
Susceptibility: |
17.9
x 10-6
Emu
@ Room Temp |
|
Magnetic
Moment: |
0
Bohr Magnetons |
|
Temperature
Coefficient of Resistance: |
0.00240
@ 0 oC
to Room Temp |
TYPICAL ANALYSES
Impurities in ppm
|
Material
/ Purity: |
3N
|
|
Tm |
<100 |
|
Al |
<100 |
|
Ca |
<100 |
|
Si |
<100 |
|
Er |
100 |
|
Fe |
100 |
|
Yb |
<100 |
|
Ca |
<100 |
|
Ni |
<100 |
|
Ti |
300 |
|
Y |
<100 |
|
Mg |
<100 |
LUTETIUM ROD
|
Material |
Purity |
|
Lutetium
Rod .250” |
3N |
|
Lutetium
Rod .500” |
3N |
Rod is
cut to order and sold by the inch or foot.
LUTETIUM FOIL
|
Material
|
Purity |
|
Lutetium
Foil .001” |
3N |
|
Lutetium
Foil .002” |
3N |
|
Lutetium
Foil .003” |
3N |
|
Lutetium
Foil .004” |
3N |
|
Lutetium
Foil .005” |
3N |
|
Lutetium
Foil .006” |
3N |
|
Lutetium
Foil .007” |
3N |
|
Lutetium
Foil .008” |
3N |
|
Lutetium
Foil .009” |
3N |
Foil is
cut to order and sold by the square inch or square foot.
LUTETIUM SHEET
|
Material |
Purity |
|
Lutetium
Sheet .010” to .040” |
3N |
Sheet
stock is cut to order and sold by the square inch or square foot.
LUTETIUM SPUTTERING
TARGETS
|
Material |
Purity |
|
Lutetium
Sputtering Target 2"D X .125"T |
3N |
|
Lutetium
Sputtering Target 2"D X .250"T |
3N |
|
Lutetium
Sputtering Target 3"D X .125"T |
3N |
|
Lutetium
Sputtering Target 3"D X .250"T |
3N |
|
Lutetium
Sputtering Target 4"D X .125"T |
3N |
|
Lutetium
Sputtering Target 4"D X .250"T |
3N |
Additional
sizes available upon request. Sputtering Targets produced from Lutetium
compounds are available upon request.
LUTETIUM POWDER, SHOT,
PELLETS, & INGOT
|
Material |
Purity |
|
Lutetium
Chips |
3N |
|
Lutetium
Ingot |
3N |
|
Lutetium
Powder -40 Mesh, Under Oil |
3N |
|
Lutetium
Powder -40 Mesh, Ampoules Under Dry Argon |
3N |
| Lutetium
Powder -40 Mesh, Cans Under Dry Argon |
3N |
Powder,
shot, pellets, and ingots are packaged to order and sold by the gram or
kilogram.
LUTETIUM COMPOUNDS
|
Material |
Purity |
|
Lutetium
Aluminide,LuAl2,
1/4" Pieces by Down |
2N5 |
|
Lutetium
Antimonide,LuSb, 1/4" Pieces by Down |
2N5 |
|
Lutetium
Arsenide,LuAs, 1/4" Pieces by Down |
2N5 |
|
Lutetium
Bismuthide,LuBi, 1/4" Pieces by Down |
2N5 |
|
Lutetium
Boride,LuB4,
-100 Mesh |
3N |
|
Lutetium
Bromide,LuBr3-xH2O,
-60 Mesh |
3N |
|
Lutetium
Bromide,LuBr3,
-60 Mesh |
3N |
|
Lutetium
Chloride,LuCl3-xH2O,
-60 Mesh |
3N |
|
Lutetium
Chloride,LuCl3,
-60 Mesh |
3N |
|
Lutetium
Fluoride,LuF3,
1/4" to 1/8" Pieces |
3N |
|
Lutetium
Fluoride,LuF3,
-325 Mesh |
3N |
|
Lutetium
Hydride,LuH2-3,
-60 Mesh |
3N |
|
Lutetium
Iodide,LuI3-xH2O,
-60 Mesh |
3N |
|
Lutetium
Iodide,LuI3,
-60 Mesh |
3N |
|
Lutetium
Nitride,LuN, -60 Mesh |
3N |
|
Lutetium
Oxide,Lu2O3,
-325 Mesh |
3N,
5N |
|
Lutetium
Oxide,Lu2O3,
1/2" to 1/8" Pieces |
3N |
|
Lutetium
Phosphide,LuP, -60 Mesh |
2N5 |
|
Lutetium
Selenide,Lu2Se3,
-100 Mesh |
3N |
|
Lutetium
Silicide,LuSi2,
1/4" Pieces by Down |
3N |
|
Lutetium
Sulfide,Lu2S3,
-200 Mesh |
3N |
|
Lutetium
Telluride,Lu2Te3,
-20 Mesh |
3N |
Compounds
are packaged to order and sold by the gram or kilogram.
|
Material
Safety Data Sheet - MSDS |