Terbium

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Terbium InogtMATERIAL OVERVIEW

Characteristics: A silvery-white rare earth metal that is malleable and ductil and soft enough to be cut with a knife. Terbium is never found in nature as a free element, however, is contained in many minerals such as: cerite, gadolinite, monazite, xenotime and euxenite. It reacts slowly with water and soluble in dilute acids. The salts are colorless. It is highly reactive and should be handled in an inert atmosphere or vacuum.

Derivation: Most separation processes for terbium salt from the rare-earth salt solution is ion exchange. In this process, rare-earth ions are sorbed onto suitable ion-exchange resins by exchange with hydrogen, ammonium or cupric ions present in the resin. The rare earth ions are then selectively washed out by a suitable complexing agent. As with other rare earths, terbium metal is produced by reducing the anhydrous chloride or fluoride with calcium metal. Calcium and tantalum impurities can be removed by vacuum re-melting, distillation, amalgam formation or zone melting.

Terbium is used as a dopant in calcium fluoride, calcium tungstate and strontium molybdate, materials that are used in solid-state devices, and as a crystal stabilizer of fuel cells which operate at elevated temperatures.

Hazards: As with the other lanthanides, terbium compounds are of low to moderate toxicity, although their toxicity has not been investigated in detail.

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GENERAL PROPERTIES

Symbol:

Tb

Atomic Number:

65

Atomic Weight:

158.9254

Density:

8.229 gm/cc

Melting Point:

1356 oC

Boiling Point:

3123 oC

Thermal Conductivity:

0.111 W/cm/K @ 298.2 K

Electrical Resistivity:

-

Electronegativity:

1.2 Paulings

Specific Heat:

0.0437 Cal/g/K @ 25 oC

Heat of Vaporization:

70 K-Cal/gm atom at 3123 oC

Heat of Fusion:

3.90 Cal/gm mole

Thermal Neutron Cross Section:

44 Barns per Atom

Magnetic Susceptibility:

172,000 x 10-6 Emu @ Room Temp

Magnetic Moment:

9.05 Bohr Magnetons

Temperature Coefficient of Resistance:

0 oC to Room Temp

TYPICAL ANALYSES - Impurities in ppm

Material / Purity:

3N

Ca <100
Fe 100
Gd <100
Ni 200
Si <100
Y <100
Eu <100
Dy 100
Mg <100
Al <100

TERBIUM ROD

Material

Purity

Terbium Rod .250” 3N
Terbium Rod .500” 3N

Rod is cut to order and sold by the inch or foot. Call or This email address is being protected from spambots. You need JavaScript enabled to view it. for additional diameters or custom sizes.

TERBIUM FOIL

Material

Purity

Terbium Foil .001” 3N
Terbium Foil .002”  camera1
3N
Terbium Foil .003” 3N
Terbium Foil .004”  camera1
3N
Terbium Foil .005” 3N
Terbium Foil .006” 3N
Terbium Foil .007”  camera1
3N
Terbium Foil .008” 3N
Terbium Foil .009” 3N

Foil is cut to order and sold by the square inch or square foot. Call or This email address is being protected from spambots. You need JavaScript enabled to view it. for additional thicknesses or custom sizes.

TERBIUM SHEET

Material

Purity

Terbium Sheet .010”  camera1
3N
Terbium Sheet .020" 3N
Terbium Sheet .024" 3N
Terbium Sheet .050" 3N

Sheet is cut to order and sold by the square inch or square foot. Call or This email address is being protected from spambots. You need JavaScript enabled to view it. for additional thicknesses or custom sizes.

TERBIUM SPUTTERING TARGETS

Material

Purity

Terbium Sputtering Target 2"D X .125"T 3N
Terbium Sputtering Target 2"D X .250"T 3N
Terbium Sputtering Target 3"D X .125"T 3N
Terbium Sputtering Target 3"D X .250"T 3N
Terbium Sputtering Target 4"D X .125"T 3N
Terbium Sputtering Target 4"D X .250"T 3N

Targets are made to order and packaged individually. Call or This email address is being protected from spambots. You need JavaScript enabled to view it. for additional diameters, thicknesses or custom sizes.

TERBIUM POWDER, SHOT, PELLETS & INGOT

Material

Purity

Terbium Chips  camera1
3N
Terbium Ingot  camera1
3N
Terbium Powder -40 Mesh, Under Oil 3N
Terbium Powder -40 Mesh, Ampoules Under Dry Argon camera1 3N
Terbium Powder -40 Mesh, Cans Under Dry Argon  camera1  camera1
3N

Powder, shot, pellets, and ingots are packaged to order and sold by the gram or kilogram. Call or This email address is being protected from spambots. You need JavaScript enabled to view it. for additional specifications or custom requirements.

TERBIUM COMPOUNDS

Material

Purity

Terbium Chloride TbCl3-xH2O  -60 Mesh  3N
Terbium Chloride TbCl3  -60 Mesh  3N
Terbium Fluoride TbF3  1/4" to 1/8" Pieces  3N
Terbium Fluoride TbF3  -325 Mesh  3N
Terbium Oxide Tb4O7  -325 Mesh  3N, 5N
Terbium Oxide Tb4O7  1/2" to 1/8" Pieces  3N

Compounds are packaged to order and sold by the gram or kilogram. Call or This email address is being protected from spambots. You need JavaScript enabled to view it. for additional specifications or custom requirements.

 

Material Safety Data Sheet - MSDS
Terbium MSDS
Technical Data Sheets
Understanding Mesh Sizes