• Terbium Metal (Tb) and Powder Synonyms:

Terbium metal, terbium powder, Tb, terbium lump, terbium pieces, terbium ingot, terbium foil, UN 1383, UN 3178, CAS# 7440-27-9,

• Terbium Metal (Tb) and Powder Designations:

Chemical Name: Terbium

Chemical Formula: Tb

• Terbium Metal (Tb) and Powder Description:

A member of the rare earth elements, terbium is a silvery-gray metal that is both malleable and ductile. It is soft and can be cut with a knife. Terbium is relatively stable in air, but it can be more reactive in certain forms, especially powder/ It is commonly used as a dopant in solid state devices and as an activator for green phosphors in color TV tubes.

• Terbium Metal (Tb) and Powder Chemical Properties Available:

99.9%, and 99.99%

• Terbium Metal (Tb) and Powder Physical Properties Available:

Powder, lump, pieces, and ingot

• Terbium Metal (Tb) and Powder Physical Constants:

Atomic Number	65
Molecular Weight (g/mol.)	158.924
Apparent Density (g/cm3)	8.27
Bulk Density (g/cm3)
Specific Heat @25°C (cal/g-°C)	.044
Melting Point (°C)	1356
Boiling Point (°C)	2800
Thermal Conductivity @20°C (cal/s-cm°C)
Mohs Hardness @20°C
Vickers Hardness   (MPa)	863
pH
Physical State	solid
Appearance	silver gray
Crystallography	hexagonal structure

• Terbium Metal (Tb) Typical Applications:

1. Terbium is used to dope 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, together with ZrO2.
2. Terbium is also used in alloys and in the production of electronic devices. As a component of Terfenol-D (an alloy that expands or contracts to a high degree in the presence of a magnetic field), terbium is of use in actuators, sensors and other magenetomechanical devices.
3. Terbium oxide is used in green phosphors in fluorescent lamps and color TV tubes. Sodium terbium borate is used in solid state devices. The brilliant fluorescence allows terbium to be used as a probe in biochemistry, where it somewhat resembles calcium in its behavior. Terbium "green" phosphors (which fluoresce a brilliant lemon-yellow) are combined with divalent Europium blue phosphors and trivalent europium red phosphors to provide the "trichromatic" lighting technology, which is by far the largest consumer of the world's terbium supply. Trichromatic lighting provides much higher light output for a given amount of electrical energy than does incandescent lighting. 

• Terbium Metal (Tb) and Powder Packaging Options:

Ampouled under argon, and packaged in air-stable poly bottle

• Terbium Metal (Tb) and Powder TSCA (SARA Title III) Status:

Listed. For further information please call the E.P.A. at +1.202.554.1404

• Terbium Metal (Tb) and Powder Chemical Abstract Service Number:

CAS# 7440-27-9

• Terbium Metal (Tb) and Powder UN Number:

1383 (powder) and 3178 (other)