| Identification | More | [Name]
TERBIUM | [CAS]
7440-27-9 | [Synonyms]
TERBIUM
TB007910
TB000210
TB006010
TB000200
TB005110
Terbium-159
Terbium Foil
terbium atom
TERBIUM METAL
Terbiummetall
TERBIUM, LUMP
Terbium, Chips
Terbium, ingot
Terbium powder
Terbium Pieces
METHYL RED TS 2
TERBIUM STANDARD
Terbium,99.9%,chip
Terbium,99.9%,ingot
Terbium foil50x50mm
Terbium foil25x25mm
Terbium, Chips 99.9%
TERBIUM ICP STANDARD
TERBIUM, CHIP, 99.9%
Tb Standard Solution
Terbium, chip, 99.90%
TerbiumpowderNREOmesh
Terbium, ingot, 99.9%
LETHEEN BROTH 20X10ML
TERBIUM, 99.90%, INGOT
Terbium, ingot, 99.90%
TERBIUM POWDER 99.9%
Terbiumpowder(99.9%REO)
TerbiumTerbium Standard
Terbium, Powder 40 Mesh
Terbium foil (99.9% REO)
Terbium ingot (99.9% REO)
TerbiumchipsNREOmmanddown
Terbium chips (99.9% REO)
TerbiumingotNREOmetalpiece
TERBIUM ISO 9001：2015 REACH
TerbiumfoilNREOmmthickcagxmm
Terbium, Powder 40 Mesh 99.9%
TERBIUM, AAS STANDARD SOLUTION
TERBIUM SINGLE ELEMENT STANDARD
Terbiumingot,99.9%(REO),Ta<0.2%
TERBIUM PLASMA EMISSION STANDARD
TERBIUM, PLASMA STANDARD SOLUTION
TERBIUM ATOMIC ABSORPTION STANDARD
Terbium pieces, Distilled dendritic
Terbium foil, 0.25mm (0.01 in.) thick
Terbium powder, -40 mesh, 99.9% (REO)
Terbium foil, 0.62mm (0.024 in.) thick
Terbium foil, 0.127mm (0.005 in.) thick
TERBIUM ICP STANDARD TRACEABLE TO SRM FR
TERBIUM ATOMIC ABSORPTION STANDARD SOLUTION
Terbium, Rare Earth Oxides Content, Ta <0.2%
Terbium, AAS standard solution, Tb 1000μg/mL
Terbium, plasma standard solution, Tb 10μg/mL
TERBIUM PLASMA EMISSION SPECTROSCOPY STANDARD
Terbium plasma standard solution, Tb 10000μg/mL
Silicon Aluminum (Si-Al) Alloy Sputtering Targets
Terbium sputtering target, 76.mm dia x 1.59mm thick
Terbium sputtering target, 76.mm dia x 3.18mm thick
Terbium pieces, 99.9% trace rare earth metals basis
TerbiuM sputtering target, 76.2MM dia x 3.18MM thick
TerbiuM sputtering target, 76.2MM dia x 1.59MM thick
Terbium sputtering target, 50.8mm dia x 1.59mm thick
Terbium sputtering target, 50.8mm dia x 3.18mm thick
Terbium, plasma standard solution, Specpure, Tb 10g/ml
Terbium, AAS standard solution, Specpure(R), Tb 1000μg/ml
Terbium, plasma standard solution, Specpure(R), Tb 1000μg/ml
Terbium powder, -40 mesh, 99.9% trace rare earth metals basis
Terbium, plasma standard solution, Specpure(R), Tb 10,000μg/ml
Terbium pieces, distilled dendritic, 99.9% trace rare earth metals basis | [EINECS(EC#)]
231-137-6 | [Molecular Formula]
Tb | [MDL Number]
MFCD00011256 | [Molecular Weight]
158.93 | [MOL File]
7440-27-9.mol |
| Chemical Properties | Back Directory | [Definition]
Atomic number 65, group IIIB of
the periodic table, a rare-earth element of the yttrium subgroup (lanthanide series), aw 158.9254,
valences of 3, 4; no stable isotopes. | [Appearance]
silvery-white chip or ingot, or grey powder | [Melting point ]
1356 °C (lit.) | [Boiling point ]
3230 °C (lit.) | [density ]
8.234 g/mL at 25 °C(lit.)
| [form ]
powder
| [color ]
Silver-gray | [Specific Gravity]
8.234 | [Stability:]
Stable, but moisture sensitive. Reacts with halogens, strong acids. The powder is highly flammable. | [Resistivity]
116 μΩ-cm, 20°C | [Water Solubility ]
Insoluble in water. | [Sensitive ]
Air & Moisture Sensitive | [Merck ]
13,9232 | [Exposure limits]
ACGIH: TWA 2 ppm; STEL 4 ppm
OSHA: TWA 2 ppm(5 mg/m3)
NIOSH: IDLH 25 ppm; TWA 2 ppm(5 mg/m3); STEL 4 ppm(10 mg/m3) | [History]
Discovered by Mosander in 1843. Terbium is a member of
the lanthanide or “rare earth” group of elements. It is found
in cerite, gadolinite, and other minerals along with other rare
earths. It is recovered commercially from monazite in which
it is present to the extent of 0.03%, from xenotime, and from
euxenite, a complex oxide containing 1% or more of terbia.
Terbium has been isolated only in recent years with the development
of ion-exchange techniques for separating the rareearth
elements. As with other rare earths, it can be produced
by reducing the anhydrous chloride or fluoride with calcium
metal in a tantalum crucible. Calcium and tantalum impurities
can be removed by vacuum remelting. Other methods of
isolation are possible. Terbium is reasonably stable in air. It is a silver-gray metal, and is malleable, ductile, and soft enough
to be cut with a knife. Two crystal modifications exist, with
a transformation temperature of 1289°C. Forty-two isotopes
and isomers are recognized. The oxide is a chocolate or dark
maroon color. Sodium terbium borate is used as a laser material
and emits coherent light at 0.546 μm. Terbium is used
to dope calcium fluoride, calcium tungstate, and strontium
molybdate, used in solid-state devices. The oxide has potential
application as an activator for green phosphors used in
color TV tubes. It can be used with ZrO2 as a crystal stabilizer
of fuel cells that operate at elevated temperature. Few other
uses have been found. The element is priced at about $40/g
(99.9%). Little is known of the toxicity of terbium. It should be
handled with care as with other lanthanide elements. | [Uses]
Phosphor activator, dope for solid-state devices. | [CAS DataBase Reference]
7440-27-9(CAS DataBase Reference) | [EPA Substance Registry System]
Terbium (7440-27-9) |
| Safety Data | Back Directory | [Hazard Codes ]
F,T | [Risk Statements ]
R11:Highly Flammable.
R34:Causes burns.
R23/24/25:Toxic by inhalation, in contact with skin and if swallowed . | [Safety Statements ]
S22:Do not breathe dust .
S24/25:Avoid contact with skin and eyes .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S33:Take precautionary measures against static discharges .
S16:Keep away from sources of ignition-No smoking .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S28:After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer) .
S27:Take off immediately all contaminated clothing .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice . | [RIDADR ]
UN 3089 4.1/PG 2
| [WGK Germany ]
3
| [TSCA ]
Yes | [HazardClass ]
8 | [PackingGroup ]
III | [HS Code ]
28053013 |
| Hazard Information | Back Directory | [Chemical Properties]
silvery-white chip or ingot, or grey powder | [Physical properties]
There are two allotropic (crystal forms) of terbium, both of which are dependent on itstemperature. The alpha ((α) form exists at room temperatures and up to temperatures of1,298°C, and the beta (β) form exists beyond these temperatures. Although terbium is a silverymetal that resembles aluminum and feels like lead, it is much heavier than either of thesetwo elements. It is placed in the yttrium subgroup (lanthanide series) of the rare-earths. It isalso resistant to corrosion.
Its melting point is 1,356.9°C, its boiling point is 3,230°C, and its density is 8.23g/cm3. | [Isotopes]
There are a total of 52 isotopes of terbium, and only one of these is stable (Tb-159). Terbium-59 makes up 100% of the element found in the Earth’s crust. | [Origin of Name]
Named for a village in Sweden. | [Occurrence]
Of all the 17 rare-earths in the lanthanide series, terbium is number 14 in abundance.Terbium can be separated from the minerals xenotime (YPO4) and euxenite, a mixture of thefollowing: (Y, Ca, Er, La, Ce, Y, Th)(Nb, Ta, Ti2O6). It is obtained in commercial amountfrom monazite sand by the ion-exchange process. Monazite may contain as much as 50%rare-earth elements, and about 0.03% of this is terbium. | [Characteristics]
Terbium is not found in great quantities on Earth. In fact, minerals where terbium is foundcontain about 0.03% terbium. Not much of the stable isotope is found as a free metal; rathermost of it is mixed with other rare-earths or are in compound forms. | [Preparation]
Terbium is recovered from the minerals, monazite, xenotime, and euxenite. The recovery processes are quite similar to those of other lanthanide elements (See individual lanthanide elements). The metal is separated from other rareearths by ion exchange methods, which are relatively easy and faster than fractional crystallization techniques.
Terbium metal is obtained from its anhydrous trifluoride, TbF3, or trichloride, TbCl3, by thermal reduction with calcium, carried out in a tantalum crucible. Terbium produced by such methods may contain traces of calcium and tantalum. High purity metal can be prepared by various methods such as vacuum remelting, distillation, amalgam formation, floating zone melting, and various chemical processes. | [Hazard]
The halogens (group VIIA) of terbium are strong irritants. Most of the compounds aretoxic and some are explosive. A vacuum or inert atmosphere must be maintained when workingwith the metal because of its strong oxidation properties. | [Flammability and Explosibility]
Flammable |
| Questions And Answer | Back Directory | [Uses]
Terbium is primarily used in phosphors, particularly in fluorescent lamps and as the high intensity green emitter used in projection televisions, such as the Yttrium-Aluminum-Garnet (Tb:YAG) variety.
Terbium responds efficiently to x-ray excitation and is, therefore, used as an x-ray phosphor.
Terbium compounds are useful biological probes due to the long emission lifetime of terbium.
Terbium alloys are also used in magneto-optic recording films, such as TbFeCo.
Terbium is also used in alloys and in the production of electronic devices. As a component of Terfenol-D, Terbium is of use in actuators, in naval sonar systems, sensors, in the SoundBug device (its first commercial application), and other magnetomechanical devices.
Terbium Metal is the important additive for NdFeB permanent magnets to raise the Curie temperature and improve temperature coefficiency. Another most promising use of distilled Terbium Metal, code 6563D, is in the magnetostrictive alloy TEFENOL-D. There are also other applications for some special master alloys. Terbium Metal can be further processed to various shapes of ingots, pieces, wires, foils, slabs, rods, discs and powder.
 |
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| Company Name: |
Alfa Aesar
|
| Tel: |
400-6106006 |
| Website: |
http://chemicals.thermofisher.cn |
| Company Name: |
Energy Chemical
|
| Tel: |
021-021-58432009 400-005-6266 |
| Website: |
http://www.energy-chemical.com |
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