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Terbium

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Identification
Molecular formula
Tb
CAS number
7440-27-9
IUPAC name
terbium
State
State

At room temperature, terbium is a solid. It belongs to the lanthanide series of elements.

Melting point (Celsius)
1 359.00
Melting point (Kelvin)
1 632.00
Boiling point (Celsius)
3 230.00
Boiling point (Kelvin)
3 503.00
General information
Molecular weight
158.93g/mol
Molar mass
158.9250g/mol
Density
8.2300g/cm3
Appearence

Terbium is a silvery-white rare earth metal that is reasonably stable in air. It is soft enough to be cut with a knife and exhibits a bright metallic luster when freshly filed.

Comment on solubility

Solubility of Terbium Compounds

Terbium, represented by the symbol Tb, is a member of the rare earth elements and its compounds exhibit interesting solubility characteristics. When discussing the solubility of terbium compounds, it is crucial to consider the following:

  • Hydroxides: Terbium(III) hydroxide, Tb(OH)3, is generally insoluble in water, forming precipitates in aqueous solutions.
  • Nitrates: Terbium(III) nitrate, Tb(NO3)3, is soluble in water, making it suitable for various applications that require stable solutions.
  • Chlorides: Terbium(III) chloride, TbCl3, also displays good solubility in water, which is beneficial for synthesis processes.
  • Sulfates: Terbium(III) sulfate, Tb2(SO4)3, is known to be soluble in acidic conditions but may have limited solubility in neutral or basic solutions.

In general, the solubility of terbium compounds can be influenced by factors such as:

  1. pH of the solution: Acidic environments tend to enhance the solubility of many of its salts.
  2. Temperature: Increased temperatures may lead to greater solubility in some cases.
  3. Ionic strength: The presence of other ions can either promote or inhibit solubility.

Understanding these aspects of terbium solubility is vital for its effective use in various chemical and industrial applications. As with many rare earth elements, exploring their solubility profiles opens the door to innovative practical uses.

Interesting facts

Interesting Facts About Terbium

Terbium is a fascinating element with a rich history and a variety of applications. Here are some intriguing details about this rare earth element:

  • Symbol & Number: Terbium is represented by the symbol Tb and has the atomic number 65.
  • Discovery: Discovered in 1843 by Swedish chemist Johan Gadolin, terbium was named after the village of Ytterby in Sweden, where several rare earth elements were first isolated.
  • Source: Terbium is primarily obtained from minerals such as monazite and bastnäsite, making it a sought-after element in the field of rare earth mining.
  • Uses: Terbium is utilized in various high-tech applications, including:
    • Green phosphors in solid-state lighting and color television tubes.
    • Magnets, such as those in headphones and motor assemblies.
    • Neodymium magnets for electronic devices, improving efficiency.
  • Properties: This element is notable for its ability to absorb electromagnetic waves, specifically in the infrared range, which has led to its use in advanced electronics.
  • Rarity: Though not as rare as gold, terbium's distribution in the Earth's crust is relatively low, which makes it an important component in the growing field of sustainable technology.

Overall, terbium exemplifies the intersection of chemistry and modern technology. Its unique properties and applications make it a vital component in the quest for greener and more efficient energy solutions.

Synonyms
TERBIUM
7440-27-9
UNII-06SSF7P179
06SSF7P179
EINECS 231-137-6
TERBIUM, ELEMENTAL
TB
DTXSID3064691
Terbium Metallicum
DTXCID6047656
231-137-6
Terbium ingot
Terbium foil
MFCD00011256
Terbium ingot; Terbium foil;
terbium atom
Terbium Standard: Tb @ 1000 microg/mL in 5% HNO3
Terbium Standard: Tb @ 10000 microg/mL in 5% HNO3
terbio
Terbium chips
Terbium pieces
Terbium powder
Terbium Nanofoil
TERBIUM [MI]
65Tb
Terbium Standard: Tb @ 10 microg/mL in 2% HNO3
Terbium Metal-Organic Framework
CHEBI:33376
ICP-MS Internal Standard: Tb @ 100 ug/mL in 2% HNO3
Terbium Internal Standard: Tb @ 10 microg/mL in 2% HNO3
Terbium pieces, distilled dendritic
AKOS024257645
Terbium rod, 12.7mm (0.50in) dia
Terbium foil, 0.1mm (0.004in) thick
Terbium foil, 0.62mm (0.024in) thick
NS00082235
Q1838
Terbium, rod, 50mm, diameter 6.35mm, cast, 99%
Terbium, rod, 100mm, diameter 6.35mm, cast, 99%
Terbium sputtering target, 50.8mm dia x 1.59mm thick
Terbium sputtering target, 50.8mm dia x 3.18mm thick
Terbium sputtering target, 76.2mm dia x 1.59mm thick
Terbium, rod, 2.0 mm diameter, length 50 mm, purity 99%
Terbium, wire reel, 100mm, diameter 1.0mm, hard, 99.9%
Terbium, wire reel, 50mm, diameter 1.0mm, hard, 99.9%
Terbium, foil, 25x25mm, thickness 0.1mm, as rolled, 99%
Terbium, foil, 50x50mm, thickness 0.1mm, as rolled, 99%
Terbium, powder, 1g, max. particle size 500 micron, 99.9%
Terbium, powder, 2g, max. particle size 500 micron, 99.9%
Terbium, powder, 5g, max. particle size 500 micron, 99.9%
Terbium, lump, 25 mm max. lump size, weight 10 g, purity 99%
Terbium, lump, 25 mm max. lump size, weight 20 g, purity 99%
Terbium, lump, 25 mm max. lump size, weight 50 g, purity 99%
Terbium, foil, not light tested, 25x25mm, thickness 0.025mm, as rolled, 99%
Terbium, foil, not light tested, 50x50mm, thickness 0.025mm, as rolled, 99%