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Samarium

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Identification
Molecular formula
Sm
CAS number
7440-19-9
IUPAC name
samarium
State
State

At room temperature, samarium is a solid. It belongs to the lanthanide series of elements, often referred to as rare earth metals.

Melting point (Celsius)
1 072.00
Melting point (Kelvin)
1 345.00
Boiling point (Celsius)
1 794.00
Boiling point (Kelvin)
2 067.00
General information
Molecular weight
150.36g/mol
Molar mass
150.3600g/mol
Density
7.5200g/cm3
Appearence

Samarium is a bright silvery metal that is relatively hard and has a lustrous surface. However, it tarnishes readily in air, forming an oxide coating that can flake off as a powder. The metal is typically stored under a protective atmosphere or mineral oil to prevent oxidation.

Comment on solubility

Solubility of Samarium

Samarium (Sm), a rare earth element, has unique solubility properties that can vary significantly based on its chemical form and the medium in which it is dissolved. In general, samarium salts, such as samarium(III) chloride (SmCl3), exhibit high solubility in water.

Key Points About Samarium Solubility:

  • Salts: Samarium salts are often soluble in polar solvents, particularly water. For instance, samarium(III) nitrate (Sm(NO3)3) and samarium(III) sulfate (Sm24)3) are well-known soluble compounds.
  • Oxides: Less soluble than their salt counterparts, samarium oxides such as samarium(III) oxide (Sm2O3) show limited solubility in water.
  • Integration with Ligands: Samarium can form complexes with various ligands that can enhance or reduce its solubility depending on the nature of the ligand.

Overall, while samarium in its elemental form is not soluble, numerous compounds derived from samarium are readily soluble in aqueous solutions or organic solvents, highlighting the diversified chemistry this rare earth element presents. Understanding the solubility of samarium compounds can aid in their application in various chemical processes and materials science.

Interesting facts

Exploring Samarium: A Rare Earth Element

Samarium, denoted as Sm, is a fascinating member of the lanthanide series that offers a blend of intriguing properties and diverse applications. As a rare earth element, it plays a vital role in both scientific research and industrial processes.

Key Characteristics of Samarium

  • Magnetic Properties: Samarium is well-known for its exceptional magnetic properties, particularly in the form of samarium-cobalt magnets. These high-performance magnets are highly resistant to demagnetization and are used in various applications, including electric motors and hard disk drives.
  • Neutron Absorption: Samarium has a significant capacity for neutron absorption, making it beneficial in nuclear reactors where it is used as a neutron-capturing material. This property underlines its importance in the field of nuclear science.
  • Coloration in Glass: This element can impart a yellowish color to glass when used as a coloring agent. This unique aesthetic quality makes it a valuable additive in the glass and ceramics industry.
  • Laser Technology: Samarium is utilized in certain types of lasers, particularly in solid-state laser systems. Its ability to emit light in the visible spectrum under specific conditions makes it pivotal in photonics research.

Historical Significance

Discovered in 1853 by the French chemist Paul Émile Lecoq de Boisbaudran, samarium was named after the mineral samarskite, which in turn was named in honor of the Russian mine official, Vasily Samarsky-Bykhovets. This rich history adds an aspect of cultural significance to the element.

Impact on Modern Technology

The applications of samarium extend far beyond just its industrial uses; it plays a critical role in the advancement of technology and science. As technology continues to evolve, samarium's unique characteristics will likely lead to more innovative applications, making it an essential element in the fields of engineering and materials science.

In summary, samarium is not just another element, but a key player in various technological advancements and scientific applications, underscoring the importance of rare earth elements in our modern world.

Synonyms
SAMARIUM
7440-19-9
Samarium, elemental
SM
UNII-42OD65L39F
HSDB 7863
42OD65L39F
EINECS 231-128-7
DTXSID4064688
Samarium Metallicum
DTXCID6047652
EINECS (231-128-7)
231-128-7
samarium atom
samario
Samarium149
62Sm
MFCD00011233
SAMARIUM150
Samarium Standard: Sm @ 1000 microg/mL in 5% HNO3
Samarium Standard: Sm @ 10000 microg/mL in 5% HNO3
Samarium powder
Samarium ingot
Samarium Nanofoil
Samarium foil, 3N
Samarium ingot, 3N
Samarium pieces, 3N
SAMARIUM [MI]
Samarium chunks,99.9%
Samarium powder,99.9%
Samarium powder, -40 mesh
Ultra Thin Samarium Nanofoil
Samarium Metal Organic Framework
Samarium Metal-Organic Framework
1,2-Diacylglycerol-LD-SM-pool
CHEBI:33374
Samarium pieces, sublimed dendritic
AKOS024438061
DB12403
Samarium rod, 12.7mm (0.5in) dia
Samarium foil, 1.0mm (0.04in) thick
Samarium rod, 6.35mm (0.25in) dia
BP-21451
Samarium foil, 0.1mm (0.004in) thick
Samarium foil, 0.25mm (0.01in) thick
Samarium pieces, 12mm (0.47in) & down
Samarium foil, 0.62mm (0.024in) thick
Samarium powder (99.9% REO) 325 mesh
NS00082234
Q1819
Samarium foil, 0.025mm (0.001in) thick
Samarium foil, 0.127mm (0.005in) thick
D78246
Lanthanum Vanadium (LaVO3) Sputtering Targets
Samarium - Sm @ 1000 microg/mL in 5% HNO3
Samarium ingot/button, ca. 50.8mm (2.0in) dia
Samarium, rod, 100mm, diameter 6.35mm, cast, 99%
Samarium, rod, 50mm, diameter 6.35mm, cast, 99%
Samarium, foil, 25x25mm, thickness 0.1mm, as rolled, 99%
Samarium, foil, 50x50mm, thickness 0.1mm, as rolled, 99%
Samarium, foil, 50x50mm, thickness 0.25mm, as rolled, 99%
Samarium, foil, thickness 0.5 mm, 15 mm diameter, purity 99%
Samarium, foil, thickness 0.7 mm, 15 mm diameter, purity 99%
Samarium, lump, 25 mm max. lump size, weight 10 g, purity 99.9%
Samarium, lump, 25 mm max. lump size, weight 20 g, purity 99.9%
Samarium, lump, 25 mm max. lump size, weight 50 g, purity 99.9%
Samarium, foil, not light tested, 25x25mm, thickness 0.005mm, as rolled, 99%
Samarium, foil, not light tested, 25x25mm, thickness 0.025mm, as rolled, 99%
Samarium, foil, not light tested, 50x50mm, thickness 0.025mm, as rolled, 99%
Samarium, powder, 500 max. part. size (micron), weight 10 g, purity 99.9%
Samarium, powder, 500 max. part. size (micron), weight 20 g, purity 99.9%
Samarium, powder, max. particle size 500 micron, weight 50 g, purity 99.9%