Samarium (III) Fluoride (SmF3)

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Samarium (III) Fluoride (SmF3)

Categories Rare earth, Samarium

Additional information

Item Number	FL62
Product Name	Samarium Fluoride (SmF3)
CAS Number	113765-24-7
M. F.	SmF3
Purity	99.99%; 99.999% (REO)
Form*	P

Description:

Samarium(III) Fluoride (SmF₃) is an inorganic compound composed of samarium (Sm) and fluorine (F). It is a white or pale yellow crystalline powder that is insoluble in water but dissolves in strong acids. SmF₃ is primarily used in optics, metallurgy, electronics, and nuclear applications due to its unique electrical, optical, and magnetic properties.

Key Properties：

Chemical Formula: SmF₃
Molecular Weight: 207.35 g/mol
Appearance: White to pale yellow crystalline powder
Density: 6.7 g/cm³
Melting Point: ~1,306°C (2,383°F)
Boiling Point: Sublimates at high temperatures
Solubility:Insoluble in water/Soluble in strong acids (e.g., hydrochloric acid, nitric acid)
Crystal Structure: Orthorhombic

Applications:

Metallurgy & Magnet Production

Used as a precursor in the electrolytic production of samarium metal, which is crucial in high-performance Sm-Co (samarium-cobalt) permanent magnets.
Sm-Co magnets are used in aerospace, defense, electric motors, and high-temperature applications where NdFeB magnets may fail.

Optical Coatings & Glass Manufacturing

Enhances the optical properties of specialty glass and laser materials.
Used in infrared-transmitting glass, UV-blocking coatings, and optical fibers.

Electronics & Phosphors

Used in the production of phosphors for fluorescent lamps, LED displays, and X-ray screens.
Plays a role in dielectric materials for electronic components such as capacitors.

Nuclear Applications

SmF₃ is used in nuclear reactor control rods due to samarium’s ability to absorb neutrons, helping regulate nuclear fission reactions.

Catalysis & Chemical Processing

Functions as a catalyst in various chemical reactions, including polymerization and organic synthesis.

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