Lithium Fluoride (LiF) is an inorganic compound composed of lithium and fluoride ions. It is a white, crystalline solid that is highly soluble in water and exhibits a number of interesting properties, making it useful in various industrial and scientific applications.
Formula: LiF
Molecular Weight: 25.93 g/mol
Purity: High-purity LiF (up to 99.99%) is often used in specialized applications, especially in optics, semiconductor manufacturing, and energy-related technologies.
Appearance：white powder or transparent crystals,hygroscopic
Density：2.635 g/cm3
Melting point：845 °C (1,553 °F; 1,118 K)
Boiling point：1,676 °C (3,049 °F; 1,949 K)
Solubility in water“0.127 g/100 mL (18 °C);0.134 g/100 mL (25 °C)
Solubility：soluble in HF;insoluble in alcohol
Magnetic susceptibility (χ)：−10.1·10−6 cm3/mol
Refractive index (nD)：1.3915
Crystal structure：Face-centered cubic
Ionic Bonding: Lithium fluoride is composed of lithium cations (Li⁺) and fluoride anions (F⁻), which form an ionic bond. This gives the compound a high melting point and stability.
Reactivity: LiF is chemically stable under most conditions. It is not reactive with water but may react with strong acids like hydrofluoric acid (HF) to release fluoride ions.
Electrical Insulator: Lithium Fluoride is an electrical insulator, making it useful in certain insulating applications in electronics.
Optical Coatings: Due to its UV transparency, lithium fluoride is used in the production of optical coatings, especially for UV lenses, windows, and other components.
Fluoride Glasses: Lithium Fluoride is used in the preparation of fluoride glasses, which are important in applications requiring transparency in the infrared and ultraviolet regions.
Nuclear Technology: Lithium Fluoride is utilized in nuclear reactors and fusion research as part of the molten salt reactor technology due to its high melting point and chemical stability.
Battery Technology: Lithium fluoride is explored in some advanced battery technologies, especially in solid-state lithium-ion batteries and lithium-sulfur (Li-S) batteries, for its ionic conductivity.
Semiconductors: LiF is used in some thin-film semiconductor applications and as a part of the dielectric materials in electronic devices.
Pharmaceuticals: It is sometimes used in the synthesis of certain pharmaceutical compounds.
Sputtering Targets: LiF is used as a sputtering target material for depositing thin films of lithium fluoride in various applications, including optical coatings and as part of solid-state electrolyte systems.
VI HALBLEITERMATERIAL GmbH (VIMATERIAL) employs a stringent quality assurance system to ensure the reliability of our product quality. Strict quality control is implemented throughout the entire production chain, and for defective products, we strictly enforce the principle of rework and redo. Each batch is released only after passing detailed specification tests.
Every batch of our materials is independently tested, and, if necessary, we send samples to certified companies for testing. We provide these documents and analysis certificates with the shipment to certify that our products meet the required standards.
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