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Magnesium fluoride

CAS No.:7783-40-6
Product Grade: Industrial Grade
Purity / Assay: ≥99.5%
Molecular Formula:MgF₂
Molecular Weight:62.302 g/mol
Synonym(s):Magnesium fluoride, MgF2, Sellaite, Magnesium difluoride

Magnesium fluoride, identified by CAS number 7783-40-6, is an inorganic compound appearing as a white, crystalline powder or as transparent crystals. This salt is characterized by its exceptional physical and chemical stability, remaining insoluble in water and most organic solvents while showing slight solubility in dilute acids. Its crystal structure is typically tetragonal, similar to rutile, which contributes to its mechanical durability and resistance to thermal shock, making it a reliable material for demanding industrial environments.

In research and manufacturing, magnesium fluoride is valued primarily for its unique optical properties, specifically its low refractive index and broad transmission range extending from the vacuum ultraviolet to the infrared spectrum. Because it is chemically inert and possesses a high melting point, it serves as a critical component in high-performance coatings and specialized glass formulations. Proper handling is required to manage its fine particulate form, though it remains a staple material in advanced material science and vacuum-based processing.

• In the field of precision optics, magnesium fluoride is extensively utilized as a thin-film coating material for lenses and windows. Due to its low refractive index, it acts as an effective anti-reflective layer, enhancing light transmission and reducing glare in cameras, telescopes, and binocular systems. Its durability ensures that these coatings withstand environmental exposure without degrading performance.

• The material is a primary choice for components in ultraviolet and infrared technology, such as VUV windows, prisms, and filters. Its ability to transmit light in the deep ultraviolet range makes it indispensable for excimer laser optics and specialized sensors used in aerospace and laboratory research where other optical materials might fail or absorb radiation.

• Within the metallurgical industry, magnesium fluoride serves as a fluxing agent in the smelting and refining of magnesium metal and its alloys. It helps to lower the melting point and improve the flow of the melt. Additionally, it is incorporated into ceramic glazes and glass-ceramic composites to modify thermal expansion coefficients and enhance the mechanical strength of the final product.

• It plays a significant role in the electrolytic production of aluminum, where it is added to the electrolyte bath to adjust conductivity and temperature. Furthermore, it is used as a catalyst or catalyst support in various chemical synthesis processes, benefiting from its high surface area and chemical robustness in acidic or high-temperature reaction environments.

25 kg/drum, 25 kg/bag, 180 kg/drum
CAS No.: 7783-40-6

Product Name: Magnesium fluoride

Purity / Assay:≥99.5%
Molecular Formula:MgF₂
Molecular Weight:62.302 g/mol
EINECS No.:231-995-1
Synonym(s):Magnesium fluoride, MgF2, Sellaite, Magnesium difluoride

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