Magnesium difluoride

Base Information

• Chemical Name: Magnesium difluoride
• CAS No.: 7783-40-6
• Molecular Formula: F₂Mg
• Molecular Weight: 62.3018
• Hs Code.: 28261900
• UNII: 5N014C7IWU
• DSSTox Substance ID: DTXSID7052523
• Nikkaji Number: J43.882K
• Wikidata: Q411752
• Mol file: 7783-40-6.mol

Synonyms:magnesium difluoride;Magnesium fluoride, powder;MAGNESIUM FLUORIDE [MI];DTXSID7052523;MAGNESIUM FLUORIDE [INCI];ORUIBWPALBXDOA-UHFFFAOYSA-L;MAGNESIUM FLUORIDE [MART.];AMY37017;MAGNESIUM FLUORIDE [WHO-DD];AKOS015833196;M3395;Q411752

Chemical Property of Magnesium difluoride

Chemical Property:

• Appearance/Colour: white to light beige powder
• Vapor Pressure: 922mmHg at 25°C
• Melting Point: 1248 °C
• Refractive Index: 1.365
• Boiling Point: 19.5 °C at 760 mmHg
• PSA: 0.00000
• Density: 3.15 g/mL at 25 °C(lit.)
• LogP: 0.84040
• Water Solubility.: 87 mg/L (18 ºC)
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 2
• Rotatable Bond Count: 0
• Exact Mass: 61.9818480
• Heavy Atom Count: 3
• Complexity: 0

Purity/Quality:

98.5% ^*data from raw suppliers

Magnesium fluoride ^*data from reagent suppliers

Safty Information:

• Pictogram(s): Xi
• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-36-37/39

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Canonical SMILES: [F-].[F-].[Mg+2]
• Description: Magnesium fluoride is a by-product of the manufacture of metallic beryllium and uranium. It is a fine white crystalline powder with low chemical reactivity. Magnesium fluoride is used as flux in magnesium metallurgy and in the ceramics industry. Magnesium fluoride may be used for the extraction of aluminum from arc-furnace alloys with Fe, Si, Ti, and C. Optical windows of highly purified magnesium fluoride which transmit light from the vacuum ultraviolet (140 nm) into the infrared (7) are recommended for use as ultraviolet optical components for the use in space exploration. Magnesium fluoride is can be also used as an antireflection coating material having a good antireflection effect and a low refractive index. Magnesium fluoride (MgF2) is a white crystalline salt. It is used in the electrolysis of aluminum ore to produce metallic aluminum and also as a reflective coating on various types of optical components. It is a tetragonal, birefringent crystal with the TiO2 type of structure.
• Uses: In Mg metallurgy and in the ceramics industry, Magnesium fluoride is used as a flux. Single crystals of alkaline-earth fluorides, such as Magnesium fluoride, are suitable for optical applications because of their large domain of transparency from the ultraviolet to the middle infrared region. Infrared transparent windows may be prepared by hot-pressing Magnesium fluoride powder. Ternary intercalation compounds of graphite with fluorine and Magnesium fluoride have been prepared; these compounds have high electrical conductivity and would therefore have an important potential as cathodes or new electroconductive materials. Finally, the eutectic NaF–MgF2 has been proposed in advanced latent-heat energy storage for solar power systems. Suitable for vacuum deposition. Magnesium fluoride occurs in nature as the mineral, sellaite. It is used in glass and ceramics. Single crystals are used for polarizing prisms and lenses. In the ceramics and glass industry.Magnesium Fluoride is a durable crystal with low absorption, suitable for high-powered laser, space, and other UV applications. MgF2 is also naturally birefringent, making it an ideal material for use where this property can be exploited, such as retardation plates and polarizing elements, particularly in the wavelength range from 0.13-0.30 μm. Magnesium fluoride (MgF2) is used to polarize corrective lenses of eyeglasses to reduce the glare of sunlight by selecting the orientation of the light waves passing through the lenses. MgF2 is also used to polarize windows, sunglasses, and similar optical items.

Technology Process of Magnesium difluoride

There total 93 articles about Magnesium difluoride which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 85.0%

methanol (67-56-1) + silicon tetrafluoride (7783-61-1) + magnesium (7439-95-4) → magnesium fluoride (7783-40-6) + tetramethylorthosilicate (681-84-5)

Guidance literature:

methanol; magnesium; With iodine; at 20 ℃; for 1.5h; Inert atmosphere; Reflux;

silicon tetrafluoride; Inert atmosphere;

at 300 ℃; for 2h; Reagent/catalyst; Temperature; Catalytic behavior; Calcination;

DOI:10.1080/10426507.2014.965812

Reference yield: 82.0%

ethanol (64-17-5) + silicon tetrafluoride (7783-61-1) + magnesium (7439-95-4) → magnesium fluoride (7783-40-6) + tetraethoxy orthosilicate (78-10-4)

Guidance literature:

ethanol; magnesium; With iodine; at 20 ℃; for 3.5h; Inert atmosphere; Reflux;

silicon tetrafluoride; for 2.5h; Inert atmosphere; Reflux;

at 300 ℃; for 2h; Reagent/catalyst; Temperature; Catalytic behavior; Calcination;

DOI:10.1080/10426507.2014.965812

Reference yield: 1.0%

magnesium orthovanadate + Dichlorodifluoromethane (75-71-8) → magnesium fluoride (7783-40-6) + magnesium divanadate (V) (13568-63-3) + carbon dioxide (124-38-9,18923-20-1) + vanadium(V) oxychloride (7727-18-6)

Guidance literature:

In neat (no solvent); using a fixed-bed flow reactor system at atmospheric pressure; placing of of Mg3(VO4)2 in quartz reactor; heating at 723 K under 1% CCl2F2/He atmosphere with total flow rate of 30 ml/min for 5 h; monitoring by XRD and GC-TCD;

DOI:10.1246/bcsj.78.1565

upstream raw materials:

chromium(III) fluoride

magnesium

sodium fluoride

carbon dioxide

Downstream raw materials:

lithium fluoride

Refernces

• 1、 C.Veitsch,Kubel,Hagemann. "Photoluminescence of nanocrystalline SrMgF4 prepared by a solution chemical route". . p. 168 - 175. Retrieved 2008.
• 2、 Noack, Johannes,Scholz, Gudrun,Rüdiger, Stephan,Feist, Michael,Kemnitz, Erhard. "The influence of HS-AlF3 on the decomposition reaction of MgH2". . p. 82 - 86. Retrieved 2009.
• 3、 Zieliński, Micha?,Kiderys, Angelika,Pietrowski, Mariusz,Tomska-Foralewska, Iwona,Wojciechowska, Maria. "Synthesis and characterization of new Mg-O-F system and its application as catalytic support". . p. 54 - 57. Retrieved 2016.
• 4、 Ma, Lai-Peng,Wang, Ping,Cheng, Hui-Ming. "Improving hydrogen sorption kinetics of MgH2 by mechanical milling with TiF3". . p. L1-L4. Retrieved 2007.
• 5、 Krishna Murthy,Gross, Udo,Ruediger, Stephan,Kemnitz, Erhard,Winfield, John M.. "Sol-gel-fluorination synthesis of amorphous magnesium fluoride". . p. 739 - 746. Retrieved 2006.
• 6、 Zieliński, Micha?,Wojciechowska, Maria. "Iridium supported on MgF2-MgO as catalyst for toluene hydrogenation". . p. 1 - 4. Retrieved 2012.
• 7、 Ayral,Rouessac,Massoni. "Combustion synthesis of silicon carbide assisted by a magnesium plus polytetrafluoroethylene mixture". . p. 2134 - 2138. Retrieved 2009.
• 8、 Li, Wei,Yang, Gang,Lu, Fengniu,Zhang, Xiaoling. "A novel vapor-phase catalytic synthetic approach for industrial production of 1,1,1,3,3,3-hexafluoroisopropyl methylether". . . Retrieved 2020/02/15.
• 9、 Yang, Kai-Li,Huang, Shan,Pan, Hu,Zhang, Heng,Liu, Xiao-Fang,Yang, Song. "Polyoxometalate-MgF2 hybrids as heterogeneous solid acid catalysts for efficient biodiesel production". . p. 33335 - 33343. Retrieved 2017/07/12.