Magnesium fluoride represented by the chemical formula MgF2 or F2Mg that bears the IUPAC name magnesium difluoride is a stable compound that is not hygroscopic as such and also slightly soluble in dilute acids (like nitric acid) however insoluble in alcohol. It is an ionic compound of magnesium and also fluorine and also non-polar in gaseous phase <1, 8>. In UV light it fluoresces purple <8>.

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Magnesium Fluoride

Magnesium Fluoride Identification

CAS Number7783-40-6 <1>
PubChem CID24546 <1>
ChemSpider ID22952 <2>
EC Number231-995-1 <3>

How to Make It

Magnesium fluoride is synthesized by a reactivity in between magnesium oxide and also ammonium bifluoride <8>.

MgO + (NH4)HF2 = MgF2 + NH3 + H2O


Magnesium Fluoride Formula

Properties and also Characteristics of Magnesium Fluoride

General Properties

Molar mass/molecular weight62.302 g/mol <1>

Physical Properties

Color/appearanceWhite crystals <3>
Melting point/freezing point1260°C, 2300°F <3>
Boiling point2260°C, 4100°F <3>
Density 3.2 g cm-3 <3>
State of issue at room temperature (normal phase)Solid <3>
Refrenergetic index1.4 <3>
Thermal conductivity28 W/m-K <3>
Hardness (Mohs scale)6 <10>
Specific warm capacity0.92 X 103 J/(kg.deg C) <10>

Chemical Properties

Solubility in waterNo <3>
pHN/A <11>

Atomic Properties

Crystal structureTetragonal <12>


Magnesium Fluoride Structure


Lewis Dot and Cross Diagram For Magnesium Fluoride

Magnesium Fluoride Uses

In anti-reflective, multi-layer optical coatings on glass <4>.As a sturdy product for lenses that deserve to be supplied in UV and also IR light eliminating birefringence <5>.MgF2 windows are extensively provided in the deep and also vacuum UV areas. They are durable and create minimal aberrations <9>.

Is It Dangerous

The compound deserve to be acutely toxic if swallowed. It is a cause of major eye, skin and respiratory tract irritation. So inhalation need to be avoided <7>.

Magnesium Fluoride (MgF2) Price

10 g of the inorganic compound powder costs about $15 <6>.


Copper II Sulfide

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