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Magnesium Fluoride

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Identification
Molecular formula
MgF2
CAS number
7783-40-6
IUPAC name
magnesium;difluoride
State
State

At room temperature, magnesium fluoride is found in a solid state, typically forming transparent to translucent crystals.

Melting point (Celsius)
1 255.00
Melting point (Kelvin)
1 528.00
Boiling point (Celsius)
2 260.00
Boiling point (Kelvin)
2 533.00
General information
Molecular weight
62.32g/mol
Molar mass
62.3210g/mol
Density
3.1500g/cm3
Appearence

Magnesium fluoride usually appears as a white crystalline powder or as transparent to translucent crystals. It is known for being optically transparent over a wide range of wavelengths and is used in optical applications for this reason.

Comment on solubility

Solubility of Magnesium Difluoride

Magnesium difluoride (MgF2) exhibits interesting solubility characteristics that are affected by various factors. It is generally considered to be:

  • Low solubility in water: MgF2 has a very low solubility product constant (Ksp), meaning that only a small amount of this compound dissolves in water.
  • Soluble in acidic environments: The solubility increases when the pH is lowered due to the presence of acids, which can help to dissociate the fluoride ions.
  • Temperature influence: Higher temperatures can also enhance solubility, though MgF2 remains relatively insoluble compared to other fluoride salts.

This low solubility can be attributed to the strong ionic bonds present in the crystal lattice of magnesium difluoride, making it less likely to break apart and dissolve in aqueous solutions. Interestingly, as stated, "The solubility behavior is highly dependent on environmental conditions"—particularly pH and temperature—so it is crucial to consider these factors when predicting the behavior of MgF2 in various chemical contexts.

Overall, while magnesium difluoride does possess some solubility, it remains fundamentally challenging to work with in standard aqueous conditions.

Interesting facts

Interesting Facts About Magnesium Difluoride

Magnesium difluoride (MgF2) is a fascinating compound with several remarkable characteristics that make it stand out in the world of chemistry. Here are some intriguing facts:

  • Versatile Applications: Magnesium difluoride is commonly used in various applications, including:
    • Optical Coatings: Due to its transparent nature in the ultraviolet and visible ranges, MgF2 is widely used as an anti-reflective coating on lenses and prisms.
    • Fluorine Source: It serves as a source of fluorine in chemical reactions and is often utilized in the synthesis of other fluoride compounds.
    • Electronics: The compound is experiencing increasing interest in the electronic industry for its potential use in thin-film applications.
  • Natural Occurrence: Interestingly, magnesium difluoride is found in nature as the rare mineral falklandsis. Its natural presence highlights its importance in geological processes.
  • Tough and Resilient: Magnesium difluoride has impressive mechanical properties, making it resistant to various environmental conditions. This durability contributes to its usage in demanding applications.
  • Interactions with Light: The compound has unique optical properties, enabling it to have low refractive indices. This characteristic is essential in designing optics for advanced imaging systems.
  • Importance in Chemistry Education: MgF2 is often used in educational settings to demonstrate concepts of ionic compounds and crystal lattice structures, providing students with a hands-on experience in solid-state chemistry.

As a scientist or chemistry student, exploring the properties and applications of magnesium difluoride can lead to exciting discoveries and innovations in both industrial and academic fields. Its multifaceted nature embodies the intricacies of chemical science.

Synonyms
Afluon
Irtran 1
Magnesium fluorure
EINECS 231-995-1
UNII-5N014C7IWU
5N014C7IWU
Magnesia Fluorata
231-995-1
58790-41-3
7783-40-6
magnesium fluoride
magnesium fluoride (mart.)
Sellaite
magnesium;difluoride
MFCD00011108
Magnesium fluoride (MgF2)
Magnesium fluorure [French]
Magnesium fluoride, 99%
Magnesium fluoride, anhydrous
Magnesium Fluoride Micropowder
Magnesium fluoride, Optical Grade
Magnesium fluoride, technical grade
AKOS015902449
Magnesium fluoride, for glass industry
HY-W019922
Magnesium fluoride crystals, optical grade
Magnesium fluoride sol, 0.4 M in ethanol
CS-0031731
Magnesium fluoride, 99.99% (metals basis)
Aluminum Doped Zinc Oxide (AZO) Sputtering Targets
Magnesium fluoride, pieces, 3-6 mm, 99.9% trace metals basis (excluding Na)
Magnesium fluoride, random crystals, optical grade, >=99.99% trace metals basis