Magnesium fluoride
Chemical compound of magnesium and fluorine / From Wikipedia, the free encyclopedia
Dear Wikiwand AI, let's keep it short by simply answering these key questions:
Can you list the top facts and stats about Magnesium fluoride?
Summarize this article for a 10 year old
SHOW ALL QUESTIONS
Magnesium fluoride is an ionically bonded inorganic compound with the formula MgF2. The compound is a white crystalline salt and is transparent over a wide range of wavelengths, with commercial uses in optics that are also used in space telescopes. It occurs naturally as the rare mineral sellaite.
Quick Facts Names, Identifiers ...
Names | |
---|---|
Other names
Sellaite Irtran-1 | |
Identifiers | |
3D model (JSmol) |
|
ChemSpider |
|
ECHA InfoCard | 100.029.086 |
EC Number |
|
PubChem CID |
|
RTECS number |
|
UNII | |
CompTox Dashboard (EPA) |
|
| |
| |
Properties | |
MgF2 | |
Molar mass | 62.3018 g/mol |
Appearance | White tetragonal crystals |
Density | 3.148 g/cm3 |
Melting point | 1,263 °C (2,305 °F; 1,536 K) |
Boiling point | 2,260 °C (4,100 °F; 2,530 K) |
0.013 g/(100 mL) | |
Solubility product (Ksp) |
5.16⋅10−11 |
Solubility |
|
−22.7⋅10−6 cm3/mol | |
Refractive index (nD) |
1.37397 |
Structure | |
Rutile (tetragonal), tP6 | |
P42/mnm, No. 136 | |
Thermochemistry | |
Heat capacity (C) |
61.6 J⋅mol−1⋅K−1 |
Std molar entropy (S⦵298) |
57.2 J⋅mol−1⋅K−1 |
Std enthalpy of formation (ΔfH⦵298) |
−1124.2 kJ⋅mol−1 |
Gibbs free energy (ΔfG⦵) |
−1071 kJ/mol |
Hazards[2][3] | |
GHS labelling: | |
Warning | |
H303, H315, H319, H335 | |
P261, P304+P340, P305+P351+P338, P405 | |
NFPA 704 (fire diamond) | |
Lethal dose or concentration (LD, LC): | |
LD50 (median dose) |
2330[clarification needed] (rat, oral) |
Safety data sheet (SDS) | ChemicalBook |
Related compounds | |
Other anions |
|
Other cations |
|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
|
Close