Magnesium fluoride

Magnesium fluoride[1]
Magnesium fluoride
Names
Other names
Sellaite
Irtran-1
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.029.086 Edit this at Wikidata
EC Number
  • 231-995-1
RTECS number
  • OM3325000
UNII
  • InChI=1S/2FH.Mg/h2*1H;/q;;+2/p-2 checkY
    Key: ORUIBWPALBXDOA-UHFFFAOYSA-L checkY
  • InChI=1/2FH.Mg/h2*1H;/q;;+2/p-2
    Key: ORUIBWPALBXDOA-NUQVWONBAK
  • F[Mg]F
  • [Mg+2].[F-].[F-]
Properties
MgF2
Molar mass 62.3018 g/mol
Appearance Colorless to 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)
5.16⋅10−11
Solubility
−22.7⋅10−6 cm3/mol
1.37397
Structure
Rutile (tetragonal), tP6
P42/mnm, No. 136
Thermochemistry
61.6 J/(mol⋅K)
57.2 J/(mol⋅K)
−1124.2 kJ/mol
−1071 kJ/mol
Hazards[2][3]
GHS labelling:
Irritant
Warning
H303, H315, H319, H335
P261, P304+P340, P305+P351+P338, P405
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 3: Short exposure could cause serious temporary or residual injury. E.g. chlorine gasFlammability 0: Will not burn. E.g. waterInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
3
0
0
Lethal dose or concentration (LD, LC):
2330[clarification needed] (rat, oral)
Safety data sheet (SDS) ChemicalBook
Related compounds
Other anions
Other cations
Related compounds
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Magnesium fluoride is an ionically bonded inorganic compound with the formula MgF2. The compound is a colorless to 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.

  1. ^ W.M. Haynes, ed. (2016), "Physical Constants of Inorganic Compounds", Handbook of Chemistry and Physics (97th ed.), CRC Press, pp. 4–71 (789), ISBN 978-1-4987-5429-3
  2. ^ "Magnesium Fluoride Material Safety Data Sheet". Science Labs. May 21, 2013. Retrieved October 13, 2017.
  3. ^ "Magnesium fluoride". CAS DataBase List. ChemicalBook. Retrieved October 13, 2017.