- Strontium fluoride
] Another proposal is that polarisation of the electron core of the barium atom creates an approximately tetrahedral distribution of charge that interacts with the Sr-F bonds. [Core Distortions and Geometries of the Difluorides and Dihydrides of Ca, Sr, and Ba Bytheway I, Gillespie RJ, Tang TH, Bader RF Inorganic Chemistry, Vol.34, No.9, 2407-2414, 1995 doi|10.1021/ic00113a023]
Properties
It is almost insoluble in water (its Ksp value is approximately 4.33x10-9 at 25 degrees Celsius.
It irritates eyes and skin, and is harmful when inhaled or ingested.
Similar to CaF2 and BaF2, SrF2 displayssuperionic conductivity at elevated temperatures. [http://www.newmet.co.uk/Products/koch/strontium.php http://www.newmet.co.uk/Products/koch/strontium.php] ]
Strontium fluoride is transparent to light in the wavelengths fromvacuum ultraviolet (150 nm) toinfrared (11 µm). Its optical properties are intermediate tocalcium fluoride andbarium fluoride . [http://www.crystran.co.uk/products.asp?productid=155 http://www.crystran.co.uk/products.asp?productid=155] ]Uses
Strontium fluoride is used as an
optical material for a small range of special applications, for example, as anoptical coating on lenses and also as a thermoluminescentdosimeter crystal.Another use is as a carrier ofstrontium-90 radioisotope inradioisotope thermoelectric generator s.References
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