CAS number : 13400-13-0
Molecular weight :151.9
Molecular formula/chemical symbol :CsF
Description :
Keywords:Fluoride
Caesium fluoride (cesium fluoride in North America), is an inorganic compound usually encountered as a hygroscopic white solid. It is used in organic synthesis as a source of the fluoride anion. Caesium has the lowest electronegativity of all non-radioactive elements and fluorine has the highest electronegativity of all elements.
Caesium fluoride is prepared by the action of hydrofluoric acid on caesium hydroxide or caesium carbonate, followed by removal of water.
It is more soluble than sodium fluoride or potassium fluoride. It is available in anhydrous form, and if water has been absorbed it is easy to dry by heating at 100 °C for two hours in vacuo.
CsF reaches a vapor pressure of 1 kilopascal at 825 °C, 10 kPa at 999 °C, and 100 kPa at 1249 °C.
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Caesium fluoride |
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IUPAC name[hide] Caesium fluoride |
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Other names[hide] Cesium fluoride |
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Identifiers |
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24179 |
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FK9650000 |
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Jmol-3D images |
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Properties |
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CsF |
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151.90 g/mol |
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Appearance |
white crystalline solid |
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4.115 g/cm3 |
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682 °C (955 K) |
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1251 °C (1524 K) |
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Solubility in water |
367 g/100 ml (18 °C) |
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Structure |
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Fm3m, No. 225 |
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7.9 D |
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Hazards |
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EU Index |
Not listed |
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Non-flammable |
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Related compounds |
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Other anions |
Caesium chloride |
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Other cations |
Lithium fluoride |
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USES :
Analysis reagents and manufacturing of the optical crystal;
Keywords:Fine ceramics
Report :
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Product name |
Cesium |
CAS：7440-46-2 |
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Description |
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TEST ITEMS |
TEST RESULTS |
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Cs |
≥99.5% |
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Na |
≤0.1% |
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K |
≤0.1% |
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Rb |
≤0.2% |
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