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13400-13-0 - Cesium fluoride, 99.9% (metals basis) - 10019 - Alfa Aesar

10019 Cesium fluoride, 99.9% (metals basis)

CAS-Nummer
13400-13-0
Synonyme

Größe Preis ($) Menge Verfügbarkeit
2.5g 18,23
25g 79,56
100g 134,10
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Cesium fluoride, 99.9% (metals basis)

MDL
MFCD00010960
EINECS
236-487-3

Chemische Eigenschaften

Formel
CsF
Molmasse
151.90
Form
Powder/Lump
Schmelzpunkt
682°
Siedepunkt
1251°
Sensitivität
Hygroscopic
Löslichkeit
Soluble in water. Insoluble in dioxane and pyridine.

Anwendungen

Used for desilylation reactions in organic synthesis. Useful base in organic chemistry, due to its low nucleophilicity. Owing to its high ionic character, it is a very reactive source of fluoride ion in organic synthesis. Reagent of choice when reactive "naked" fluoride is required. Effective catalyst in promoting Knoevenegal condensation. Single crystals of CsF are useful as the windows of cells for infrared spectroscopy.

Bemerkungen

Cesium fluoride is hygroscopic. The adsorbed moisture can be removed by heating and drying under vacuum. Contact with acid should be avoided to prevent the formation of HF.

Literaturverweise

Khana, K. M.; Hayata, S.; Zia-Ullaha; Atta-ur-Rahmana; Iqbal Choudharya, I. M.; Maharvia, G. M.; Baye, E. An Alternative Method for the Synthesis of γ-Lactones by Using Cesium Fluoride-Celite/Acetonitrile Combination. Synth. Commun. 2003, 33 (19), 3435-3453.

Mee, S. P. H.; Lee, V.; Baldwin, J. E. Stille Coupling Made Easier - The Synergic Effect of Copper(I) Salts and the Fluoride Ion. Angew. Chem. Int. Ed. 2004, 43, 1132-1136.

Reinhard, M.; Hanisch, J.; Zhang, Z.; Ahlswede, E.; Colsmann, A.; Lemmer, U. Inverted organic solar cells comprising a solution-processed cesium fluoride interlayer. Appl. Phys. Lett. 2011, 98, 053303.

GHS Gefahren- und Sicherheitshinweise

Gefahrenhinweise (EU): H300-H310-H330-H314-H318

Fatal if swallowed. Fatal in contact with skin. Fatal if inhaled. Causes severe skin burns and eye damage. Causes serious eye damage.

Sicherheitshinweise: P260-P301+P310-P303+P361+P353-P304+P340-P305+P351+P338-P320-P330-P361-P405-P501a

Do not breathe dust/fume/gas/mist/vapours/spray. IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Specific treatment is urgent (see label). Rinse mouth. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Weitere Referenzen

Gefahrenklasse
8
Verpackungsgruppe
II
Harmonized Tariff Code
2826.19
TSCA
Yes
RTECS
FK9650000

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