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

10019 Cesium fluoride, 99.9% (metals basis)

Codice CAS
13400-13-0
Sinonimi

Dimensioni Prezzo ($) Quantità Disponibilità
2.5g 18,10
25g 87,50
100g 146,00
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Cesium fluoride, 99.9% (metals basis)

MDL
MFCD00010960
EINECS
236-487-3

Proprietà chimiche

Formula
CsF
Peso formula
151.90
Modulo
Powder/Lump
Punto di fusione
682°
Punto di ebollizione
1251°
Sensibilità
Hygroscopic
Solubilità
Soluble in water. Insoluble in dioxane and pyridine.

Applicazioni

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.

Note

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.

Letteratura

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.

Rischio GHS e dichiarazioni precauzionali

Dichiarazioni di rischio (UE): 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.

Dichiarazioni precauzionali: P301+P310a-P303+P361+P353-P304+P340-P305+P351+P338-P320-P405-P501a

IF SWALLOWED: Immediately call a POISON CENTER/doctor 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). Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Altri riferimenti

Classe di rischio
8
Gruppo di imballaggio
II
Codice tariffe armonizzato
2826.19
TSCA
Yes
RTECS
FK9650000

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