| Identification | More | [Name]
Caesium fluoride | [CAS]
13400-13-0 | [Synonyms]
CAESIUM FLUORIDE
CESIUM FLUORIDE
Cesium fluoride (Cs2F2)
Cesium fluoride (CsF)
Cesium monofluoride
cesiumfluoride(csf)
cesiummonofluoride
CsF
Dicesium difluoride
dicesiumdifluoride
Tricesium trifluoride
tricesiumtrifluoride
cesiumfluorid
Cesium fluoride (99.9% Cs)
Cesium fluoride (99+% Cs)
Caesium fluoride, anhydrous,
CESIUM FLUORIDE, CABOT TECHNICAL GRADE
Cesium fluoride, 99.99% metals basis
CESIUM FLUORIDE SIGMAULTRA
CESIUM FLUORIDE, CABOT HIGH-PURITY GRADE | [EINECS(EC#)]
236-487-3 | [Molecular Formula]
CsF | [MDL Number]
MFCD00010960 | [Molecular Weight]
151.9 | [MOL File]
13400-13-0.mol |
| Chemical Properties | Back Directory | [Appearance]
WHITE POWDER | [Melting point ]
682 °C(lit.)
| [Boiling point ]
1251 °C
| [density ]
4.115 g/mL at 25 °C(lit.)
| [vapor pressure ]
0Pa at 25℃ | [Fp ]
1251°C | [storage temp. ]
0-6°C | [solubility ]
H2O: 3 M at 20 °C, clear, colorless
| [form ]
Powder/Lump | [color ]
White | [Specific Gravity]
4.115 | [PH]
6.5-7.5 (25℃, 3M in H2O) | [Water Solubility ]
369 g/100 mL (18 ºC) | [Sensitive ]
Hygroscopic | [λmax]
λ: 260 nm Amax: 0.05
λ: 280 nm Amax: 0.05 | [Merck ]
14,2012 | [Exposure limits]
ACGIH: TWA 2.5 mg/m3
NIOSH: IDLH 250 mg/m3; TWA 2.5 mg/m3 | [Stability:]
hygroscopic | [InChIKey]
XJHCXCQVJFPJIK-UHFFFAOYSA-M | [LogP]
0.23 at 20℃ | [CAS DataBase Reference]
13400-13-0(CAS DataBase Reference) | [NIST Chemistry Reference]
Cesium fluoride(13400-13-0) | [EPA Substance Registry System]
13400-13-0(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
T,C | [Risk Statements ]
R23/24/25:Toxic by inhalation, in contact with skin and if swallowed .
R34:Causes burns. | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) . | [RIDADR ]
UN 2923 8/PG 2
| [WGK Germany ]
3
| [RTECS ]
FK9650000
| [F ]
3-10 | [Hazard Note ]
Corrosive | [TSCA ]
T | [HazardClass ]
6.1 | [PackingGroup ]
III | [HS Code ]
28261990 | [Safety Profile]
A poison. Incompatible
with benzenediazonium tetrafluoroborate
and difluoroamine. When heated to
decomposition it emits toxic fumes of F-. |
| Hazard Information | Back Directory | [Hazard]
A poison. | [Chemical Properties]
white crystalline powder | [Uses]
A preperation of building block for synthesis of fluoroallylic compounds. | [Uses]
Catalyst in oxidation reactions; as a solid base when adsorbed onto Celite, q.v. Fluoride source in organic synthesis. Inorganic scintillator. | [Uses]
Used as a base in a Suzuki cross-coupling synthesis of ortho-substituted biaryls.5 Also employed as a reagent for nucleophilic fluorination of primary halides and sulfonates in protic media such as tert-butyl and tert-pentyl alcohols.6 | [General Description]
Cesium fluoride is an inorganic compound known to be a source of fluoride ion and a catalyst in organic synthesis. It has been used in many organic reactions like 1,4?elimination, desilylation, transesterification, acylation, nucleophilic aromatic substitution, etherification, cross?coupling reactions and so on. | [Flammability and Explosibility]
Notclassified | [Purification Methods]
Crystallise it from aqueous solution by adding ethanol. |
| Questions And Answer | Back Directory | [Description]
Caesium fluoride can be used as an analytical reagent, and also for the manufacture of optical crystals
It can be used for the preparation of fluorinated isocyanate.
During the Suzuki cross-coupling synthesis reaction, it can be used as a base for the positive substitution of the biaryls compound; it can also be used as a nucleophile for the fluorination of protic mediate such as the halide and sulfonate contained in tert-butyl alcohol or t-amyl alocohol. It can also be used as catalyst for the Silyl enol ether reaction of carbonyl compounds; used for efficient synthesis of single crystal Dion-Jacobson phase CsLaTa2O7 tto be applied to photocatalytic and superconductivity. |
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