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About This Item
Empirical Formula (Hill Notation):
CsF
CAS Number:
Molecular Weight:
151.90
NACRES:
NA.22
PubChem Substance ID:
UNSPSC Code:
12352302
EC Number:
236-487-3
MDL number:
Assay:
≥98.0%
grade
purum p.a.
Quality Level
assay
≥98.0%
reaction suitability
core: Cesium
mp
682 °C (lit.)
density
4.115 g/mL at 25 °C (lit.)
anion traces
chloride (Cl-): ≤1000 mg/kg, sulfate (SO42-): ≤500 mg/kg
cation traces
Ca: ≤50 mg/kg, Cd: ≤50 mg/kg, Co: ≤50 mg/kg, Cu: ≤50 mg/kg, Fe: ≤50 mg/kg, K: ≤300 mg/kg, Na: ≤100 mg/kg, Ni: ≤50 mg/kg, Pb: ≤50 mg/kg, Zn: ≤50 mg/kg
SMILES string
[F-].[Cs+]
InChI
1S/Cs.FH/h;1H/q+1;/p-1
InChI key
XJHCXCQVJFPJIK-UHFFFAOYSA-M
Application
Catalyst for the reaction of silyl enol ethers with carbonyl compounds.
Reactant for:
- Preparation of building blocks for synthesis of fluoroallylic compounds
- Synthesis of alcohols via hydrolysis of alkyl silyl ethers at neutral pH in buffered mixed organic-aqueous solutions
- Nucleophilic fluorination of alkynyliodonium salts to form fluorovinylic compounds
- Nucleophilic aromatic substitution (SNAr) reactions
Used in the successful synthesis of a single-crystal Dion-Jacobson phase, CsLaTa2O7, that has applications in photocatalysis and superconductivity.
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signalword
Danger
Hazard Classifications
Acute Tox. 4 Oral - Aquatic Chronic 3 - Eye Dam. 1 - Repr. 2 - STOT RE 2
target_organs
Kidney,Adrenal gland
supp_hazards
Storage Class
11 - Combustible Solids
wgk
WGK 2
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
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Journal of the Chemical Society. Chemical Communications, 122-122 (1981)
J. Boyer et al.
Journal of Organometallic Chemistry, 184, 157-157 (1980)
Katsushi Kitahara et al.
Organic letters, 10(11), 2259-2261 (2008-05-01)
A variety of oximes were synthesized from the corresponding alcohols, alkyl halides, or alkyl sulfonates without using external oxidants. With this simple two-step procedure involving substitution with readily available TsNHOTBS and subsequent treatment with CsF, a range of oximes were


