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255718

Sigma-Aldrich

Cesium fluoride

99.99% trace metals basis

Synonym(s):

NSC 84270

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About This Item

Empirical Formula (Hill Notation):
CsF
CAS Number:
Molecular Weight:
151.90
EC Number:
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.23

assay

99.99% trace metals basis

form

solid

impurities

≤150.0 ppm Trace Metal Analysis

mp

682 °C (lit.)

solubility

methanol: slightly soluble(lit.)
pyridine: insoluble(lit.)

density

4.115 g/mL at 25 °C (lit.)

SMILES string

[F-].[Cs+]

InChI

1S/Cs.FH/h;1H/q+1;/p-1

InChI key

XJHCXCQVJFPJIK-UHFFFAOYSA-M

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Application

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.
Used as a base in the Suzuki carbonylative coupling of enol triflates with vinyl boronic acids.

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_germany

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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European Journal of Organic Chemistry, 2152-2152 (2007)
E D Risby et al.
Archives of general psychiatry, 48(6), 513-524 (1991-06-01)
As part of a study of the effects of lithium carbonate on neurochemical function in man, platelet and lymphocyte adenylate cyclase activity and lymphocyte beta-adrenergic receptor binding characteristics were determined before and after 2 weeks of lithium treatment in 10
E A Lesnik et al.
Journal of biomolecular structure & dynamics, 5(3), 601-614 (1987-12-01)
We have determined the 1H----3H exchange rate constants between water and C8H groups of purinic residues of alternating polynucleotides poly(dA-dT).poly(dA-dT), poly(dG-dC).poly(dG-dC) and poly(dA-dC).poly(dG-dT) as well as homopolynucleotides poly(dA).poly(dT) and poly(dG).poly(dC) in aqueous solutions with high-salt concentrations (3 M NaCl and
L Bertollini et al.
Neuroreport, 5(5), 553-556 (1994-01-31)
The effect of intracellular fluoride ions on voltage-dependent calcium currents was tested during whole-cell voltage-clamp recordings in thalamic neurones acutely dissociated from young adult rats. It is demonstrated that 5-30 mM intracellular fluoride selectively and reversibly suppresses the high voltage-activated
J Kypr et al.
International journal of biological macromolecules, 13(1), 9-13 (1991-02-01)
Ten DNA fragments containing self-complementary alternating sequences of adenine and thymine differing in length and the starting nucleotide were studied by c.d. spectroscopy. It was found that d(TATATATA) but not d(ATATATAT), d(TATATA), d(CTATATAG) or (dT-dA)20 isomerized into the unusual X-DNA

Articles

Colloidal quantum dots (CQDs) are semiconducting crystals of only a few nanometers (ca. 2–12 nm) coated with ligand/surfactant molecules to help prevent agglomeration.

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