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255718

Sigma-Aldrich

Cesium fluoride

99.99% trace metals basis

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Synonym(s):
NSC 84270
Empirical Formula (Hill Notation):
CsF
CAS Number:
Molecular Weight:
151.90
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

Quality Level

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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1 of 4

This Item
28934521530920989
Cesium fluoride 99.99% trace metals basis

Sigma-Aldrich

255718

Cesium fluoride

-
Cesium fluoride 99.9% trace metals basis

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289345

Cesium fluoride

-
Sodium fluoride 99.99% trace metals basis

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Sodium fluoride

-
Cesium fluoride BioUltra, ≥99.0% (F)

Sigma-Aldrich

20989

Cesium fluoride

Premium Grade
form

solid

form

-

form

powder

form

-

impurities

≤150.0 ppm Trace Metal Analysis

impurities

-

impurities

≤150.0 ppm Trace Metal Analysis

impurities

insoluble matter, passes filter test, ≤0.005% total nitrogen (N)

mp

682 °C (lit.)

mp

682 °C (lit.)

mp

993 °C (lit.)

mp

682 °C (lit.)

solubility

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

solubility

-

solubility

ethanol: insoluble(lit.)

solubility

H2O: 3 M at 20 °C, clear, colorless

density

4.115 g/mL at 25 °C (lit.)

density

4.115 g/mL at 25 °C (lit.)

density

-

density

4.115 g/mL at 25 °C (lit.)

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.

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 3 - Eye Dam. 1 - Repr. 2 - STOT RE 2

Supplementary Hazards

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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25G
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705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

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European Journal of Organic Chemistry, 2152-2152 (2007)
B Tabakoff et al.
The New England journal of medicine, 318(3), 134-139 (1988-01-21)
Blood platelets are an accessible tissue that reflects the activity of many enzymes found in the brain. To investigate the possible effect on such enzymes of long-term consumption of large quantities of ethanol, we assayed the activities of two enzymes
Accelerating palladium-catalyzed C-F bond formation: use of a microflow packed-bed reactor.
Timothy Noël et al.
Angewandte Chemie (International ed. in English), 50(38), 8900-8903 (2011-08-13)
Shengcai Zheng et al.
Chemical communications (Cambridge, England), 47(24), 6969-6971 (2011-05-20)
One pot asymmetrical double allylations of sodium sulfide catalyzed by an iridium complex along with a combination of caesium fluoride and water in dichloromethane have been realized and the double allylation products with two C-S bond chiral centers were obtained
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

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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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