289345

Cesium fluoride

99.9% trace metals basis

• Synonym(s): NSC 84270
• Empirical Formula (Hill Notation): CsF
• CAS Number: 13400-13-0
• Molecular Weight: 151.90
• NACRES: NA.22
• PubChem Substance ID: 24857410
• UNSPSC Code: 12352302
• EC Number: 236-487-3
• MDL number: MFCD00010960
• Assay: 99.9% trace metals basis

Properties

• Quality Segment: 200
• assay: 99.9% trace metals basis
• mp: 682 °C (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

Description

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 a Suzuki cross-coupling synthesis of ortho-substituted biaryls. Also employed as a reagent for nucleophilic fluorination of primary halides and sulfonates in protic media such as tert-butyl and tert-pentyl alcohols.

Safety Information

• pictograms: GHS08,GHS05,GHS07
• signalword: Danger
• hcodes: H302,H318,H361d,H373,H412
• pcodes: P202 - P273 - P280 - P301 + P312 - P305 + P351 + P338 - P308 + P313
• Hazard Classifications: Acute Tox. 4 Oral - Aquatic Chronic 3 - Eye Dam. 1 - Repr. 2 - STOT RE 2
• target_organs: Kidney,Adrenal gland
• supp_hazards: EUH032
• 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