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20989 Sigma

Cesium fluoride

BioUltra, ≥99.0% (F)

Synonym: NSC 84270

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Properties

Related Categories Alphabetical, Biochemicals and Reagents, Density Gradient, Salts of Alkali Metals
InChI Key   XJHCXCQVJFPJIK-UHFFFAOYSA-M
product line   BioUltra
assay   ≥99.0% (F)
impurities   insoluble matter, passes filter test
  ≤0.005% total nitrogen (N)
loss   ≤0.5% loss on drying, 110 °C
pH   6.5-7.5 (25 °C, 3 M in H2O)
mp   682 °C(lit.)
solubility   H2O: 3 M at 20 °C clear, colorless
density   4.115 g/mL at 25 °C(lit.)
anion traces   chloride (Cl-): ≤500 mg/kg
  sulfate (SO42-): ≤50 mg/kg
cation traces   Al: ≤10 mg/kg
  As: ≤0.5 mg/kg
  Ba: ≤5 mg/kg
  Bi: ≤5 mg/kg
  Ca: ≤10 mg/kg
  Cd: ≤5 mg/kg
  Co: ≤5 mg/kg
  Cr: ≤5 mg/kg
  Cu: ≤5 mg/kg
  Fe: ≤30 mg/kg
  K: ≤100 mg/kg
  Li: ≤5 mg/kg
  Mg: ≤5 mg/kg
  Mn: ≤5 mg/kg
  Mo: ≤5 mg/kg
  Na: ≤50 mg/kg
  Ni: ≤5 mg/kg
  Pb: ≤5 mg/kg
  Sr: ≤5 mg/kg
  Zn: ≤5 mg/kg
λ   3 M in H2O
UV absorption   λ: 260 nm Amax: 0.05
  λ: 280 nm Amax: 0.05

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

Price and Availability


Laboratory Gloves
Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Supplemental Hazard Statements 
Contact with acids liberates very toxic gas.
RIDADR 
UN 3288 6.1 / PGIII
WGK Germany 
2
RTECS 
FK9650000
Protocols & Articles
Peer-Reviewed Papers
15

References

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