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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: soluble3 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

Suggested Laboratory Gloves


Laboratory GlovesThis substance has been tested against several types of hand protection for CE compliance. Click below to find the recommended gloves for handling this product.



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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