EMAIL THIS PAGE TO A FRIEND
20959 Sigma-Aldrich

Cesium carbonate

puriss. p.a., ≥99.0%

Synonym: Carbonic acid dicesium

  • CAS Number 534-17-8

  • Linear Formula Cs2CO3

  • Molecular Weight 325.82

  •  Beilstein/REAXYS Number 4546405

  •  EC Number 208-591-9

  •  MDL number MFCD00010957

  •  PubChem Substance ID 329752061

  •  NACRES NA.22

Purchase

Properties

Related Categories Analytical Reagents, Analytical Reagents for General Use, Analytical/Chromatography, C-D, Puriss p.a., Cesium,
Quality Level   100
grade   puriss. p.a.
assay   ≥99.0% (T)
  ≥99.0%
impurities   ≤0.002% total nitrogen (N)
mp   610 °C (dec.) (lit.)
anion traces   chloride (Cl-): ≤20 mg/kg
  sulfate (SO42-): ≤50 mg/kg
cation traces   Ca: ≤10 mg/kg
  Cd: ≤5 mg/kg
  Co: ≤5 mg/kg
  Cr: ≤5 mg/kg
  Cu: ≤5 mg/kg
  Fe: ≤5 mg/kg
  K: ≤50 mg/kg
  Mg: ≤5 mg/kg
  Mn: ≤5 mg/kg
  Na: ≤50 mg/kg
  Ni: ≤5 mg/kg
  Pb: ≤5 mg/kg
  Zn: ≤5 mg/kg
SMILES string   [Cs+].[Cs+].[O-]C([O-])=O
InChI   1S/CH2O3.2Cs/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2
InChI key   FJDQFPXHSGXQBY-UHFFFAOYSA-L

Description

Application

Cesium carbonate, an alkali metal carbonate, is a commonly used inorganic base in organic reactions.
Synthetic applications:
• As a catalyst to synthesize quinazoline-2,4(1H,3H)-diones from substituted 2-aminobenzonitriles and carbon dioxide.
• As a base to synthesize cyclic carbonates using halo- or tosyl-alcohols and carbon dioxide in the absence of any transition metal or organo catalyst.
• In combination with alkyl halide and acetonitrile, it forms an effective system for the alkylation method of phenols.

Promotes the efficient O-alkylation of alcohols to form mixed alkyl carbonates.

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
Precautionary statements 
Target organs 
Respiratory system
Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
WGK 2
RTECS 
FK9400000
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable

Documents

Certificate of Analysis (COA)

Please Enter a Lot Number
Protocols & Articles
Peer-Reviewed Papers
15

References

Related Products

Technical Service:

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Bulk Ordering & Pricing:

Need larger quantities for your development, manufacturing or research applications?