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20960 Sigma-Aldrich

Cesium carbonate

purum p.a., ≥98.0% (T)

Synonym: Carbonic acid dicesium

  • CAS Number 534-17-8

  • Linear Formula Cs2CO3

  • Molecular Weight 325.82

  •  Beilstein Registry Number 4546405

  •  EC Number 208-591-9

  •  MDL number MFCD00010957

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Properties

Related Categories Acids & Bases, Bases, Chemical Synthesis, Inorganic Bases, Synthetic Reagents More...
InChI Key   FJDQFPXHSGXQBY-UHFFFAOYSA-L
grade   purum p.a.
assay   ≥98.0% (T)
loss   ≤2% loss on drying
mp   610 °C (dec.)(lit.)
anion traces   chloride (Cl-): ≤1000 mg/kg
  sulfate (SO42-): ≤500 mg/kg
cation traces   Ca: ≤50 mg/kg
  Cd: ≤50 mg/kg
  Co: ≤50 mg/kg
  Cu: ≤50 mg/kg
  Fe: ≤50 mg/kg
  K: ≤200 mg/kg
  Na: ≤250 mg/kg
  Ni: ≤50 mg/kg
  Pb: ≤50 mg/kg
  Zn: ≤50 mg/kg

Description

Application

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

Catalyst for:
aerobic oxidation of primary alcohols
1,4-addition reactions
Reagent for:
Synthesis of phosphazene derivatives
Constrictive binding interactions
Intramolecular C-N cross coupling reactions
Dehydrohalogenative polycondensation

Other Notes

Used for preparing cesium carboxylates which react with halogenides to give esters and lactones ; Used for an analogous preparation of thio ethers

Same product — same quality — now Sigma-Aldrich brand

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.




Cross-Coupling Guide
Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
Precautionary statements 
Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
2
RTECS 
FK9400000

Documents

Certificate of Analysis

Protocols & Articles

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Peer-Reviewed Papers
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