Caesium carbonate

Caesium carbonate
IUPAC name Caesium carbonate
Other names Cesium carbonate
Identifiers
CAS number	534-17-8 Y
PubChem	10796
ChemSpider	10339 Y
EC-number	208-591-9
Jmol-3D images	Image 1
SMILES [Cs+].[Cs+].[O-]C([O-])=O
InChI InChI=1S/CH2O3.2Cs/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2 Y Key: FJDQFPXHSGXQBY-UHFFFAOYSA-L Y InChI=1/CH2O3.2Cs/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2 Key: FJDQFPXHSGXQBY-NUQVWONBAO
Properties
Molecular formula	Cs2CO3
Molar mass	325.82 g/mol
Appearance	white powder
Density	4.072 g/cm3
Melting point	610 °C (decomp.)
Solubility in water	2605 g/L (15 °C)
Solubility in ethanol	110 g/L
Solubility in diethyl ether	soluble
Hazards
EU Index	not listed
Flash point	non-flammable
Related compounds
Other anions	Caesium bicarbonate
Other cations	Lithium carbonate Sodium carbonate Potassium carbonate Rubidium carbonate
Y (verify) (what is: Y/N?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Caesium carbonate (or cesium carbonate in the US) is a white crystalline solid of formula Cs₂CO₃. It is more soluble in organic solvents than many other carbonates such as potassium carbonate, and therefore finds use as a base in organic chemistry.

Characteristic of carbonate salts, it reacts with protic acids such as hydrochloric acid to give carbon dioxide gas, water, and a caesium salt as follows:

Cs₂CO₃ + 2 HCl → 2 CsCl + H₂O + CO₂

This may be used as a way to produce other caesium salts.

Further reading

• Crich, David; Banerjee, Abhisek (2006), "Expedient Synthesis of syn-β-Hydroxy-α-amino acid derivatives: Phenylalanine, Tyrosine, Histidine and Tryptophan", J. Org. Chem. 71 (18): 7106–9, doi:10.1021/jo061159i, PMC 2621330, PMID 16930077 .

External links

• Preparations from Organic Syntheses in which caesium carbonate appears
• Caesium carbonate factsheet from Chemetall GmbH