Caesium sulfate

Caesium sulfate[1]
Names
Other names
Cesium sulfate
Identifiers
CAS Number
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.030.589
EC Number
  • 233-662-6
PubChem CID
UNII
CompTox Dashboard (EPA)
InChI
  • InChI=1S/2Cs.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2 checkY
    Key: FLJPGEWQYJVDPF-UHFFFAOYSA-L checkY
  • InChI=1/2Cs.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2
    Key: FLJPGEWQYJVDPF-NUQVWONBAO
SMILES
  • [Cs+].[Cs+].[O-]S([O-])(=O)=O
Properties
Chemical formula
Cs2SO4
Molar mass 361.87 g/mol
Density 4.243 g/cm3, solid
Melting point 1,010 °C (1,850 °F; 1,280 K)
Solubility in water
167 g/100 ml (0 °C)
179 g/100 ml (20 °C)
Solubility insoluble in ethanol, acetone
Magnetic susceptibility (χ)
−116.0·10−6 cm3/mol
Hazards
GHS labelling:
Pictograms
GHS07: Exclamation markGHS08: Health hazard
Signal word
Warning
Hazard statements
H302, H361, H412
Precautionary statements
P201, P202, P264, P270, P273, P281, P301+P312, P308+P313, P330, P405, P501
Flash point Non-flammable
Lethal dose or concentration (LD, LC):
LD50 (median dose)
2830 mg/kg (oral, rat)[2]
Related compounds
Other anions
Caesium hydrogen sulfate
Other cations
Lithium sulfate
Sodium sulfate
Potassium sulfate
Rubidium sulfate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is checkY☒N ?)
Infobox references

Caesium sulfate, cesium sulfate, caesium sulphate or cesium sulphate is the inorganic compound and salt with the formula Cs2SO4. It is a white water-soluble solid that is used to prepare dense aqueous solutions for use in isopycnic centrifugation.[3] It is isostructural with potassium sulfate.[4]

References

  1. ^ Weast, Robert C., ed. (1981). CRC Handbook of Chemistry and Physics (62nd ed.). Boca Raton, Florida: CRC Press. p. B-92. ISBN 0-8493-0462-8..
  2. ^ PubChem. "Cesium sulfate". pubchem.ncbi.nlm.nih.gov. Retrieved 2026-01-18.
  3. ^ Bonnet, F.; Périn, J. -P.; Jollès, P. (1980-05-29). "Proteoglycan complex and proteoglycan subunit polydispersity. Study by isopycnic centrifugation in cesium sulfate density gradients". Biochimica et Biophysica Acta (BBA) - Protein Structure. 623 (1): 57–68. doi:10.1016/0005-2795(80)90007-0. ISSN 0005-2795.
  4. ^ Nord, A.G. "The crystal structure of cesium sulfate, beta-Cs2SO4" Acta Chemica Scandinavica, Series A: 1976, 30, p198.