Caesium sulfate

Caesium sulfate[1]
Other names
Cesium sulfate
10294-54-9 YesY
3D model (Jmol) Interactive image
ChemSpider 23482 YesY
ECHA InfoCard 100.030.589
EC Number 233-662-6
UNII 8D6R91CS62 YesY
Molar mass 361.87 g/mol
Density 4.243 g/cm3, solid
Melting point 1,010 °C (1,850 °F; 1,280 K)
167 g/100 ml (0 °C)
Solubility insoluble in ethanol, acetone
Flash point Non-flammable
Lethal dose or concentration (LD, LC):
2830 mg/kg (oral, rat)[2]
Related compounds
Other anions
Caesium hydrogensulfate
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).
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Infobox references

Caesium sulfate (cesium sulfate) 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 (or "density-gradient") centrifugation. It is isostructural with potassium salt.[3]


  1. Weast, Robert C., ed. (1981). CRC Handbook of Chemistry and Physics (62nd ed.). Boca Raton, FL: CRC Press. p. B-92. ISBN 0-8493-0462-8..
  3. Nord, A.G. "The crystal structure of cesium sulfate, beta-Cs2SO4" Acta Chemica Scandinavica, Series A: 1976, 30, p198.
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