Solid phase
Official name
Caesium sulfate
Secondary names
Cesium sulfate
CAS number
10294-54-9
Type
Family
ionic solid
Class
normal salt
Compound type
sulfate
Chemical composition
Formula
$Cs_2^+.(SO_4)^{2-}$
Chemical formula
Cs2SO4
Elemental formula
(Cs+)2 S O2 (O-)2
Isotope mixture type
terrestrial abundance
6.0
  Formula Name Family Number min-max Mole fraction Isotope mole fraction State Relevance
$Cs^+$ Caesium cation element 2 0.6666666666666666 1 constituent cation main
$(SO_4)^{2-}$ Sulfate anion chemical function 1 0.3333333333333333 1 anionic radical main
Chemical functions
  Function Number
$(SO_4)^{2-}$ 1
Chemical bonds
  Bond Number
$Cs^+ \cdot O^-$ 2
$\dddot - \dddot - \dddot - S \dddot - O^{-1/2}$ 4
Class
normal salts (07)
Type
simple normal salts (07.01)
Phase type
crystalline
Crystal system
orthorhombic
Crystal class
dipyramidal
Crystal class symbol
mmm (D2h)
Crystal spacegroup
Pnma
Molar mass
361.87 $g/mol$
Density
4.243 $g/cm^3$
State NTP
solid
Phase transitions
Phase transition type Other phases Temperature - Pressure
solid-liquid liquid Cs2SO4 1010°C (1280 K)
Refringence type
biaxial
Pure color
colorless
Color
colorless, white
Diaphaneity
transparent to translucent
Links