Constituent
Name
Sodium sulfate hydrates
Official name
Sodium sulfate hydrates
Family
ionic solid
Class
normal salt
Compound type
sulfate
Constituent abundance in material
Relevance
main - major
Arrangement
inclusion
Mass fraction
30.0 $\pm$ 0.1
Chemical composition
Formula
$(Na^+)_2 \cdot SO_4^{2-} \bullet n(H_2O)$
Chemical formula
Na2SO4•n(H2O)
Elemental formula
(Na+)2 S (O)3-12 (O-)2 (H)2-20
Isotope mixture type
terrestrial abundance
  Formula Name Family Number min-max Mole fraction Isotope mole fraction State Relevance
$Na^+$ Sodium cation element 2 0.23529411764705882 1 constituent cation main
$(SO_4)^{2-}$ Sulfate anion chemical function 1 0.11764705882352941 1 anionic radical main
$H_2O$ Water molecule 1 - 10 0.6470588235294118 $\pm$ 0.5294117647058824 1 hydration main
Chemical functions
  Function Number Relevance
$(SO_4)^{2-}$ 1
$R-OH$ 2 main
Chemical bonds
  Bond Number Relevance
$Na^+ \cdot O^{-}-$ 2
$-O \dots H-$ n
$-O-H$ 2 main
$\dddot - \dddot - \dddot - S \dddot - O^{-1/2}$ 4
Class
normal salts (07)
Type
hydrated simple normal salts (07.04)
Phase type
crystalline
Crystal system
various
Crystal class
various
Crystal class symbol
various
Crystal spacegroup
various
Molar mass
160.055 - 322.20 $g/mol$
Density
2.664 - 1.464 $g/cm^3$
Refringence type
various
Refraction index $n_{\alpha}$
1.394 (decahydrate) to 1.468 (anhydrous)
Diaphaneity
transparent to translucent
Luster
vitreous