Solid phase
Official name
dipotassium molybdenum tetrasulfide
Secondary names
dipotassium tetrathiomolybdate
Type
Family
ionic solid
Class
normal salt
Compound type
molybdate
Chemical composition
Formula
$K^+_2.(MoS_4)^{2-}$
Chemical formula
K2MoS4
Elemental formula
(K+)2 Mo S2 (S-)2
Isotope mixture type
terrestrial abundance
6.0
  Formula Name Family Number min-max Mole fraction Isotope mole fraction State Relevance
$K^+$ Potassium(1+) cation element 2 0.6666666666666666 1 constituent cation main
$(MoS_4)^{2-}$ Tetrathiomolybdate anion chemical function 1 0.3333333333333333 1 molecular ion main
Chemical functions
  Function Number
$(MoS_4)^{2-}$ 1
Chemical bonds
  Bond Number
$K^+ \cdot S^{-}-$ 2
$\dddot - \dddot - \dddot - Mo \dddot - S^{-1/2}$ 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
302.4 $g/mol$
Density
2.41 $g/cm^3$
State NTP
solid
Refringence type
biaxial
Pure color
red
Color
red
Links