dipotassium molybdenum tetrasulfide | SSHADE

Processing math: 62%

Solid phase

Official name: dipotassium molybdenum tetrasulfide

Name and identifiers

Secondary names: dipotassium tetrathiomolybdate

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 and bonds

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)

Crystallography

Phase type: crystalline
Crystal system: orthorhombic
Crystal class: dipyramidal
Crystal class symbol: mmm (D2h)
Crystal spacegroup: Pnma

Physical properties

Molar mass: 302.4 $g/mol$
Density: 2.41 $g/cm^3$

Thermodynamical properties

State NTP: solid

Optical properties

Refringence type: biaxial
Pure color: red
Color: red

Links and Publications

Links

Materials Project: K2MoS4