Solid phase
Official name
Molybdenum disulfide
Secondary names
Molybdenum(IV) sulfide
CAS number
1317-33-5
Type
Family
molecular solid
Class
non polar molecular solid
Compound type
sulfide
Chemical composition
Formula
MoS2
Chemical formula
MoS2
Elemental formula
Mo S2
Isotope mixture type
terrestrial abundance
6.0
  Formula Name Family Number min-max Mole fraction Isotope mole fraction State Relevance
Mo Molybdenum element 1 0.3333333333333333 1 constituent element main
S Sulfur element 2 0.6666666666666666 1 constituent element main
Chemical bonds
  Bond Number
≥∣Mo−S− 4
Class
pseudometals (14)
Type
homovalent bilayer pseudometals (14.02)
Equivalent mineral
Molybdenite
Phase type
crystalline
Crystal system
hexagonal
Crystal class
dihexagonal-dipyramidal
Crystal class symbol
6/mmm (D6h)
Crystal spacegroup
P6(3)/mmc
Molar mass
160.07 g/mol
Density
5.06 g/cm3
State NTP
solid
Phase transitions
Phase transition type Other phases Temperature - Pressure
solid-liquid liquid 2375°C (2648 K)
Refringence type
uniaxial
Pure color
black
Color
black, lead gray, gray
Diaphaneity
opaque
Luster
metallic
Links