Molybdenum carbide

Molybdenum carbide is an extremely hard, refractory, ceramic material, commercially used in tool bits for cutting tools.

Molybdenum carbide
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.031.414
EC Number
  • MoC: 234-569-3
  • Mo2C: 235-115-7
  • MoC: InChI=1S/C.Mo
  • Mo2C: InChI=1S/C.2Mo
  • MoC: [C]=[Mo]
  • Mo2C: C(=[Mo])=[Mo]
Properties
MoC and Mo2C
Molar mass 107,961 g/mol (MoC) and 203,911 g/mol (Mo2C)
Density 8.90 g/cm3
Melting point 2,687 °C (4,869 °F; 2,960 K)
Related compounds
Related Refractory ceramic materials
 Niobium carbide, tantalum carbide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

There are at least three reported phases of molybdenum carbide: γ-MoC, β-Mo2C, and γ'. The γ phase is structurally identical to tungsten carbide.

β-Mo2C has been suggested as a catalyst for carbon dioxide hydrogenation. The γ' phase forms by combining the elements at relatively low temperatures, and transforms to the γ phase at 800 °C.

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