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Molybdenum carbide
Identifiers
CAS Number	MoC: 12011-97-1; Mo2C: 12069-89-5 ;
3D model (JSmol)	MoC: Interactive image; Mo2C: Interactive image;
ChemSpider	Mo2C: 9162545;
ECHA InfoCard	100.031.414
EC Number	MoC: 234-569-3; Mo2C: 235-115-7;
PubChem CID	MoC: 71623305; Mo2C: 10987348;
CompTox Dashboard (EPA)	DTXSID10923231 ;
	InChI MoC: InChI=1S/C.Mo; Mo2C: InChI=1S/C.2Mo;
	SMILES MoC: [C]=[Mo]; Mo2C: C(=[Mo])=[Mo];
Properties
Chemical formula	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

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

There are at least three reported phases of molybdenum carbide: γ-Mo C, β-Mo₂C, and γ'. The γ phase is structurally identical to tungsten carbide.^[1]

β-Mo₂C has been suggested as a catalyst for carbon dioxide hydrogenation.^[2] The γ' phase forms by combining the elements at relatively low temperatures, and transforms to the γ phase at 800 °C.^[3]

References

^ "Molybdenum Carbide Mo2C, ESPI Metals". Archived from the original on 21 July 2018. Retrieved 1 November 2016.
^ Zhou, Hui; Chen, Zixuan; Kountoupi, Evgenia; Tsoukalou, Athanasia; Abdala, Paula M.; Florian, Pierre; Fedorov, Alexey; Müller, Christoph R. (2021-09-17). "Two-dimensional molybdenum carbide 2D-Mo2C as a superior catalyst for CO₂ hydrogenation". Nature Communications. 12 (1): 5510. Bibcode:2021NatCo..12.5510Z. doi:10.1038/s41467-021-25784-0. ISSN 2041-1723. PMC 8448824. PMID 34535647.
^ KuO, K.; HÄGG, G. (1952). "A New Molybdenum Carbide". Nature. 170 (4319): 245–246. Bibcode:1952Natur.170..245K. doi:10.1038/170245a0. ISSN 0028-0836. S2CID 4161374.

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[MO-1] "Molybdenum Carbide Mo2C, ESPI Metals". Archived from the original on 21 July 2018. Retrieved 1 November 2016.

[2] Zhou, Hui; Chen, Zixuan; Kountoupi, Evgenia; Tsoukalou, Athanasia; Abdala, Paula M.; Florian, Pierre; Fedorov, Alexey; Müller, Christoph R. (2021-09-17). "Two-dimensional molybdenum carbide 2D-Mo2C as a superior catalyst for CO₂ hydrogenation". Nature Communications. 12 (1): 5510. Bibcode:2021NatCo..12.5510Z. doi:10.1038/s41467-021-25784-0. ISSN 2041-1723. PMC 8448824. PMID 34535647.

[3] KuO, K.; HÄGG, G. (1952). "A New Molybdenum Carbide". Nature. 170 (4319): 245–246. Bibcode:1952Natur.170..245K. doi:10.1038/170245a0. ISSN 0028-0836. S2CID 4161374.

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