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Chemical compound From Wikipedia, the free encyclopedia
Molybdenum carbide is an extremely hard, refractory, ceramic material, commercially used in tool bits for cutting tools.
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3D model (JSmol) |
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ChemSpider |
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ECHA InfoCard | 100.031.414 |
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CompTox Dashboard (EPA) |
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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).
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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.[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]