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Molybdenum Metal (Mo)-Foil

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  • 7439-98-7
  • Mo
  • 99.95%
  • 5 x 1 - 1 mm.etc
  • 231-107-2


Molybdenum is a chemical element with the symbol Mo and atomic number 42.Molybdenum does not occur naturally as a free metal on Earth; it is found only in various oxidation states in minerals. The free element, a silvery metal with a gray cast, has the sixth-highest melting point of any element.  

Phase at STP:solid

Appearance:gray metallic

Melting point:2896 K (2623 °C, 4753 °F)

Boiling point:4912 K (4639 °C, 8382 °F)

Density (near r.t.):10.28 g/cm3

when liquid (at m.p.):9.33 g/cm3

Heat of fusion:37.48 kJ/mol

Heat of vaporization:598 kJ/mol

Molar heat capacity:24.06 J/(mol·K)


Molybdenum is mainly used in the steel industry.The 0.3% molybdenum additive can improve the strength and corrosion resistance of cast iron of several steel types.Rust-resistant and acid-resistant molybdenum steel alloys contain between 0.4 and 3.5% molybdenum.Surface treatment can improve the mechanical strength of molybdenum-containing steel.Some fast steels also have as much as 14.5% molybdenum.Molybdenum replaces nickel in some steels.In this case, cr-mo steel is obtained instead of cr-ni steel.At present, molybdenum is also used in the production of heat-resistant super alloys.

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