Chemical Properties Of Molybdenum

It is extremely difficult for molybdenum to lose seven or eight electrons [4]. This determines that molybdenum is chemically stable. At room temperature or at not too high temperatures, molybdenum is stable in air or water. Molybdenum heated in air, the color begins to turn from white (color) to dark gray; temperature rise to 520 ° C, molybdenum began to be slowly oxidized, generating Mo2O3; temperature rise to 600 ° C and above, molybdenum is rapidly oxidized into MoO3. molybdenum heated to 700 ~ 800 ° C in water vapor will begin to generate MoO2, it will be further heated, molybdenum dioxide is continued to oxidize into molybdenum trioxide. Molybdenum can spontaneously combust in pure oxygen to produce molybdenum trioxide. Many oxides of molybdenum have been reported, but many are reaction intermediates rather than thermodynamically stable phases.