Molybdenum Dioxide And Molybdenum Trioxide

Molybdenum Dioxide, is a kind of brown-black powder with steel shiny purple. The density of Molybdenum Dioxide is 6.44 g/cm3, we can get Molybdenum when heat the Molybdenum Dioxide  with hydrogen the temperature is above 500℃. And generate Molybdenum Oxychloride reaction with chlorine, and hydrogen chloride, alkaline,acid reaction. And it is very slightly soluble in Sulfuric Acid, Nitric Acid and Silver Nitrate. Oxidation of Molybdenum Dioxide can get Molybdenum Trioxide. Can be made of metal Molybdenum in steam heating, or heating to 470 ℃ MoO3 in hydrogen reduction of. Used in producing Molybdenum and other Molybdenum compounds.

Molybdenum is a silver-white metallic powdered Molybdenum gloss black, the melting point of it is 2610℃, the boiling point of it is 5560℃, the density of it is 10.2g/cm3. Molybdenum is very stable at room temperature in air, when the temperature was raised to 600℃, quickly react with oxygen to produce the more volatile Molybdenum Trioxide. At 500 to 1150 ℃ reduction with hydrogen trioxide or Ammonium Molybdate , Molybdenum can be available. MoO3 molecular weight of 143.94. White transparent rhombic crystals, to yellow when heated, cooled and restore the original color. Density 4.692g/cm3, melting point 795 ℃, boiling point 1155 ℃, easy sublimation. Insoluble in water, can be melted in a solution of ammonia and alkali generated Molybdate. Dissolved in acid, Molybdenum Dioxide generated root (MoO22 +) and Molybdenum Oxide root (MoO4 +) complex cation to form a soluble complex with the acid group. Oxidizing very weak at high temperature may be hydrogen, carbon, aluminum reduction. Reagents for the analysis, Molybdenum and Molybdenum alloy salt preparation. Ignition or Molybdenum or Molybdenum Disulfide to obtain calcined in air Molybdate.

While the Molybdenum Dioxide is different from Molybdenum Trioxide, it has two oxygen atoms, Molybdenum Dioxide, brown black powder, with steel shiny purple. Oxidation of it is very weak, at high temperature can be hydrogen, carbon, aluminum reduction. Used as an analytical reagent, preparation of Molybdenum and Molybdenum salt. Burning Molybdenum or Molybdenum Disulfide in air or roasting Molybdenum prepared.