Molybdenum trioxide powder Raw Materials CAS 1313-27-5

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Uses and synthesis of Molybdenum trioxide powder

Molybdenum trioxide powder, also known as molybdenum anhydride, has a molecular weight of 143.94. White transparent rhombic crystal, with a light green color, turns yellow when heated, and returns to its original color when cooled. Density 4.692g/cm3, melting point 795℃, boiling point 1155℃, easy to sublimate. Molybdenum trioxide can be used as analytical reagent to produce raw material of molybdenum metal, molybdenum alloy and molybdenum salt. Used as a catalyst in the petroleum industry; Used for enamel glaze pigment and medicine. Molybdenum trioxide powder is produced by burning molybdenum or molybdenum disulfide in air or roasting molybdic acid.

Applications/Functions of Molybdenum trioxide powder

• Molybdenum trioxide powder is used as a reducing agent for phosphorus pentoxide, arsenic trioxide, hydrogen peroxide, phenol and alcohols, and also in the manufacture of molybdenum salts and molybdenum alloys
• Molybdenum trioxide used as a raw material for producing molybdenum metal and molybdenum compounds. Used as a catalyst in the petroleum industry. It can also be used for enamel glaze pigment and medicine.
• Metallurgical industry used as powder metallurgy raw materials, the production of various molybdenum metal materials, chemical industry used as a variety of molybdenum compound molybdenum source additives, molybdenum catalyst raw materials.
• Biochemical research

Physicochemical Property of Molybdenum trioxide powder

Colorless or yellowish-white powder, rhombic crystal system. Very slightly soluble in water, soluble in acid, alkali and ammonia aqueous solutions.

Production methodprocess of Molybdenum trioxide powder

Ammonium molybdate thermal decomposition method crushed molybdate concentrate to 60 ~ 80 mesa, put it into a baking furnace at 500 ~ 550℃ oxidation roasting, leaching with ammonia, ammonium molybdate solution removed impurities, heated to 40 ~ 45℃, adding nitric acid under agitation to neutralize to Ph=1.5, resulting in ammonium octamolybdate precipitation, filtered, centrifuged and dehydrated, dissolved in 70 ~ 80℃ ammonia. Ammonium paramolybdate was obtained by evaporation and concentration. Molybdenum trioxide powder was obtained by thermal decomposition at 550 ~ 600℃.

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