Molybdenum trioxide，99.9%，1-10um

SUOYI 99.95% high purity Molybdenum trioxide with CAS: 18868-43-4 MoO3 for catalyst
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White to gray, dark green, yellow when heated
Molybdenum trioxide white or pale yellow, transparent rhombic crystal. Density 4.692g/cm3. Melting point 795 ℃. Boiling point 1155 ℃ (sublimation). It turns yellow when heated and recovers when cold. Even below the melting point, there is a significant sublimation phenomenon. Insoluble in water, soluble in ammonia and strong alkalis. It reacts with alkali solution and many metal oxides to form Molybdate and polymolybdate. It is made by burning Molybdenite (MoS2) or adding hydrochloric acid to ammonium molybdate to precipitate molybdic acid and then heating and melting, or directly calcining ammonium molybdate. Compounds used in the production of metal molybdenum and molybdenum.

Molybdenum trioxide (MoO3) thin films were successfully prepared by the sol gel method. First, Molybdenum trioxide sol and gel were synthesized from CH3COCH2 COCH3, MoO3, C6H5CH3 and HOCH2CH2OCH3. Thermogravimetry and Differential thermal analysis (TG DTA) of gel showed that the crystallization of Molybdenum trioxide occurred in the 140 ℃ range near 508 ℃. Second, Molybdenum trioxide thin films were prepared on Si (111) substrates by spin coating method and annealed at 450 ℃ α The MoO3 phase. SEM morphology image shows that the grain distribution in the film is uniform and dense, and there is no preferred orientation on the substrate surface; Grain size range from 0.5 to 1 μ Between m

In gaseous state, Molybdenum trioxide is composed of MoO3 molecules, and there is a double bond between Mo-O. In solid state, anhydrous Molybdenum trioxide is a Orthorhombic crystal system, containing a layered structure composed of deformed Octahedron MoO6. The Octahedron is chained and cross-linked with oxygen atoms. One Mo-O (non cross-linked oxygen) bond in the Octahedron is short.
Use
Used as a high-efficiency flame-retardant and smoke suppressant, it is more effective for chlorine-containing adhesives. The reference dosage of 0.5~~5.0 parts can reduce the amount of smoke by 30%~80% and increase the oxygen index by 10%~20%. Molybdenum compound and copper oxide, iron oxide: cadmium oxide, zinc oxide and other mixed use have a synergistic effect, and its smoke suppression effect is better than single MoO3. Domestic flame retardant and smoke suppressant are mostly a mixture of molybdenum oxide and ammonium molybdate.
 Used as a raw material for the preparation of metallic molybdenum and molybdenum compounds. Used as a catalyst in the petroleum industry. It can also be used for enamel glaze pigments and medicines.
Efficient flame retardant and smoke suppression agent,making molybdenum and molybdenum compounds,catalyst,enameled glaze pigments and medicines.
Description: White powder, insoluble in water, soluble in acid. Can easily absorb moisture, can quickly absorb 
moisture and carbon dioxide in the air, it should be kept in sealed containers. 

Application: For the preparation of modern medical image display technology and nuclear science requirements of the scintillator crystal, laser materials of rare earth, rare earth fluoride glass optical fiber and infrared glass. Used in the manufacture of arc carbon electrodes in the light source for lighting. 
Manufacturing fluoride ion selective electro de used in chemical analysis. Used in the manufacture of special alloy and electrolytic production of metal Lanthanum in metallur gical industry. Used for drawing crystal of lanthanum fluoride-materials.