Molybdenum Oxide

Synonyms: Molybdic anhydride; molybdic trioxide; molybdenum oxide
CAS No.: 1313-27-5
Molecular weight: 143.94
Chemical formula: MoO3

Physical / Chemical Characters
  • Light green powder or grain, loose, without solid lump
  • Bulk specific gravity: 1.0~1.5g/cm³
  • Slightly soluble in water
  • Soluble in ammonia, liquid alkali, hydrofluoric acid, concentrated sulphuric acid
Specification
Assay ≥99.5%
Mo content ≥66.5%
K + Na ≤120 ppm
Sulfur ≤50 ppm
Al/ Ca each 15 ppm max
Fe ≤30 ppm
Ni ≤20 ppm
Cu/ Pb/ Mg/ Cr each 10 ppm max
Applications
  • Incompatible with alkali metals, most common metals and oxidizing agents
  • Explodes on contact with molten magnesium
  • Violent reaction with interhalogens (e.g. bromine pentafluoride; chlorine trifluoride)
  • Incandescent reaction with hot sodium, potassium or lithium

Fire: Not considered to be a fire hazard or explosion hazard. In case of a fire, use any means suitable for extinguishing surrounding fire.

Shelf Life

12 months

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