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  • Phosphine oxide is an  aqueous solution of a colorless crystalline solid.
  • Basically Phosphine oxides are phosphorus compounds with the formula OPX3.
  • Phosphine-oxides are obtained by oxidation of trisubstituted phosphines.
  • Phosphine oxides are in both organic and  inorganic forms.
  • Inorganic Compounds are thermally stable decomposing only above 450 C.
  • Phosphine oxides are ligands in various applications of homogeneous catalysis.
  • Typically Phosphine oxides are viewed as useless by-products in the Wittig reaction.
  • Phosphine oxide's parent compound is  unstable.
  • Phosphine oxide is reported as an intermediate in the room-temperature polymerization of phosphine and nitric oxide to solid PxHy.
  • Phosphine oxide is also stable in a water-ethanol solution by electrochemical oxidation of white phosphorus and it  slowly disproportionates into phosphine and hypophosphorous acid.
  • Phosphine used as the single-most relied upon fumigant to control stored grain pests in Australian grain-production systems.
  • Phosphine oxides are playing an important role in Flame retardant for cotton, chemosterilant for insects, pesticide for mites & ticks, photographic emulsion hardener, agent in the permanent press treatment of cotton, agent in textile dyeing, & agent for polymer stabilization are former uses.
  • Phosphine oxide products like Dihexyl monooctyl phosphine oxide and Trihexyl phosphine oxide was introduced as metal extractant CYANEX 923 by American Cyanamide Company.
  • Phosphine oxide is tautomeric with phosphinous acid.

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