Reaction of phosphorus trifluoride and thiophosphoryl fluoride with iodine monochloride and oxidation of phosphorus trifluoride with nitryl chloride, iodic acid, periodic acid, sodium nitrite and potassium nitrite

Abstract

Phosphorus trifluoride and thiophosphoryl fluoride both react smoothly with iodine monochloride at room temperature to form dichlorotrifluorophosphorane. The oxidants, nitryl chloride, iodic acid and periodic acid undergo reduction to nitrosyl chloride and iodine respectively, oxidising the phosphorus trifluoride to phosphoryl fluoride. The nitrite salts of sodium and potassium also undergo reduction at elevated temperatures(200°C) with phosphorus trifluoride and then react further with the formed phosphoryl fluoride to yield the corresponding monofluorophosphates of sodium and potassium.