Phosphorus trichloride is a precursor to PCl5 and a few other phosphorus compounds, which is used in many applications, including herbicides, insecticides, oil additives, flame retardants, etc. It is used directly as a reagent in organic synthesis.

Phosphorus Trichloride is a colorless, clear, fuming liquid with a strong odor. It is used in gasoline additives and textile finishing, and to make other chemicals, pesticides, dyestuffs, catalysts and plasticizers.

The attractive forces between ions is much greater than the attractive forces between molecules. BCl3 is a non-polar molecule; its strongest intermolecular forces are London forces; it has the lowest melting point. PCl3 is a polar molecule and its strongest intermolecular forces are dipole-dipole interactions.

 Phosphorous trichloride is not found in nature. It is just obtain through organic synthesis. Physical properties: Phosphorous trichloride is a yellow to colorless, liquid, with pungent and irritating odor.

PHOSPHORUS TRICHLORIDE FOR SYNTHESIS