Phosphorus Trichloride Properties, Molecular Formula, Applications - WorldOfChemicals

Phosphorus Trichloride Properties

Phosphorus Trichloride

Guanfacine Hydrochloride-Product_Structure
Molecule 3D Structure Image
Guanfacine Hydrochloride-Molecule 3D Structure
Molecule Structure Image



Phosphorus trichloride is a chemical compound of phosphorus and chlorine. It is an important industrial chemical, being used for the manufacture of organophosphorus compounds for a wide variety of applications. It is used in herbicides, insecticides, plasticisers, oil additives, and flame retardants. It is the precursor to triphenylphosphine for the Wittig reaction, and phosphite esters which may be used as industrial intermediates, or used in the Horner-Wadsworth-Emmons reaction, both important methods for making alkenes. It can be used to make trioctylphosphine oxide (TOPO), used as an extraction agent, although TOPO is usually made via the corresponding phosphine. It is also used directly as a reagent in organic synthesis. It is used to convert primary and secondary alcohols into alkyl chlorides, or carboxylic acids into acyl chlorides.

Chemical Properties

Appearance Colourless liquid
Boiling Point 76.1 °C
CAS Number 7719-12-2
ChEBI 30334
Density 1.57 g/cm3
Dipole Moment 0.97 D
EINECS Number 231-749-3
IUPAC Name Phosphorus Trichloride
InChI 1S/3ClH.P/h3*1H;/q;;;+3/p-3
Main Hazards Very toxic;Corrosive
Melting Point -93.6 °C
Molar Mass 137.33 g/mol
Molecular Formula PCl3
NFPA 704 H-4,F-0,R-2,C-W
RTECS Number TH3675000
Refractive 1.516 n/D
Related Compounds Phosphorus Trifluoride;Phosphorus Tribromide;Phosphorus Triiodide
Synonyms Phosphorus(III) Chloride;Phosphorous Chloride;Phosphoruschloride;Phosphine, trichloro-;Trichlorophosphine uses cookies to ensure that we give you the best experience on our website. By using this site, you agree to our Privacy Policy and our Terms of Use. X