Nomenclature
CAS number: 7719-12-2
Phosphorous chloride.
Cl
3P; mol wt 137.33.
Cl 77.45%, P 22.55%.
PCl
3.
Description and references
Prepd from red phosphorus and dry chlorine
in the presence of refluxing PCl3: Forbes et al., Inorg. Synth. 2, 145
(1946). Manuf: Faith, Keyes & Clark's
Industrial Chemicals, F. A. Lowenheim, M. K. Moran, Eds.
(Wiley-Interscience, New York, 4th ed., 1975) pp 654-657. Review: Payne, “Chemistry of Phosphorus Halides” in Topics in Phosphorus Chemistry vol. 4, M.
Grayson, E. J. Griffith, Eds. (Interscience, New York, 1967) pp 85-155.
Properties
Colorless, clear, fuming liquid. d421 1.574. mp -112°. bp 76°. Vapor pressure: 100 mm
(21°). Decomposed by water or alc. Sol in benzene, chloroform, ether,
carbon disulfide. Poisonous; corrosive. Keep
in tightly closed containers and handle with caution.Caution
Potential symptoms of overexposure
are irritation of eyes, skin, nose and throat; pulmonary edema; burns
eyes and skin. See NIOSH Pocket
Guide to Chemical Hazards (DHHS/NIOSH 97-140, 1997) p
256.Use
As of phosphorus oxychloride; manuf POCl
3, PCl
5; producing iridescent metallic deposits.