Title: Phosphorus Oxychloride
CAS Registry Number: 10025-87-3
CAS Name: Phosphoryl chloride
Additional Names: phosphorus chloride
Molecular Formula: Cl3OP
Molecular Weight: 153.33
Percent Composition: Cl 69.37%, O 10.43%, P 20.20%
Line Formula: POCl3
Literature References: Manuf: Faith, Keyes & Clark's Industrial Chemicals, F. A. Lowenheim, M. K. Moran, Eds. (Wiley-Interscience, New York, 4th ed., 1975) pp 646-649.
Properties: Colorless, clear, strongly fuming liquid; pungent odor. d25 1.645. bp 105.8°; mp 1.25°: J. R. Van Wazer, Phosphorus and Its Compounds vol. 1 (Interscience, New York, 1958) p 254. Reacts exothermically with water, alc. Keep in tightly closed containers.
Melting point: mp 1.25°
Boiling point: bp 105.8°
Density: d25 1.645
CAUTION: Potential symptoms of overexposure are irritation of eyes, skin, respiratory system; eye, skin burns; dyspnea, cough, lung edema; dizziness, headache, weakness; abdominal pain, nausea, vomiting; nephritis. See NIOSH Pocket Guide to Chemical Hazards (DHHS/NIOSH 97-140, 1997) p 254.
Use: As chlorinating agent, especially to replace oxygen in organic compounds; as solvent in cryoscopy. |