Phosphoryl chloride (data page)

This page provides supplementary chemical data on phosphoryl chloride.

Material Safety Data Sheets

Thermodynamic properties
Phase behavior
Triple point  ? K (? °C), ? Pa
Critical point 602 K (329 °C), ? Pa
Std enthalpy change
of fusion, ΔfusHo		  ? kJ/mol
Std entropy change
of fusion, ΔfusSo		  ? J/(mol·K)
Std enthalpy change
of vaporization, ΔvapHo		 +33. kJ/mol
Std entropy change
of vaporization, ΔvapSo		  ? J/(mol·K)
Solid properties
Std enthalpy change
of formation, ΔfHosolid		 −610.0 kJ/mol
Standard molar entropy,
Sosolid		  ? J/(mol K)
Heat capacity, cp  ? J/(mol K)
Liquid properties
Std enthalpy change
of formation, ΔfHoliquid		 −597.0 kJ/mol
Standard molar entropy,
Soliquid		  ? J/(mol K)
Heat capacity, cp  ? J/(mol K)
Gas properties
Std enthalpy change
of formation, ΔfHogas		 −592.0 kJ/mol
Std Gibbs' free energy
change of formation, ΔfGogas		 −545.2 kJ/mol
Standard molar entropy,
Sogas		 325 J/(mol K)
Heat capacity, cp  ? J/(mol K)

Spectral data
UV-Vis
Lambda-max  ? nm
Extinction coefficient  ?
IR
Major absorption bands  ? cm−1
NMR
Phosphorus-31 NMR 2.2 ppm upfield of H3PO4
MS
Masses of
main fragments

Structure and properties data
Structure and properties
Index of refraction 1.460
Dielectric constant 13 C2/(N·m2) at 22 °C
Bond strength 533.5 kJ/mol (P=O)
Bond length 158 pm (P=O)
202 pm (P-Cl)
Bond angle 103° (Cl-P-Cl)
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