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 point602 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 NMR2.2 ppm upfield of H3PO4
MS
Masses of
main fragments

Structure and properties data

Structure and properties
Index of refraction1.460
Dielectric constant13 C2/(N·m2) at 22 °C
Bond strength533.5 kJ/mol (P=O)
Bond length158 pm (P=O)
202 pm (P-Cl)
Bond angle103° (Cl-P-Cl)
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References

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