Phosphoryl chloride (data page)

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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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References