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Phosphoryl chloride (data page)

This page provides supplementary chemical data on phosphoryl chloride.

Material Safety Data Sheets

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Thermodynamic properties

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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

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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

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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

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