Ethylene (data page)

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This page provides supplementary chemical data on ethylene.

Structure and properties[edit]

Structure and properties
Index of refraction ?
Dielectric constant ? ε0 at ? °C
Bond strength ?
Bond length C-C 133pm C-H 108 pm
Bond angle 121.7
Magnetic susceptibility ?

Thermodynamic properties[edit]

Phase behavior
Triple point 104 K (−169 °C), 120 Pa
Critical point 282.5 K (9.4 °C), 50.6 bar
Std enthalpy change
of fusion
, ΔfusHo
+3.35 kJ/mol
Std entropy change
of fusion
, ΔfusSo
+32.2 J/(mol·K)
Std enthalpy change
of vaporization
, ΔvapHo
+13.5 kJ/mol
Std entropy change
of vaporization
, ΔvapSo
? J/(mol·K)
Solid properties
Std enthalpy change
of formation
, ΔfHosolid
? kJ/mol
Standard molar entropy,
? J/(mol K)
Heat capacity, cp ? J/(mol K)
Liquid properties
Std enthalpy change
of formation
, ΔfHoliquid
? kJ/mol
Standard molar entropy,
117.8 J/(mol K)
Heat capacity, cp 67.4 J/(mol K)
Gas properties
Std enthalpy change
of formation
, ΔfHogas
+52.47 kJ/mol
Standard molar entropy,
219.32 J/(mol K)
Enthalpy of combustion, ΔcHo –1387.4 kJ/mol
Heat capacity, cp 42.9 J/(mol K)
van der Waals' constants[1] a = 453.02 L2 kPa/mol2
b = 0.05714 liter per mole

Vapor pressure of liquid[edit]

P in mmHg 1 10 40 100 400 760 1520 3800 7600 15200 30400
T in °C –168.3 –153.2 –141.3 –131.8 –113.9 –103.7 –90.8 –71.1 –52.8 –29.1 –1.5  —

Table data obtained from CRC Handbook of Chemistry and Physics, 44th ed.

log10 of ethylene vapor pressure. Uses formula: , obtained from Lange's Handbook of Chemistry, 10th ed.

Spectral data[edit]

λmax ? nm
Extinction coefficient, ε ?
Major absorption bands 974 cm−1
Proton NMR  
Carbon-13 NMR  
Other NMR data  
Masses of
main fragments

Material Safety Data Sheet[edit]

The handling of this chemical may incur notable safety precautions, it is highly recommend that you seek the Material Safety Datasheet (MSDS) for this chemical from a reliable source such as SIRI, and follow its directions.


  1. ^ Lange's Handbook of Chemistry 10th ed, pp 1522-1524

Except where noted otherwise, data relate to standard ambient temperature and pressure.

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