Ethylene (data page)
This page provides supplementary chemical data on ethylene.
Structure and properties
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
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, ΔfusH |
+3.35 kJ/mol |
Std entropy change of fusion, ΔfusS |
+32.2 J/(mol·K) |
Std enthalpy change of vaporization, ΔvapH |
+13.5 kJ/mol |
Std entropy change of vaporization, ΔvapS |
? J/(mol·K) |
Solid properties | |
Std enthalpy change of formation, ΔfH |
? kJ/mol |
Standard molar entropy, S |
? J/(mol K) |
Heat capacity, cp | ? J/(mol K) |
Liquid properties | |
Std enthalpy change of formation, ΔfH |
? kJ/mol |
Standard molar entropy, S |
117.8 J/(mol K) |
Heat capacity, cp | 67.4 J/(mol K) |
Gas properties | |
Std enthalpy change of formation, ΔfH |
+52.47 kJ/mol |
Standard molar entropy, S |
219.32 J/(mol K) |
Enthalpy of combustion, ΔcH |
–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
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 | –32 | –29.1 | –1.5 | — |
Table data obtained from CRC Handbook of Chemistry and Physics, 44th ed.
![](../I/m/LogEthyleneVaporPressure.png)
log10 of ethylene vapor pressure. Uses formula: , obtained from Lange's Handbook of Chemistry, 10th ed.
Spectral data
UV-Vis | |
---|---|
λmax | ? nm |
Extinction coefficient, ε | ? |
IR | |
Major absorption bands | 974 cm−1 |
NMR | |
Proton NMR | |
Carbon-13 NMR | |
Other NMR data | |
MS | |
Masses of main fragments |
|
Material Safety Data Sheet
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.
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References
- 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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