Ethylene (data page)
{{Short description|Chemical data page}}
This page provides supplementary chemical data on ethylene.
== Structure and properties ==
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! {{chembox header}} | 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 ==
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! {{chembox header}} | 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) |
| {{chembox header}} | Solid properties |
|---|
| Std enthalpy change of formation, ΔfH | ? kJ/mol |
| Standard molar entropy, S | ? J/(mol K) |
| Heat capacity, cp
| ? J/(mol K) |
| {{chembox header}} | 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) |
| {{chembox header}} | 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' constantsLange's Handbook of Chemistry 10th ed, pp 1522-1524
| a = 453.02 L2 kPa/mol2 |
Vapor pressure of liquid
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| {{chembox header}} | P in mmHg | 1 | 10 | 40 | 100 | 400 | 760 | 1520 | 3800 | 7600 | 15200 | 30400 | |
| {{chembox header}} | 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.
Image:LogEthyleneVaporPressure.png{{Clear}}
== Spectral data ==
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! {{chembox header}} | UV-Vis |
| λmax
| ? nm |
| Extinction coefficient, ε
| ? |
| {{chembox header}} | IR |
|---|
| Major absorption bands
| 974 cm−1 |
| {{chembox header}} | NMR |
| Proton NMR
| |
| Carbon-13 NMR
| |
| Other NMR data
| |
| {{chembox header}} | 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 [https://web.archive.org/web/20020207111330/http://siri.org/msds/index.php SIRI], and follow its directions.
{{Chemical data page general note}}
References
- [http://webbook.nist.gov/chemistry/ NIST Standard Reference Database]
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