Ethylene
- Formula: C2H4
- Molecular weight: 28.0532
- IUPAC Standard InChIKey: VGGSQFUCUMXWEO-UHFFFAOYSA-N
- CAS Registry Number: 74-85-1
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Isotopologues:
- Other names: Ethene; Acetene; Bicarburretted hydrogen; Elayl; Olefiant gas; C2H4; Athylen; Liquid ethyene; UN 1038; UN 1962
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Gas phase thermochemistry data
Go To: Top, IR Spectrum, UV/Visible spectrum, Vibrational and/or electronic energy levels, Gas Chromatography, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled as indicated in comments:
DRB - Donald R. Burgess, Jr.
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | 52.47 | kJ/mol | Review | Chase, 1998 | Data last reviewed in September, 1965 |
ΔfH°gas | 52.4 ± 0.5 | kJ/mol | Review | Manion, 2002 | adopted recommendation of Gurvich, Veyts, et al., 1991; DRB |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°gas | -1411.20 ± 0.30 | kJ/mol | Cm | Rossini and Knowlton, 1937 | Reanalyzed by Cox and Pilcher, 1970, Original value = -1410.97 ± 0.30 kJ/mol; Corresponding ΔfHºgas = 52.52 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS |
Quantity | Value | Units | Method | Reference | Comment |
S°gas,1 bar | 219.32 | J/mol*K | Review | Chase, 1998 | Data last reviewed in September, 1965 |
Constant pressure heat capacity of gas
Cp,gas (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
33.26 | 50. | Thermodynamics Research Center, 1997 | p=1 bar. Recommended entropies and heat capacities are in good agreement with those obtained from other statistical thermodynamics calculations [ Chao J., 1975, Gurvich, Veyts, et al., 1989] as well as with ab initio value of S(298.15 K)=219.14 J/mol*K [ East A.L.L., 1997].; GT |
33.27 | 100. | ||
33.66 | 150. | ||
35.37 | 200. | ||
40.60 | 273.15 | ||
42.90 | 298.15 | ||
43.08 | 300. | ||
53.06 | 400. | ||
62.48 | 500. | ||
70.66 | 600. | ||
77.70 | 700. | ||
83.82 | 800. | ||
89.18 | 900. | ||
93.88 | 1000. | ||
98.00 | 1100. | ||
101.61 | 1200. | ||
104.76 | 1300. | ||
107.53 | 1400. | ||
109.96 | 1500. | ||
114.81 | 1750. | ||
118.37 | 2000. | ||
121.03 | 2250. | ||
123.06 | 2500. | ||
124.62 | 2750. | ||
125.86 | 3000. |
Constant pressure heat capacity of gas
Cp,gas (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
34.66 ± 0.26 | 178.15 | Burcik E.J., 1941 | Other experimental values of heat capacity [ Haas M.E., 1932] are less accurate, see [ Chao J., 1975]. Please also see Eucken A., 1933.; GT |
35.30 ± 0.26 | 192.35 | ||
36.29 ± 0.27 | 210.40 | ||
37.55 ± 0.28 | 230.90 | ||
39.02 ± 0.29 | 250.60 | ||
40.75 ± 0.02 | 270.7 | ||
41.02 ± 0.31 | 271.80 | ||
42.84 ± 0.32 | 293.45 | ||
43.47 ± 0.17 | 300.0 | ||
45.98 ± 0.04 | 320.7 | ||
49.74 ± 0.37 | 367.7 | ||
59.25 ± 0.44 | 463.6 |
Gas Phase Heat Capacity (Shomate Equation)
Cp° = A + B*t + C*t2 + D*t3 +
E/t2
H° − H°298.15= A*t + B*t2/2 +
C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 −
E/(2*t2) + G
Cp = heat capacity (J/mol*K)
H° = standard enthalpy (kJ/mol)
S° = standard entropy (J/mol*K)
t = temperature (K) / 1000.
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Temperature (K) | 298. to 1200. | 1200. to 6000. |
---|---|---|
A | -6.387880 | 106.5104 |
B | 184.4019 | 13.73260 |
C | -112.9718 | -2.628481 |
D | 28.49593 | 0.174595 |
E | 0.315540 | -26.14469 |
F | 48.17332 | -35.36237 |
G | 163.1568 | 275.0424 |
H | 52.46694 | 52.46694 |
Reference | Chase, 1998 | Chase, 1998 |
Comment | Data last reviewed in September, 1965 | Data last reviewed in September, 1965 |
IR Spectrum
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Data compiled by: Coblentz Society, Inc.
Data compiled by: Pamela M. Chu, Franklin R. Guenther, George C. Rhoderick, and Walter J. Lafferty
- gas; IFS66V (Bruker); 3-Term B-H Apodization
0.1250, 0.2410, 0.4820, 0.9640, 1.9290 cm-1 resolution - gas; IFS66V (Bruker); Boxcar Apodization
0.1250, 0.2410, 0.4820, 0.9640, 1.9290 cm-1 resolution - gas; IFS66V (Bruker); Happ Genzel Apodization
0.1250, 0.2410, 0.4820, 0.9640, 1.9290 cm-1 resolution - gas; IFS66V (Bruker); NB Strong Apodization
0.1250, 0.2410, 0.4820, 0.9640, 1.9290 cm-1 resolution - gas; IFS66V (Bruker); Triangular Apodization
0.1250, 0.2410, 0.4820, 0.9640, 1.9290 cm-1 resolution
UV/Visible spectrum
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Spectrum
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Additional Data
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Source | Platt and Price, 1949 |
---|---|
Owner | INEP CP RAS, NIST OSRD Collection (C) 2007 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
Origin | INSTITUTE OF ENERGY PROBLEMS OF CHEMICAL PHYSICS, RAS |
Source reference | RAS UV No. 11951 |
Instrument | n.i.g. |
Melting point | - 169 |
Boiling point | - 103.7 |
Vibrational and/or electronic energy levels
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Takehiko Shimanouchi
Symmetry: D2h Symmetry Number σ = 4
Sym. | No | Approximate | Selected Freq. | Infrared | Raman | Comments | ||||
---|---|---|---|---|---|---|---|---|---|---|
Species | type of mode | Value | Rating | Value | Phase | Value | Phase | |||
ag | 1 | CH2 s-str | 3026 | B | ia | 3026.4 p | gas | |||
ag | 2 | CC str | 1623 | D | ia | 1622.6 p | gas | FR(2ν10) | ||
ag | 3 | CH2 scis | 1342 | B | ia | 1342.2 p | gas | |||
au | 4 | CH2 twist | 1023 | E | ia | ia | OC(ν4+ν6) | |||
b1g | 5 | CH2 a-str | 3103 | B | ia | 3102.5 dp | gas | |||
b1g | 6 | CH2 rock | 1236 | C | ia | 1236 dp | liq. | |||
b1u | 7 | CH2 wag | 949 | A | 949.3 M | gas | ia | |||
b2g | 8 | CH2 wag | 943 | C | ia | 943 dp | liq. | |||
b2u | 9 | CH2 a-str | 3106 | B | 3105.5 S | gas | ia | |||
b2u | 10 | CH2 rock | 826 | A | 826.0 W | gas | ia | |||
b3u | 11 | CH2 s-str | 2989 | A | 2988.66 S | gas | ia | |||
b3u | 12 | CH2 scis | 1444 | B | 1443.5 S | gas | ia | |||
Source: Shimanouchi, 1972
Notes
S | Strong |
M | Medium |
W | Weak |
ia | Inactive |
p | Polarized |
dp | Depolarized |
FR | Fermi resonance with an overtone or a combination tone indicated in the parentheses. |
OC | Frequency estimated from an overtone or a combination tone indicated in the parentheses. |
A | 0~1 cm-1 uncertainty |
B | 1~3 cm-1 uncertainty |
C | 3~6 cm-1 uncertainty |
D | 6~15 cm-1 uncertainty |
E | 15~30 cm-1 uncertainty |
Gas Chromatography
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Kovats' RI, non-polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Capillary | OV-1 | 20. | 166. | Nijs and Jacobs, 1981 | He; Column length: 150. m; Column diameter: 0.50 mm |
Capillary | Squalane | 40. | 175. | Matukuma, 1969 | N2; Column length: 91.4 m; Column diameter: 0.25 mm |
Packed | Squalane | 27. | 177. | Hively and Hinton, 1968 | He, Chromosorb P; Column length: 15. m; Column diameter: 0.25 mm |
Packed | Squalane | 49. | 177. | Hively and Hinton, 1968 | He, Chromosorb P; Column length: 15. m; Column diameter: 0.25 mm |
Packed | Squalane | 67. | 178. | Hively and Hinton, 1968 | He, Chromosorb P; Column length: 15. m; Column diameter: 0.25 mm |
Packed | Squalane | 86. | 178. | Hively and Hinton, 1968 | He, Chromosorb P; Column length: 15. m; Column diameter: 0.25 mm |
Kovats' RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Petrocol DH-100 | 178.1 | Haagen-Smit Laboratory, 1997 | He; Column length: 100. m; Column diameter: 0.2 mm; Program: 5C(10min) => 5C/min => 50C(48min) => 1.5C/min => 195C(91min) |
Capillary | DB-1 | 164. | Hoekman, 1993 | 60. m/0.32 mm/1.0 μm, He; Program: -40 C for 12 min; -40 - 125 C at 3 deg.min; 125-185 C at 6 deg/min; 185 - 220 C at 20 deg/min; hold 220 C for 2 min |
Van Den Dool and Kratz RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Chromosorb 101 | 183. | Voorhees, Hileman, et al., 1975 | 10. K/min; Tstart: 0. C; Tend: 220. C |
Normal alkane RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Petrocol DH | 158. | Supelco, 2012 | 100. m/0.25 mm/0.50 μm, Helium, 20. C @ 15. min, 15. K/min, 220. C @ 30. min |
Capillary | OV-101 | 166. | Zenkevich, 2005 | 25. m/0.20 mm/0.10 μm, N2/He, 6. K/min; Tstart: 50. C; Tend: 250. C |
Capillary | OV-101 | 165. | Chupalov and Zenkevich, 1996 | N2, 3. K/min; Column length: 52. m; Column diameter: 0.26 mm; Tstart: 50. C; Tend: 220. C |
Normal alkane RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Methyl Silicone | 178. | Chen and Feng, 2007 | Program: not specified |
Capillary | Porapack Q | 180. | Zenkevich and Rodin, 2004 | Program: not specified |
Capillary | Methyl Silicone | 166. | Zenkevich, 2000 | Program: not specified |
Capillary | SPB-1 | 165. | Flanagan, Streete, et al., 1997 | 60. m/0.53 mm/5. μm, He; Program: 40C(6min) => 5C/min => 80C => 10C/min => 200C |
Capillary | Polydimethyl siloxanes | 165. | Zenkevich, 1997 | Program: not specified |
Capillary | Polydimethyl siloxanes | 165. | Zenkevich, Chupalov, et al., 1996 | Program: not specified |
Capillary | SPB-1 | 165. | Strete, Ruprah, et al., 1992 | 60. m/0.53 mm/5.0 μm, Helium; Program: 40 0C (6 min) 5 0C/min -> 80 0C 10 0C/min -> 200 0C |
Packed | SE-30 | 188. | Robinson and Odell, 1971 | N2, Chromosorb W; Column length: 6.1 m; Program: 50C910min) => 20C/min => 90(6min) => 10C/min => 150C(hold) |
Packed | Squalane | 180. | Robinson and Odell, 1971 | N2, Embacel; Column length: 3.0 m; Program: 25C(5min) => 2C/min => 35 => 4C/min => 95C(hold) |
References
Go To: Top, Gas phase thermochemistry data, IR Spectrum, UV/Visible spectrum, Vibrational and/or electronic energy levels, Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Chase, 1998
Chase, M.W., Jr.,
NIST-JANAF Themochemical Tables, Fourth Edition,
J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]
Manion, 2002
Manion, J.A.,
Evaluated Enthalpies of Formation of the Stable Closed Shell C1 and C2 Chlorinated Hydrocarbons,
J. Phys. Chem. Ref. Data, 2002, 31, 1, 123-172, https://doi.org/10.1063/1.1420703
. [all data]
Gurvich, Veyts, et al., 1991
Thermodynamic Properties of Individual Substances, 4th edition, Volume 2, Gurvich, L.V.; Veyts, I.V.; Alcock, C.B.;, ed(s)., Hemisphere, New York, 1991. [all data]
Rossini and Knowlton, 1937
Rossini, F.d.; Knowlton, J.W.,
Calorimetric determination of the heats of combustion of ethylene and propylene,
J. Res. NBS, 1937, 19, 249-262. [all data]
Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]
Thermodynamics Research Center, 1997
Thermodynamics Research Center,
Selected Values of Properties of Chemical Compounds., Thermodynamics Research Center, Texas A&M University, College Station, Texas, 1997. [all data]
Chao J., 1975
Chao J.,
Ideal gas thermodynamic properties of ethylene and propylene,
J. Phys. Chem. Ref. Data, 1975, 4, 251-261. [all data]
Gurvich, Veyts, et al., 1989
Gurvich, L.V.; Veyts, I.V.; Alcock, C.B.,
Thermodynamic Properties of Individual Substances, 4th ed.; Vols. 1 and 2, Hemisphere, New York, 1989. [all data]
East A.L.L., 1997
East A.L.L.,
Ab initio statistical thermodynamical models for the computation of third-law entropies,
J. Chem. Phys., 1997, 106, 6655-6674. [all data]
Burcik E.J., 1941
Burcik E.J.,
The vibrational energy levels and specific heat of ethylene,
J. Chem. Phys., 1941, 9, 118-119. [all data]
Haas M.E., 1932
Haas M.E.,
The heat capacity and free energy of formation of ethylene gas,
J. Phys. Chem., 1932, 36, 2127-2132. [all data]
Eucken A., 1933
Eucken A.,
Molar heats and normal frequencies of ethane and ethylene,
Z. Phys. Chem., 1933, B20, 184-194. [all data]
Platt and Price, 1949
Platt, J.R.; Price, W.C.,
J. Chem. Phys., 1949, 17, 466. [all data]
Shimanouchi, 1972
Shimanouchi, T.,
Tables of Molecular Vibrational Frequencies Consolidated Volume I, National Bureau of Standards, 1972, 1-160. [all data]
Nijs and Jacobs, 1981
Nijs, H.H.; Jacobs, P.A.,
On-Line Single Run Analysis of Effluents from a Fischer-Tropsch Reactor,
J. Chromatogr. Sci., 1981, 19, 1, 40-45, https://doi.org/10.1093/chromsci/19.1.40
. [all data]
Matukuma, 1969
Matukuma, A.,
Retention indices of alkanes through C10 and alkenes through C8 and relation between boiling points and retention data,
Gas Chromatogr., Int. Symp. Anal. Instrum. Div Instrum Soc. Amer., 1969, 7, 55-75. [all data]
Hively and Hinton, 1968
Hively, R.A.; Hinton, R.E.,
Variation of the retention index with temperature on squalane substrates,
J. Gas Chromatogr., 1968, 6, 4, 203-217, https://doi.org/10.1093/chromsci/6.4.203
. [all data]
Haagen-Smit Laboratory, 1997
Haagen-Smit Laboratory,
Procedure for the detailed hydrocarbon analysis of gasolines by single column high efficiency (capillary) column gas chromatography, SOP NO. MLD 118, Revision No. 1.1, California Environmental Protection Agency, Air Resources Board, El Monte, California, 1997, 22. [all data]
Hoekman, 1993
Hoekman, S.K.,
Improved gas chromatography procedure for speciated hydrocarbon measurements of vehicle emissions,
J. Chromatogr., 1993, 639, 2, 239-253, https://doi.org/10.1016/0021-9673(93)80260-F
. [all data]
Voorhees, Hileman, et al., 1975
Voorhees, K.J.; Hileman, F.D.; Einhorn, I.N.,
Generation of retention index standards by pyrolysis of hydrocarbons,
Anal. Chem., 1975, 47, 14, 2385-2389, https://doi.org/10.1021/ac60364a035
. [all data]
Supelco, 2012
Supelco, CatalogNo. 24160-U,
Petrocol DH Columns. Catalog No. 24160-U, 2012, retrieved from http://www.sigmaaldrich.com/etc/medialib/docs/Supelco/Datasheet/1/w97949.Par.0001.File.tmp/w97949.pdf. [all data]
Zenkevich, 2005
Zenkevich, I.G.,
Experimentally measured retention indices., 2005. [all data]
Chupalov and Zenkevich, 1996
Chupalov, A.A.; Zenkevich, I.G.,
Chromatographic Characterization of Structural Transformations of Organic Compounds in Diels-Alder Reaction. Aliphatic Dienes and Dienophyls,
Zh. Org. Khim., 1996, 32, 6, 675-684. [all data]
Chen and Feng, 2007
Chen, Y.; Feng, C.,
QSPR study on gas chromatography retention index of some organic pollutants,
Comput. Appl. Chem. (China), 2007, 24, 10, 1404-1408. [all data]
Zenkevich and Rodin, 2004
Zenkevich, I.G.; Rodin, A.A.,
Gas chromatographic identification of some volatile toxic fluorine containing compounds by precalculated retention indices,
J. Ecol. Chem. (Rus.), 2004, 13, 1, 22-28. [all data]
Zenkevich, 2000
Zenkevich, I.G.,
Mutual Correlation between Gas Chromatographic Retention Indices of Unsaturated and Saturated Hydrocarbons found by Molecular Dynamics,
Z. Anal. Chem., 2000, 55, 10, 1091-1097. [all data]
Flanagan, Streete, et al., 1997
Flanagan, R.J.; Streete, P.J.; Ramsey, J.D.,
Volatile Substance Abuse, UNODC Technical Series, No 5, United Nations, Office on Drugs and Crime, Vienna International Centre, PO Box 500, A-1400 Vienna, Austria, 1997, 56, retrieved from http://www.odccp.org/pdf/technicalseries1997-01-011.pdf. [all data]
Zenkevich, 1997
Zenkevich, I.G.,
Influence of the Variations of Dynamics Molecular Parameterts on the Additivity of Chromatigraphic Retention Indices of Products of Organic Reactions Relative to Initial Reagents,
Dokl. Akad. Nauk (Rus.), 1997, 353, 5, 625-627. [all data]
Zenkevich, Chupalov, et al., 1996
Zenkevich, I.G.; Chupalov, A.A.; Herzschuh, R.,
Correlation of the Increments of Gas Chromatographic Retention Indices with the Differences of Innermolecular Energies of Reagents and Products of Chemical Reactions,
Zh. Org. Khim. (Rus.), 1996, 32, 11, 1685-1691. [all data]
Strete, Ruprah, et al., 1992
Strete, P.J.; Ruprah, M.; Ramsey, J.D.; Flanagan, R.J.,
Detection and identification of volatile substances by headspace capillary gas chromatography to aid the diagnosis of acute poisoning,
Analyst, 1992, 117, 7, 1111-1127, https://doi.org/10.1039/an9921701111
. [all data]
Robinson and Odell, 1971
Robinson, P.G.; Odell, A.L.,
A system of standard retention indices and its uses. The characterisation of stationary phases and the prediction of retention indices,
J. Chromatogr., 1971, 57, 1-10, https://doi.org/10.1016/0021-9673(71)80001-8
. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, IR Spectrum, UV/Visible spectrum, Vibrational and/or electronic energy levels, Gas Chromatography, References
- Symbols used in this document:
Cp,gas Constant pressure heat capacity of gas S°gas,1 bar Entropy of gas at standard conditions (1 bar) ΔcH°gas Enthalpy of combustion of gas at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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