2-Butene, (Z)-
- Formula: C4H8
- Molecular weight: 56.1063
- IUPAC Standard InChIKey: IAQRGUVFOMOMEM-ARJAWSKDSA-N
- CAS Registry Number: 590-18-1
- 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. - Stereoisomers:
- Other names: (Z)-2-Butene; cis-Butene; cis-2-Butylene; cis-1,2-Dimethylethylene; cis-2-Butene; (Z)-2-C4H8; (2Z)-2-Butene; 2-Butene, cis-; Butene-2, cis-; 2-Butene, (2Z)-; (Z)-but-2-ene
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Phase change data
Go To: Top, IR Spectrum, Mass spectrum (electron ionization), 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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 276.84 ± 0.08 | K | AVG | N/A | Average of 7 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 133.85 | K | N/A | Kistiakowsky, Ruhoff, et al., 1935 | Uncertainty assigned by TRC = 0.5 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 134.26 | K | N/A | Chao, Hall, et al., 1983 | Uncertainty assigned by TRC = 0.02 K; TRC |
Ttriple | 134.26 | K | N/A | Scott, Ferguson, et al., 1944 | Uncertainty assigned by TRC = 0.02 K; TRC |
Ttriple | 133.8 | K | N/A | Todd and Parks, 1936 | Uncertainty assigned by TRC = 0.2 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 435.5 ± 0.1 | K | N/A | Tsonopoulos and Ambrose, 1996 | |
Tc | 435.6 | K | N/A | Majer and Svoboda, 1985 | |
Tc | 435.55 | K | N/A | Ambrose, Cox, et al., 1960 | Uncertainty assigned by TRC = 0.3 K; Visual, PRT, IPTS-48; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 42.1 ± 0.5 | bar | N/A | Tsonopoulos and Ambrose, 1996 | |
Quantity | Value | Units | Method | Reference | Comment |
Vc | 0.2338 | l/mol | N/A | Tsonopoulos and Ambrose, 1996 | |
Quantity | Value | Units | Method | Reference | Comment |
ρc | 4.28 ± 0.05 | mol/l | N/A | Tsonopoulos and Ambrose, 1996 | |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 22.7 | kJ/mol | N/A | Majer and Svoboda, 1985 | |
ΔvapH° | 22.1 | kJ/mol | N/A | Reid, 1972 | AC |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
23.34 | 276.9 | N/A | Majer and Svoboda, 1985 | |
24.4 | 275. | A | Stephenson and Malanowski, 1987 | Based on data from 221. to 290. K.; AC |
24.0 | 291. | A | Stephenson and Malanowski, 1987 | Based on data from 276. to 325. K.; AC |
23.6 | 339. | A | Stephenson and Malanowski, 1987 | Based on data from 324. to 386. K.; AC |
23.6 | 398. | A | Stephenson and Malanowski, 1987 | Based on data from 383. to 431. K.; AC |
22.5 | 246. | C | Scott, Ferguson, et al., 1944, 2 | AC |
22.47 | 246. | C | Scott, Ferguson, et al., 1944 | ALS |
24.31 | 276.73 | V | Kistiakowsky, Ruhoff, et al., 1935, 2 | At 355 °K; ALS |
25.3 | 252. | N/A | Hopkins, 1921 | Based on data from 195. to 267. K. See also Boublik, Fried, et al., 1984.; AC |
Enthalpy of vaporization
ΔvapH =
A exp(-βTr) (1 − Tr)β
ΔvapH =
Enthalpy of vaporization (at saturation pressure)
(kJ/mol)
Tr = reduced temperature (T / Tc)
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Temperature (K) | A (kJ/mol) | β | Tc (K) | Reference | Comment |
---|---|---|---|---|---|
246. to 292. | 36.37 | 0.2696 | 435.6 | Majer and Svoboda, 1985 |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (bar)
T = temperature (K)
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Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
203.06 to 295.91 | 3.98744 | 957.06 | -36.504 | Scott, Ferguson, et al., 1944 | Coefficents calculated by NIST from author's data. |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
7.309 | 134.26 | Chao, Hall, et al., 1983, 2 | DH |
7.3092 | 134.26 | Scott, Ferguson, et al., 1944 | DH |
7.31 | 134.3 | Domalski and Hearing, 1996 | AC |
7.318 | 133.8 | Todd and Parks, 1936, 2 | DH |
Entropy of fusion
ΔfusS (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
54.4 | 134.26 | Chao, Hall, et al., 1983, 2 | DH |
54.44 | 134.26 | Scott, Ferguson, et al., 1944 | DH |
54.69 | 133.8 | Todd and Parks, 1936, 2 | DH |
IR Spectrum
Go To: Top, Phase change data, Mass spectrum (electron ionization), References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Coblentz Society, Inc.
Gas Phase Spectrum
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Notice: Except where noted, spectra from this collection were measured on dispersive instruments, often in carefully selected solvents, and hence may differ in detail from measurements on FTIR instruments or in other chemical environments. More information on the manner in which spectra in this collection were collected can be found here.
Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.
Additional Data
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Owner | Copyright (C) 1987 by the Coblentz Society Collection (C) 2018 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | DOW CHEMICAL COMPANY |
Source reference | COBLENTZ NO. 8864 |
Date | 1964 |
Name(s) | (2Z)-2-butene |
State | GAS (150 mmHg, N2 ADDED, TOTAL PRESSURE 600 mmHg) |
Instrument | DOW KBr FOREPRISM-GRATING |
Instrument parameters | GRATING CHANGED AT 5.0, 7.5, 15.0 MICRON |
Path length | 5 CM |
Resolution | 2 |
Sampling procedure | TRANSMISSION |
Data processing | DIGITIZED BY COBLENTZ SOCIETY (BATCH II) FROM HARD COPY |
Mass spectrum (electron ionization)
Go To: Top, Phase change data, IR Spectrum, References, Notes
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
Spectrum
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Additional Data
View image of digitized spectrum (can be printed in landscape orientation).
Due to licensing restrictions, this spectrum cannot be downloaded.
Owner | NIST Mass Spectrometry Data Center Collection (C) 2014 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
NIST MS number | 18914 |
References
Go To: Top, Phase change data, IR Spectrum, Mass spectrum (electron ionization), Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Kistiakowsky, Ruhoff, et al., 1935
Kistiakowsky, G.B.; Ruhoff, J.R.; Smith, H.A.; Vaughan, W.E.,
Heats of Organic Reactions II. Hydrogenation of Some Simpler Olefinic Hydrocarbons,
J. Am. Chem. Soc., 1935, 57, 876-82. [all data]
Chao, Hall, et al., 1983
Chao, J.; Hall, K.R.; Yao, J.M.,
Thermodynamic Properties of Simple Alkenes,
Thermochim. Acta, 1983, 64, 285. [all data]
Scott, Ferguson, et al., 1944
Scott, R.B.; Ferguson, W.J.; Brickwedde, F.G.,
Thermodynamic properties of cis-2-butene from 15° to 1,500 K,
J. Res. NBS, 1944, 33, 1-20. [all data]
Todd and Parks, 1936
Todd, S.S.; Parks, G.S.,
Thermal Data on Organic Compounds XV. Some Heat Capacity, Entropy and Free Energy Data for the Isomeric Butenes,
J. Am. Chem. Soc., 1936, 58, 134. [all data]
Tsonopoulos and Ambrose, 1996
Tsonopoulos, C.; Ambrose, D.,
Vapor-Liquid Critical Properties of Elements and Compounds. 6. Unsaturated Aliphatic Hydrocarbons,
J. Chem. Eng. Data, 1996, 41, 645-656. [all data]
Majer and Svoboda, 1985
Majer, V.; Svoboda, V.,
Enthalpies of Vaporization of Organic Compounds: A Critical Review and Data Compilation, Blackwell Scientific Publications, Oxford, 1985, 300. [all data]
Ambrose, Cox, et al., 1960
Ambrose, D.; Cox, J.D.; Townsend, R.,
The critical temperatures of forty organic compounds,
Trans. Faraday Soc., 1960, 56, 1452. [all data]
Reid, 1972
Reid, Robert C.,
Handbook on vapor pressure and heats of vaporization of hydrocarbons and related compounds, R. C. Wilhort and B. J. Zwolinski, Texas A Research Foundation. College Station, Texas(1971). 329 pages.$10.00,
AIChE J., 1972, 18, 6, 1278-1278, https://doi.org/10.1002/aic.690180637
. [all data]
Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw,
Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2
. [all data]
Scott, Ferguson, et al., 1944, 2
Scott, R.B.; Ferguson, W.J.; Brickwedde, F.G.,
Thermodynamic properties of cis-2-butene from 15 degrees to 1,500 degrees K,
J. RES. NATL. BUR. STAN., 1944, 33, 1, 1-17, https://doi.org/10.6028/jres.033.001
. [all data]
Kistiakowsky, Ruhoff, et al., 1935, 2
Kistiakowsky, G.B.; Ruhoff, J.R.; Smith, H.A.; Vaughan, W.E.,
Heats of organic reactions. II. Hydrogenation of some simpler olefinic hydrocarbons,
J. Am. Chem. Soc., 1935, 57, 876-882. [all data]
Hopkins, 1921
Hopkins, O.P.,
THE CHEMICAL INDUSTRY AND TRADE OF ENGLAND.,
J. Ind. Eng. Chem., 1921, 13, 3, 189-197, https://doi.org/10.1021/ie50135a007
. [all data]
Boublik, Fried, et al., 1984
Boublik, T.; Fried, V.; Hala, E.,
The Vapour Pressures of Pure Substances: Selected Values of the Temperature Dependence of the Vapour Pressures of Some Pure Substances in the Normal and Low Pressure Region, 2nd ed., Elsevier, New York, 1984, 972. [all data]
Chao, Hall, et al., 1983, 2
Chao, J.; Hall, K.R.; Yao, J.M.,
Thermodynamic properties of simple alkenes,
Thermochim. Acta, 1983, 64(3), 285-303. [all data]
Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D.,
Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III,
J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985
. [all data]
Todd and Parks, 1936, 2
Todd, S.S.; Parks, G.S.,
Thermal data on organic compounds. XV. Some heat capacity, entropy and free energy data for the isomeric butenes,
J. Am. Chem. Soc., 1936, 58, 134-137. [all data]
Notes
Go To: Top, Phase change data, IR Spectrum, Mass spectrum (electron ionization), References
- Symbols used in this document:
Pc Critical pressure Tboil Boiling point Tc Critical temperature Tfus Fusion (melting) point Ttriple Triple point temperature Vc Critical volume ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions ρc Critical density - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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