2-Pentene, 2,4,4-trimethyl-
- Formula: C8H16
- Molecular weight: 112.2126
- IUPAC Standard InChIKey: LAAVYEUJEMRIGF-UHFFFAOYSA-N
- CAS Registry Number: 107-40-4
- 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. - Other names: Diisobutylene; 2,2,4-Trimethyl-3-pentene; 2,4,4-Trimethyl-2-pentene; (CH3)3CCH=C(CH3)2; 2,4,4-Trimethylpent-2-ene
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Phase change data
Go To: Top, 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
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 378. ± 1. | K | AVG | N/A | Average of 6 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 166.790 | K | N/A | Streiff, Zimmerman, et al., 1948 | Uncertainty assigned by TRC = 0.05 K; TRC |
Tfus | 166.820 | K | N/A | Streiff, Zimmerman, et al., 1948 | Uncertainty assigned by TRC = 0.02 K; TRC |
Tfus | 166.64 | K | N/A | Howard, Mears, et al., 1947 | Uncertainty assigned by TRC = 0.1 K; TRC |
Tfus | 166.65 | K | N/A | Tongberg, Pickens, et al., 1932 | Uncertainty assigned by TRC = 0.2 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 166. | K | N/A | Parks, Todd, et al., 1936 | Uncertainty assigned by TRC = 2. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 9.39 | kcal/mol | N/A | Reid, 1972 | AC |
ΔvapH° | 8.94 | kcal/mol | V | Camin and Rossini, 1960 | ALS |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
8.53 | 334. | A | Stephenson and Malanowski, 1987 | Based on data from 319. to 380. K.; AC |
8.89 | 320. | MM | Camin and Rossini, 1960, 2 | Based on data from 305. to 378. K.; AC |
8.42 | 374.6 | V | Holmes and Tyrrall, 1956 | ALS |
7.62 | 374.3 | V | Mathews and Fehlandt, 1931 | ALS |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
1.62 | 166. | Domalski and Hearing, 1996 | AC |
References
Go To: Top, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Streiff, Zimmerman, et al., 1948
Streiff, A.J.; Zimmerman, J.C.; Soule, L.F.; Butt, M.T.; Sedlak, V.A.; Willingham, C.B.; Rossini, F.D.,
Purification, Purity, and Freezing Points of 30 Hydrocarbons of the API-Standard and API-NBS Series,
J. Res. Natl. Bur. Stand. (U. S.), 1948, 41, 323. [all data]
Howard, Mears, et al., 1947
Howard, F.L.; Mears, T.W.; Fookson, A.; Pomerantz, P.; Brooks, D.B.,
Preparation and physical properties of several aliphatic hydrocarbons and intermediates,
J. Res. Natl. Bur. Stand. (U. S.), 1947, 38, 365. [all data]
Tongberg, Pickens, et al., 1932
Tongberg, C.O.; Pickens, J.D.; Fenske, M.R.; Whitmore, F.C.,
The Isomers in "Diisobutylene". II.,
J. Am. Chem. Soc., 1932, 54, 3706-10. [all data]
Parks, Todd, et al., 1936
Parks, G.S.; Todd, S.S.; Shomate, C.H.,
Thermal data on organic compounds. XVII. Some heat capacity, entropy and free energy data for five higher olefins,
J. Am. Chem. Soc., 1936, 58, 2505. [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]
Camin and Rossini, 1960
Camin, D.L.; Rossini, F.D.,
Physical properties of to selected C7 and C8 alkene hydrocarbons,
J. Chem. Eng. Data, 1960, 5, 368. [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]
Camin and Rossini, 1960, 2
Camin, D.L.; Rossini, F.D.,
Physical Properties of 16 Selected C 7 and C 8 Alkene Hydrocarbons.,
J. Chem. Eng. Data, 1960, 5, 3, 368-372, https://doi.org/10.1021/je60007a037
. [all data]
Holmes and Tyrrall, 1956
Holmes, W.S.; Tyrrall, E.,
Entropy of vaporization and molecular rotation in the liquid state,
Chem. Ind. (London), 1956, 662-663. [all data]
Mathews and Fehlandt, 1931
Mathews, J.H.; Fehlandt, P.R.,
The heats of vaporization of some organic compounds,
J. Am. Chem. Soc., 1931, 53, 3212-32. [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]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Tboil Boiling point Tfus Fusion (melting) point Ttriple Triple point temperature ΔfusH Enthalpy of fusion ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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