Benzene, (1-methylethyl)-
- Formula: C9H12
- Molecular weight: 120.1916
- IUPAC Standard InChIKey: RWGFKTVRMDUZSP-UHFFFAOYSA-N
- CAS Registry Number: 98-82-8
- 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: Cumene; Cumol; Isopropylbenzene; 2-Phenylpropane; (1-Methylethyl)benzene; Isopropylbenzol; Benzene, isopropyl-; Cumeen; Isopropilbenzene; Isopropylbenzeen; Propane, 2-phenyl-; 2-Fenilpropano; 2-Fenyl-propaan; Rcra waste number U055; UN 1918; (Methylethyl)benzene; Benzene, i-propyl-; i-Propylbenzene; NSC 8776; iso-propylbenzene (cumene); (1-methylethyl)benzene (cumene)
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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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
BS - Robert L. Brown and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
DH - Eugene S. Domalski and Elizabeth D. Hearing
CAL - James S. Chickos, William E. Acree, Jr., Joel F. Liebman, Students of Chem 202 (Introduction to the Literature of Chemistry), University of Missouri -- St. Louis
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 425. ± 1. | K | AVG | N/A | Average of 58 out of 64 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 177.0 ± 0.7 | K | AVG | N/A | Average of 13 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 177.13 | K | N/A | Kishimoto, Suga, et al., 1973 | Uncertainty assigned by TRC = 0.01 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 631.0 ± 0.5 | K | N/A | Tsonopoulos and Ambrose, 1995 | |
Tc | 631.1 | K | N/A | Ambrose and Grant, 1957 | Uncertainty assigned by TRC = 0.15 K; TRC |
Tc | 624.55 | K | N/A | Glaser and Ruland, 1957 | Uncertainty assigned by TRC = 2. K; TRC |
Tc | 635.9 | K | N/A | Altschul, 1893 | Uncertainty assigned by TRC = 4. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 32.1 ± 0.4 | bar | N/A | Tsonopoulos and Ambrose, 1995 | |
Pc | 32.09 | bar | N/A | Ambrose, Broderick, et al., 1967 | Uncertainty assigned by TRC = 0.06 bar; TRC |
Pc | 27.8644 | bar | N/A | Glaser and Ruland, 1957 | Uncertainty assigned by TRC = 1.5199 bar; TRC |
Pc | 31.60 | bar | N/A | Altschul, 1893 | Uncertainty assigned by TRC = 0.0588 bar; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ρc | 2.32 | mol/l | N/A | Hales and Townsend, 1972 | Uncertainty assigned by TRC = 0.008 mol/l; from fit of obs data to 490 K to Rideal's equation; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 44. ± 5. | kJ/mol | AVG | N/A | Average of 9 values; Individual data points |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
41.2 | 364. | N/A | Cepeda, Gonzalez, et al., 1989 | Based on data from 349. to 426. K.; AC |
42.1 | 354. | A | Stephenson and Malanowski, 1987 | Based on data from 339. to 433. K.; AC |
41.9 | 358. | MM | Forziati, Norris, et al., 1949 | Based on data from 343. to 426. K. See also Willingham, Taylor, et al., 1945.; AC |
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 |
---|---|---|---|---|
343.17 to 426.52 | 4.05419 | 1455.811 | -65.948 | Williamham, Taylor, et al., 1945 |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
7.326 | 177.13 | Kishimoto, Suga, et al., 1973, 2 | DH |
7.32 | 177.1 | Kishimoto, Suga, et al., 1973, 2 | AC |
Entropy of fusion
ΔfusS (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
41.36 | 177.13 | Kishimoto, Suga, et al., 1973, 2 | DH |
41.37 | 177.1 | Kishimoto, Suga, et al., 1973 | CAL |
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.
Kishimoto, Suga, et al., 1973
Kishimoto, K.; Suga, H.; Seki, S.,
Calorimetric Study of the Glassy State. VIII. Heat Capacity and Relaxational Phenomena of Isopropylbenzene,
Bull. Chem. Soc. Japan, 1973, 46, 10, 3020, https://doi.org/10.1246/bcsj.46.3020
. [all data]
Tsonopoulos and Ambrose, 1995
Tsonopoulos, C.; Ambrose, D.,
Vapor-Liquid Critical Properties of Elements and Compounds. 3. Aromatic Hydrocarbons,
J. Chem. Eng. Data, 1995, 40, 547-558. [all data]
Ambrose and Grant, 1957
Ambrose, D.; Grant, D.G.,
The Critical Temperatures of Some Hydrocarbons and Pyridine Bases,
Trans. Faraday Soc., 1957, 53, 771. [all data]
Glaser and Ruland, 1957
Glaser, F.; Ruland, H.,
Untersuchungsen über dampfdruckkurven und kritische daten einiger technisch wichtiger organischer substanzen,
Chem. Ing. Techn., 1957, 29, 772. [all data]
Altschul, 1893
Altschul, M.,
The critical values of some organic compounds,
Z. Phys. Chem., Stoechiom. Verwandtschaftsl., 1893, 11, 577. [all data]
Ambrose, Broderick, et al., 1967
Ambrose, D.; Broderick, B.E.; Townsend, R.,
The Vapour Pressures above the Normal Boiling Point and the Critical Pressures of Some Aromatic Hydrocarbons,
J. Chem. Soc. , 1967, 1967, 1967, 633-41. [all data]
Hales and Townsend, 1972
Hales, J.L.; Townsend, R.,
Liquid Densities from 293 to 490 K of Nine Aromatic Hydrocarbons,
J. Chem. Thermodyn., 1972, 4, 763-72. [all data]
Cepeda, Gonzalez, et al., 1989
Cepeda, Emilio; Gonzalez, Cristina; Resa, Jose M.,
Isobaric vapor-liquid equilibrium for the cumene-phenol system,
J. Chem. Eng. Data, 1989, 34, 3, 270-273, https://doi.org/10.1021/je00057a004
. [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]
Forziati, Norris, et al., 1949
Forziati, Alphonse F.; Norris, William R.; Rossini, Frederick D.,
Vapor pressures and boiling points of sixty API-NBS hydrocarbons,
J. RES. NATL. BUR. STAN., 1949, 43, 6, 555-17, https://doi.org/10.6028/jres.043.050
. [all data]
Willingham, Taylor, et al., 1945
Willingham, C.B.; Taylor, W.J.; Pignocco, J.M.; Rossini, F.D.,
Vapor pressures and boiling points of some paraffin, alkylcyclopentane, alkylcyclohexane, and alkylbenzene hydrocarbons,
J. RES. NATL. BUR. STAN., 1945, 35, 3, 219-17, https://doi.org/10.6028/jres.035.009
. [all data]
Williamham, Taylor, et al., 1945
Williamham, C.B.; Taylor, W.J.; Pignocco, J.M.; Rossini, F.D.,
Vapor Pressures and Boiling Points of Some Paraffin, Alkylcyclopentane, Alkylcyclohexane, and Alkylbenzene Hydrocarbons,
J. Res. Natl. Bur. Stand. (U.S.), 1945, 35, 3, 219-244, https://doi.org/10.6028/jres.035.009
. [all data]
Kishimoto, Suga, et al., 1973, 2
Kishimoto, K.; Suga, H.; Syuzo, S.,
Calorimetric study of the glassy state. VIII. Heat capacity and relaxational phenomena of isopropylbenzene,
Bull. Chem. Soc. Japan, 1973, 46, 3020-3031. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Pc Critical pressure Tboil Boiling point Tc Critical temperature Tfus Fusion (melting) point Ttriple Triple point temperature 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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