Benzene, (1-methylpropyl)-
- Formula: C10H14
- Molecular weight: 134.2182
- IUPAC Standard InChIKey: ZJMWRROPUADPEA-UHFFFAOYSA-N
- CAS Registry Number: 135-98-8
- 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. - Species with the same structure:
- Stereoisomers:
- Other names: Benzene, sec-butyl-; sec-Butylbenzene; 2-Phenylbutane; (1-Methylpropyl)benzene; Secondary butylbenzene; UN 2709; s-Butylbenzene; α-methylpropylbenzene
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Gas phase thermochemistry data
Go To: Top, Condensed phase thermochemistry data, Phase change data, Henry's Law data, Gas phase ion energetics data, 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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -17.4 ± 1.4 | kJ/mol | Ccb | Prosen, Johnson, et al., 1946 |
Condensed phase thermochemistry data
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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 as indicated in comments:
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 |
---|---|---|---|---|---|
ΔfH°liquid | -66. ± 1. | kJ/mol | Ccb | Prosen, Johnson, et al., 1946 | ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -5869.5 ± 1.1 | kJ/mol | Ccb | Prosen, Johnson, et al., 1946 | Corresponding ΔfHºliquid = -66.40 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS |
Constant pressure heat capacity of liquid
Cp,liquid (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
241.7 | 293.74 | Andolenko and Grigor'ev, 1979 | T = 294 to 430 K. Unsmoothed experimental datum given as 1.801 kJ/kg*K.; DH |
Phase change data
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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 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
DRB - Donald R. Burgess, Jr.
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 446. ± 2. | K | AVG | N/A | Average of 40 out of 42 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 197.85 | K | N/A | Birch, Dean, et al., 1949 | Uncertainty assigned by TRC = 0.2 K; TRC |
Tfus | 199.76 | K | N/A | Birch, Dean, et al., 1949 | Uncertainty assigned by TRC = 0.2 K; TRC |
Tfus | 197.68 | K | N/A | Streiff, Murphy, et al., 1947 | Uncertainty assigned by TRC = 0.04 K; TRC |
Tfus | 197.46 | K | N/A | Boord, Greenlee, et al., 1946 | Uncertainty assigned by TRC = 0.1 K; TRC |
Tfus | 197. | K | N/A | Anonymous, 1943 | Uncertainty assigned by TRC = 0.7 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 47.99 | kJ/mol | N/A | Majer and Svoboda, 1985 | |
ΔvapH° | 48.1 | kJ/mol | N/A | Ru«7825»icka, Zábranský, et al., 1994 | AC |
ΔvapH° | 49.5 | kJ/mol | N/A | Reid, 1972 | AC |
ΔvapH° | 48.6 | kJ/mol | N/A | Prosen, Johnson, et al., 1946 | DRB |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
45.7 ± 0.2 | 340. | EB | Steele, Chirico, et al., 2002 | Based on data from 335. to 491. K.; AC |
43.2 ± 0.2 | 380. | EB | Steele, Chirico, et al., 2002 | Based on data from 335. to 491. K.; AC |
40.6 ± 0.3 | 420. | EB | Steele, Chirico, et al., 2002 | Based on data from 335. to 491. K.; AC |
37.8 ± 0.5 | 460. | EB | Steele, Chirico, et al., 2002 | Based on data from 335. to 491. K.; AC |
50.6 | 258. | N/A | Kasehgari, Mokbel, et al., 1993 | Based on data from 243. to 373. K.; AC |
42.8 | 399. | A | Stephenson and Malanowski, 1987 | Based on data from 384. to 448. K.; AC |
44.0 | 375. | N/A | Forziati, Norris, et al., 1949 | Based on data from 368. to 448. K.; 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 |
---|---|---|---|---|
360.27 to 447.51 | 4.07587 | 1540.174 | -68.049 | Forziati, Norris, et al., 1949, 2 |
Henry's Law data
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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: Rolf Sander
Henry's Law constant (water solution)
kH(T) = k°H exp(d(ln(kH))/d(1/T) ((1/T) - 1/(298.15 K)))
k°H = Henry's law constant for solubility in water at 298.15 K (mol/(kg*bar))
d(ln(kH))/d(1/T) = Temperature dependence constant (K)
k°H (mol/(kg*bar)) | d(ln(kH))/d(1/T) (K) | Method | Reference |
---|---|---|---|
0.072 | L | N/A | |
0.087 | V | N/A |
Gas phase ion energetics data
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Henry's Law data, 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 evaluated as indicated in comments:
L - Sharon G. Lias
Data compiled as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 8.68 ± 0.01 | eV | N/A | N/A | L |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
8.68 | EI | McLoughlin, Morrison, et al., 1979 | LLK |
8.68 ± 0.01 | PI | Watanabe, Nakayama, et al., 1962 | RDSH |
8.68 ± 0.01 | PI | Price, Bralsford, et al., 1959 | RDSH |
8.66 ± 0.05 | PE | Nagy-Felsobuki and Peel, 1979 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C7H7+ | 10.00 | C3H7 | EI | McLoughlin, Morrison, et al., 1979 | LLK |
C8H9+ | 9.93 | C2H5 | EI | McLoughlin, Morrison, et al., 1979 | LLK |
IR Spectrum
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Data compiled by: Coblentz Society, Inc.
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Mass spectrum (electron ionization)
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Henry's Law data, Gas phase ion energetics 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
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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. |
---|---|
Origin | Japan AIST/NIMC Database- Spectrum MS-NW-4626 |
NIST MS number | 228188 |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Henry's Law data, Gas phase ion energetics 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.
Prosen, Johnson, et al., 1946
Prosen, E.J.; Johnson, W.H.; Rossini, F.D.,
Heats of combustion and formation at 25°C of the alkylbenzenes through C10H14, and of the higher normal monoalkylbenzenes,
J. Res. NBS, 1946, 36, 455-461. [all data]
Andolenko and Grigor'ev, 1979
Andolenko, R.A.; Grigor'ev, B.A.,
Investigation of isobaric heat capacity of aromatic hydrocarbons at atmospheric pressure, Iaz. Vyssh. Ucheb. Zaved.,
Neft i Gaz (11), 1979, 78, 90. [all data]
Birch, Dean, et al., 1949
Birch, S.F.; Dean, R.A.; Fidler, F.A.; Lowry, R.A.,
The preparation of the c(10) monocyclic aromatic hydrocarbons,
J. Am. Chem. Soc., 1949, 71, 1362. [all data]
Streiff, Murphy, et al., 1947
Streiff, A.J.; Murphy, E.T.; Cahill, J.C.; Flanagan, H.F.; Sedlak, V.A.; Willingham, C.B.; Rossini, F.D.,
Purification, Purity, and Freezing Points of 8 Nonanes, 11 Alkyl- cyclopentanes, 6 Alkylcyclohexanes, and 4 Butylbenzenes of the API-NBS Series,
J. Res. Natl. Bur. Stand. (U. S.), 1947, 38, 53. [all data]
Boord, Greenlee, et al., 1946
Boord, C.E.; Greenlee, K.W.; Perilstein, W.L.,
The Synthesis, Purification and Prop. of Hydrocarbons of Low Mol. Weight, Am. Pet. Inst. Res. Proj. 45, Eighth Annu. Rep., Ohio State Univ., June 30, 1946. [all data]
Anonymous, 1943
Anonymous, R.,
, Sunbury Rep. No. 2176, Anglo-Iranian Oil Co., 1943. [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]
Ru«7825»icka, Zábranský, et al., 1994
Ru«7825»icka, Vlastimil; Zábranský, Milan; Ru«7825»icka, Kvetoslav; Majer, Vladimír,
Vapor pressures for a group of high-boiling alkylbenzenes under environmental conditions,
Thermochimica Acta, 1994, 245, 121-144, https://doi.org/10.1016/0040-6031(94)85073-9
. [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]
Steele, Chirico, et al., 2002
Steele, W.V.; Chirico, R.D.; Knipmeyer, S.E.; Nguyen, A.,
Vapor Pressure, Heat Capacity, and Density along the Saturation Line: Measurements for Benzenamine, Butylbenzene, sec -Butylbenzene, tert -Butylbenzene, 2,2-Dimethylbutanoic Acid, Tridecafluoroheptanoic Acid, 2-Butyl-2-ethyl-1,3-propanediol, 2,2,4-Trimethyl-1,3-pentanediol, and 1-Chloro-2-propanol,
J. Chem. Eng. Data, 2002, 47, 4, 648-666, https://doi.org/10.1021/je010083e
. [all data]
Kasehgari, Mokbel, et al., 1993
Kasehgari, H.; Mokbel, I.; Viton, C.; Jose, J.,
Vapor pressure of 11 alkylbenzenes in the range 10-3 -- 280 torr, correlation by equation of state,
Fluid Phase Equilibria, 1993, 87, 1, 133-152, https://doi.org/10.1016/0378-3812(93)85022-E
. [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]
Forziati, Norris, et al., 1949, 2
Forziati, A.F.; Norris, W.R.; Rossini, F.D.,
Vapor Pressures and Boiling Points of Sixty API-NBS Hydrocarbons,
J. Res. Natl. Bur. Stand. (U.S.), 1949, 43, 6, 555-563, https://doi.org/10.6028/jres.043.050
. [all data]
McLoughlin, Morrison, et al., 1979
McLoughlin, R.G.; Morrison, J.D.; Traeger, J.C.,
Photoionization of the C-1 - C-4 monosubstituted alkyl benzenes: Thermochemistry of [C7H7]+ and [C8H9]+ formation,
Org. Mass Spectrom., 1979, 14, 104. [all data]
Watanabe, Nakayama, et al., 1962
Watanabe, K.; Nakayama, T.; Mottl, J.,
Ionization potentials of some molecules,
J. Quant. Spectry. Radiative Transfer, 1962, 2, 369. [all data]
Price, Bralsford, et al., 1959
Price, W.C.; Bralsford, R.; Harris, P.V.; Ridley, R.G.,
Ultra-violet spectra and ionization potentials of hydrocarbon molecules,
Spectrochim. Acta, 1959, 14, 45. [all data]
Nagy-Felsobuki and Peel, 1979
Nagy-Felsobuki, E.; Peel, J.B.,
Photoelectron spectroscopic studies of the butylbenzenes,
J. Electron Spectrosc. Relat. Phenom., 1979, 16, 397. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Henry's Law data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), References
- Symbols used in this document:
AE Appearance energy Cp,liquid Constant pressure heat capacity of liquid IE (evaluated) Recommended ionization energy Tboil Boiling point Tfus Fusion (melting) point d(ln(kH))/d(1/T) Temperature dependence parameter for Henry's Law constant k°H Henry's Law constant at 298.15K ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions 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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