Pentane, 1-bromo-
- Formula: C5H11Br
- Molecular weight: 151.045
- IUPAC Standard InChIKey: YZWKKMVJZFACSU-UHFFFAOYSA-N
- CAS Registry Number: 110-53-2
- 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: n-Amyl bromide; n-Pentyl bromide; Amyl bromide; Pentyl bromide; 1-Bromopentane; 1-Pentyl bromide; n-C5H11Br
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Condensed phase thermochemistry data
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 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 | -40.72 ± 0.35 | kcal/mol | Ccr | Bjellerup, 1961 | ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -805.30 ± 0.34 | kcal/mol | Ccr | Bjellerup, 1961 | ALS |
Quantity | Value | Units | Method | Reference | Comment |
S°liquid | 97.220 | cal/mol*K | N/A | Deese, 1931 | Extrapolation below 100 K, 56.82 J/mol*K.; DH |
Constant pressure heat capacity of liquid
Cp,liquid (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
52.51 | 298.15 | Shehatta, 1993 | DH |
41.80 | 206.6 | Kushner, Crowe, et al., 1950 | T = 122 to 207 K. Value is unsmoothed experimental datum.; DH |
41.011 | 290.7 | Deese, 1931 | T = 96 to 291 K. Value is unsmoothed experimental datum.; DH |
Phase change data
Go To: Top, Condensed phase thermochemistry 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 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
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 | 399. ± 10. | K | AVG | N/A | Average of 9 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 185.2 | K | N/A | Kushner, Crowe, et al., 1950, 2 | Uncertainty assigned by TRC = 0.2 K; TRC |
Tfus | 184.8 | K | N/A | Boord, Greenlee, et al., 1946 | Uncertainty assigned by TRC = 5. K; TRC |
Tfus | 178.48 | K | N/A | Mair, 1932 | Uncertainty assigned by TRC = 0.2 K; TRC |
Tfus | 185.1 | K | N/A | Deese, 1931, 2 | Uncertainty assigned by TRC = 0.2 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 9.85 ± 0.09 | kcal/mol | AVG | N/A | Average of 6 values; Individual data points |
Reduced pressure boiling point
Tboil (K) | Pressure (atm) | Reference | Comment |
---|---|---|---|
294.2 | 0.013 | Weast and Grasselli, 1989 | BS |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
8.368 | 402.9 | N/A | Majer and Svoboda, 1985 | |
9.80 | 308. | A,EST | Stephenson and Malanowski, 1987 | Based on data from 293. to 443. K. See also Li and Rossini, 1961 and Dykyj, 1972.; AC |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
2.7402 | 185.1 | Kushner, Crowe, et al., 1950 | DH |
3.435 | 185.1 | Domalski and Hearing, 1996 | AC |
3.4331 | 185.1 | Deese, 1931 | DH |
Entropy of fusion
ΔfusS (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
14.8 | 185.1 | Kushner, Crowe, et al., 1950 | DH |
18.55 | 185.1 | Domalski and Hearing, 1996 | CAL |
18.55 | 185.1 | Deese, 1931 | DH |
IR Spectrum
Go To: Top, Condensed phase thermochemistry data, Phase change data, References, Notes
Data compiled by: Coblentz Society, Inc.
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
References
Go To: Top, Condensed phase thermochemistry data, Phase change data, IR Spectrum, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Bjellerup, 1961
Bjellerup, L.,
Heats of combustion and formation of the 1-bromoalkanes from C4 through C8,
Acta Chem. Scand., 1961, 15, 231-241. [all data]
Deese, 1931
Deese, R.F., Jr.,
Thermal energy studies. IV. Comparison of continuous and discontinuous methods of measuring heat capacities. Heat capacities of some alphatic bromides,
J. Am. Chem. Soc., 1931, 53, 3673-3683. [all data]
Shehatta, 1993
Shehatta, I.,
Heat capacity at constant pressure of some halogen compounds,
Thermochim. Acta, 1993, 213, 1-10. [all data]
Kushner, Crowe, et al., 1950
Kushner, L.M.; Crowe, R.W.; Smyth, C.P.,
The heat capacities and dielectric constants of some alkyl halides in the solid state,
J. Am. Chem. Soc., 1950, 72, 1091-1098. [all data]
Kushner, Crowe, et al., 1950, 2
Kushner, L.M.; Crowe, R.W.; Smyth, C.P.,
The Heat Capacity and Dielectric Constants of Some Alkyl Halides in the Solid State,
J. Am. Chem. Soc., 1950, 72, 1091. [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]
Mair, 1932
Mair, B.J.,
The Synthesis, Purification, and Certain Physical Constants of the Normal Hydrocarbons from Pentane to Dodecane, of n-Amyl Bromide and of n-Nonyl Bromide,
J. Res. Natl. Bur. Stand. (U. S.), 1932, 9, 457. [all data]
Deese, 1931, 2
Deese, R.F.,
Thermal energy studies: IV comparison of continuous and discontinuous methods of measuring heat capacities heat capacities of some aliphatic bromides,
J. Am. Chem. Soc., 1931, 53, 3673. [all data]
Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [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]
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]
Li and Rossini, 1961
Li, J.C.M.; Rossini, F.D.,
Vapor Pressures and Boiling Points of the l-Fluoroalkanes, l-Chloroalkanes, l-Bromoalkanes, and l-Iodoalkanes, C 1 to C 20 .,
J. Chem. Eng. Data, 1961, 6, 2, 268-270, https://doi.org/10.1021/je60010a025
. [all data]
Dykyj, 1972
Dykyj, J.,
Petrochemia, 1972, 12, 1, 13. [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, Condensed phase thermochemistry data, Phase change data, IR Spectrum, References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid S°liquid Entropy of liquid at standard conditions Tboil Boiling point Tfus Fusion (melting) point ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔfusH Enthalpy of fusion ΔfusS Entropy 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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