3-Pentanol
- Formula: C5H12O
- Molecular weight: 88.1482
- IUPAC Standard InChIKey: AQIXEPGDORPWBJ-UHFFFAOYSA-N
- CAS Registry Number: 584-02-1
- 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. - Other names: Diethyl carbinol; 3-Pentyl alcohol; (C2H5)2CHOH; Pentan-3-ol; sec-Amyl alcohol; Pentanol-3; UN 2706; Isoamyl alcohol; 1-Ethyl-1-propanol; NSC 8654; sec-Pentanol; sec-Pentyl alcohol
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Gas 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:
DRB - Donald R. Burgess, Jr.
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -317.2 | kJ/mol | N/A | Sachek, Peshchenko, et al., 1974 | Value computed using ΔfHliquid° value of -368.9±0.8 kj/mol from Sachek, Peshchenko, et al., 1974 and ΔvapH° value of 51.7 kj/mol from Chao and Rossini, 1965.; DRB |
ΔfH°gas | -314.7 ± 1.1 | kJ/mol | Eqk | Buckley and Herington, 1965 | Reanalyzed by Cox and Pilcher, 1970, Original value = -315.4 kJ/mol; ALS |
ΔfH°gas | -318.6 ± 1.5 | kJ/mol | Ccb | Chao and Rossini, 1965 | Heat of formation derived by Cox and Pilcher, 1970; ALS |
Quantity | Value | Units | Method | Reference | Comment |
S°gas | 382.21 | J/mol*K | N/A | Buckley E., 1965 | This value was obtained from the measurements of gas-phase equilibrium constants.; GT |
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 | -368.9 ± 0.79 | kJ/mol | Ccb | Sachek, Peshchenko, et al., 1974 | Heat of combustion not reported; ALS |
ΔfH°liquid | -370.3 ± 0.59 | kJ/mol | Ccb | Chao and Rossini, 1965 | see Rossini, 1934; ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -3312.3 ± 0.46 | kJ/mol | Ccb | Chao and Rossini, 1965 | see Rossini, 1934; Corresponding ΔfHºliquid = -370.3 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 |
---|---|---|---|
239.7 | 298. | Conti, Gianni, et al., 1976 | 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
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 388. ± 2. | K | AVG | N/A | Average of 36 out of 37 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 559.6 ± 0.5 | K | N/A | Gude and Teja, 1995 | |
Tc | 559.6 | K | N/A | Teja, Lee, et al., 1989 | TRC |
Tc | 559.6 | K | N/A | Smith, Anselme, et al., 1986 | Uncertainty assigned by TRC = 0.25 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Vc | 0.325 | l/mol | N/A | Gude and Teja, 1995 | |
Quantity | Value | Units | Method | Reference | Comment |
ρc | 3.07 | mol/l | N/A | Gude and Teja, 1995 | |
ρc | 3.07 | mol/l | N/A | Smith, Anselme, et al., 1986 | Uncertainty assigned by TRC = 0.23 mol/l; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 54.03 | kJ/mol | N/A | Majer and Svoboda, 1985 | |
ΔvapH° | 53.2 ± 0.1 | kJ/mol | EB | Peschenko, Shvaro, et al., 1988 | See also Kulikov, Verevkin, et al., 2001.; AC |
ΔvapH° | 51.7 ± 1.3 | kJ/mol | V | Chao and Rossini, 1965 | Heat of formation derived by Cox and Pilcher, 1970; ALS |
ΔvapH° | 52.9 | kJ/mol | C | McCurdy and Laidler, 1963 | AC |
Reduced pressure boiling point
Tboil (K) | Pressure (bar) | Reference | Comment |
---|---|---|---|
387.7 | 0.999 | Aldrich Chemical Company Inc., 1990 | BS |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
59.9 | 260. | A | Stephenson and Malanowski, 1987 | Based on data from 245. to 390. K.; AC |
49.6 | 332. | N/A | Sachek, Markovnik, et al., 1984 | Based on data from 317. to 389. K.; AC |
53.6 | 294. | N/A | Cabani, Conti, et al., 1975 | Based on data from 279. to 318. K.; AC |
50.2 | 319. | N/A | Wilhoit and Zwolinski, 1973 | Based on data from 294. to 389. K.; AC |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
9.08 | 204.2 | Lohmann, Joh, et al., 1997 | AC |
Reaction 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:
B - John E. Bartmess
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.
Individual Reactions
C5H11O- + =
By formula: C5H11O- + H+ = C5H12O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1560. ± 8.4 | kJ/mol | CIDC | Haas and Harrison, 1993 | gas phase; Both metastable and 50 eV collision energy.; B |
ΔrH° | 1559. ± 12. | kJ/mol | G+TS | Boand, Houriet, et al., 1983 | gas phase; value altered from reference due to change in acidity scale; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1532. ± 8.8 | kJ/mol | H-TS | Haas and Harrison, 1993 | gas phase; Both metastable and 50 eV collision energy.; B |
ΔrG° | 1532. ± 11. | kJ/mol | CIDC | Boand, Houriet, et al., 1983 | gas phase; value altered from reference due to change in acidity scale; B |
By formula: H2 + C5H10O = C5H12O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -56.74 | kJ/mol | Eqk | Buckley and Herington, 1965 | gas phase; ALS |
By formula: C5H12O = H2 + C5H10O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 56.74 | kJ/mol | Eqk | Buckley and Herington, 1965 | gas phase; ALS |
Gas phase ion energetics 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 evaluated as indicated in comments:
L - Sharon G. Lias
Data compiled as indicated in comments:
B - John E. Bartmess
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
View reactions leading to C5H12O+ (ion structure unspecified)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 9.76 ± 0.02 | eV | N/A | N/A | L |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
9.78 ± 0.07 | EI | Bowen and Maccoll, 1984 | LBLHLM |
9.78 | EI | Holmes, Burgers, et al., 1982 | LBLHLM |
9.78 | EI | Holmes, Fingas, et al., 1981 | LLK |
9.73 | PE | Ashmore and Burgess, 1977 | LLK |
10.25 | PE | Ashmore and Burgess, 1977 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C3H6O+ | 9.84 ± 0.10 | C2H6 | EI | Bowen and Maccoll, 1984 | LBLHLM |
C3H6O+ | 9.84 | C2H6 | EI | Holmes, Burgers, et al., 1982 | LBLHLM |
De-protonation reactions
C5H11O- + =
By formula: C5H11O- + H+ = C5H12O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1560. ± 8.4 | kJ/mol | CIDC | Haas and Harrison, 1993 | gas phase; Both metastable and 50 eV collision energy.; B |
ΔrH° | 1559. ± 12. | kJ/mol | G+TS | Boand, Houriet, et al., 1983 | gas phase; value altered from reference due to change in acidity scale; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1532. ± 8.8 | kJ/mol | H-TS | Haas and Harrison, 1993 | gas phase; Both metastable and 50 eV collision energy.; B |
ΔrG° | 1532. ± 11. | kJ/mol | CIDC | Boand, Houriet, et al., 1983 | gas phase; value altered from reference due to change in acidity scale; B |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Sachek, Peshchenko, et al., 1974
Sachek, A.I.; Peshchenko, A.D.; Andreevskii, D.N.,
Heats of formation of secondary pentanols and hexanols,
Russ. J. Phys. Chem. (Engl. Transl.), 1974, 48, 617. [all data]
Chao and Rossini, 1965
Chao, J.; Rossini, F.D.,
Heats of combustion, formation, and isomerization of nineteen alkanols,
J. Chem. Eng. Data, 1965, 10, 374-379. [all data]
Buckley and Herington, 1965
Buckley, E.; Herington, E.F.G.,
Equilibria in some secondary alcohol + hydrogen + ketone systems,
Trans. Faraday Soc., 1965, 61, 1618-1625. [all data]
Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]
Buckley E., 1965
Buckley E.,
Equilibria in some secondary alcohol + hydrogen + ketone systems,
Trans. Faraday Soc., 1965, 61, 1618-1625. [all data]
Rossini, 1934
Rossini, F.D.,
Heats of combustion and of formation of the normal aliphatic alcohols in the gaseous and liquid states, and the energies of their atomic linkages,
J. Res. NBS, 1934, 13, 189-197. [all data]
Conti, Gianni, et al., 1976
Conti, G.; Gianni, P.; Matteoli, E.; Mengheri, M.,
Capacita termiche molari di alcuni composti organici mono- e bifunzionali nel liquido puro e in soluzione acquosa a 25C,
Chim. Ind. (Milan), 1976, 58, 225. [all data]
Gude and Teja, 1995
Gude, M.; Teja, A.S.,
Vapor-Liquid Critical Properties of Elements and Compounds. 4. Aliphatic Alkanols,
J. Chem. Eng. Data, 1995, 40, 1025-1036. [all data]
Teja, Lee, et al., 1989
Teja, A.S.; Lee, R.J.; Rosenthal, D.J.; Anselme, M.J.,
Correlation of the Critical Properties of Alkanes and Alkanols
in 5th IUPAC Conference on Alkanes and AlkanolsGradisca, 1989. [all data]
Smith, Anselme, et al., 1986
Smith, R.L.; Anselme, M.J.; Teja, A.S.,
The Critical Temperatures of Isomeric Pentanols and Heptanols,
Fluid Phase Equilib., 1986, 31, 161. [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]
Peschenko, Shvaro, et al., 1988
Peschenko, A.D.; Shvaro, O.V.; Zubkov, V.I.,
Termodin. Org. Soedin. Gor'kii, 1988, 39. [all data]
Kulikov, Verevkin, et al., 2001
Kulikov, Dmitry; Verevkin, Sergey P.; Heintz, Andreas,
Determination of Vapor Pressures and Vaporization Enthalpies of the Aliphatic Branched C 5 and C 6 Alcohols,
J. Chem. Eng. Data, 2001, 46, 6, 1593-1600, https://doi.org/10.1021/je010187p
. [all data]
McCurdy and Laidler, 1963
McCurdy, K.G.; Laidler, K.J.,
HEATS OF VAPORIZATION OF A SERIES OF ALIPHATIC ALCOHOLS,
Can. J. Chem., 1963, 41, 8, 1867-1871, https://doi.org/10.1139/v63-274
. [all data]
Aldrich Chemical Company Inc., 1990
Aldrich Chemical Company Inc.,
Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee WI, 1990, 1. [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]
Sachek, Markovnik, et al., 1984
Sachek, A.I.; Markovnik, V.S.; Peshchenko, A.D.; Shvaro, A.V.; Andreevskii, D.N.,
Khim. Prom-st. (Moscow), 1984, 337. [all data]
Cabani, Conti, et al., 1975
Cabani, Sergio; Conti, G.; Mollica, V.; Lepori, L.,
Thermodynamic study of dilute aqueous solutions of organic compounds. Part 4.---Cyclic and straight chain secondary alcohols,
J. Chem. Soc., Faraday Trans. 1, 1975, 71, 0, 1943, https://doi.org/10.1039/f19757101943
. [all data]
Wilhoit and Zwolinski, 1973
Wilhoit, R.C.; Zwolinski, B.J.,
Physical and thermodynamic properties of aliphatic alcohols,
J. Phys. Chem. Ref. Data Suppl., 1973, 1, 2, 1. [all data]
Lohmann, Joh, et al., 1997
Lohmann, J.; Joh, R.; Gmehling, J.,
Solid-Liquid Equilibria of Viscous Binary Mixtures with Alcohols,
J. Chem. Eng. Data, 1997, 42, 6, 1170-1175, https://doi.org/10.1021/je9700683
. [all data]
Haas and Harrison, 1993
Haas, M.J.; Harrison, A.G.,
The Fragmentation of Proton-Bound Cluster Ions and the Gas-Phase Acidities of Alcohols,
Int. J. Mass Spectrom. Ion Proc., 1993, 124, 2, 115, https://doi.org/10.1016/0168-1176(93)80003-W
. [all data]
Boand, Houriet, et al., 1983
Boand, G.; Houriet, R.; Baumann, T.,
The gas phase acidity of aliphatic alcohols,
J. Am. Chem. Soc., 1983, 105, 2203. [all data]
Bowen and Maccoll, 1984
Bowen, R.D.; Maccoll, A.,
Low energy, low temperature mass spectra,
Org. Mass Spectrom., 1984, 19, 379. [all data]
Holmes, Burgers, et al., 1982
Holmes, J.L.; Burgers, P.C.; Mollah, Y.A.,
Alkane elimination from ionized alkanols,
Org. Mass Spectrom., 1982, 17, 127. [all data]
Holmes, Fingas, et al., 1981
Holmes, J.L.; Fingas, M.; Lossing, F.P.,
Towards a general scheme for estimating the heats of formation of organic ions in the gas phase. Part I. Odd-electron cations,
Can. J. Chem., 1981, 59, 80. [all data]
Ashmore and Burgess, 1977
Ashmore, F.S.; Burgess, A.R.,
Study of Some Medium Size Alcohols and Hydroperoxides by Photoelectron Spectroscopy,
J. Chem. Soc. Faraday Trans. 2, 1977, 73, 1247. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy Cp,liquid Constant pressure heat capacity of liquid IE (evaluated) Recommended ionization energy S°gas Entropy of gas at standard conditions Tboil Boiling point Tc Critical temperature Vc Critical volume 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 ΔfusH Enthalpy of fusion ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions 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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