3-Pentanol, 3-methyl-

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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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Δfgas-83.24 ± 0.29kcal/molEqkWiberg and Hao, 1991Heat of hydration

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
Δfliquid-96.78 ± 0.21kcal/molEqkWiberg and Hao, 1991Heat of hydration; ALS

Constant pressure heat capacity of liquid

Cp,liquid (cal/mol*K) Temperature (K) Reference Comment
72.239298.15Caceres-Alonso, Costas, et al., 1988DH
70.227298.15Ortega, 1986DH
70.120298.15Bravo, Pintos, et al., 1984DH

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
DRB - Donald R. Burgess, Jr.

Quantity Value Units Method Reference Comment
Tboil395. ± 2.KAVGN/AAverage of 22 out of 24 values; Individual data points
Quantity Value Units Method Reference Comment
Tfus249.55KN/AHoward, Mears, et al., 1947Uncertainty assigned by TRC = 0.2 K; TRC
Quantity Value Units Method Reference Comment
Tc575.6 ± 0.6KN/AGude and Teja, 1995 
Tc575.6KN/AQuadri, Khilar, et al., 1991Uncertainty assigned by TRC = 0.8 K; TRC
Quantity Value Units Method Reference Comment
Pc34.7 ± 0.2atmN/AGude and Teja, 1995 
Pc34.74atmN/AQuadri, Khilar, et al., 1991Uncertainty assigned by TRC = 0.49 atm; TRC
Quantity Value Units Method Reference Comment
Δvap13.3 ± 0.07kcal/molGSKulikov, Verevkin, et al., 2001Based on data from 275. to 301. K.; AC
Δvap13.54 ± 0.20kcal/molVWiberg and Hao, 1991Heat of hydration; ALS
Δvap13.5kcal/molN/AWiberg and Hao, 1991DRB
Δvap13.6 ± 0.2kcal/molN/AWiberg and Hao, 1991AC

Enthalpy of vaporization

ΔvapH (kcal/mol) Temperature (K) Method Reference Comment
9.58337.AStephenson and Malanowski, 1987Based on data from 322. to 397. K.; AC
11.1353.N/AWilhoit and Zwolinski, 1973Based on data from 338. to 396. K.; AC
10.1346.IHovorka, Lankelma, et al., 1940Based on data from 298. to 393. K.; AC

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


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 compiled by: John E. Bartmess

De-protonation reactions

C6H13O- + Hydrogen cation = 3-Pentanol, 3-methyl-

By formula: C6H13O- + H+ = C6H14O

Quantity Value Units Method Reference Comment
Δr371.9 ± 2.0kcal/molCIDCHaas and Harrison, 1993gas phase; Both metastable and 50 eV collision energy.
Δr371.9 ± 2.8kcal/molG+TSBoand, Houriet, et al., 1983gas phase; value altered from reference due to change in acidity scale
Quantity Value Units Method Reference Comment
Δr365.3 ± 2.1kcal/molH-TSHaas and Harrison, 1993gas phase; Both metastable and 50 eV collision energy.
Δr365.3 ± 2.7kcal/molCIDCBoand, Houriet, et al., 1983gas phase; value altered from reference due to change in acidity scale

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change 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.

Wiberg and Hao, 1991
Wiberg, K.B.; Hao, S., Enthalpies of hydration of alkenes. 4. Formation of acyclic tert-alcohols, J. Org. Chem., 1991, 56, 5108-5110. [all data]

Caceres-Alonso, Costas, et al., 1988
Caceres-Alonso, M.; Costas, M.; Andreoli-Ball, L.; Patterson, D., Steric effects on the self-association of branched and cyclic alcohols in inert solvents. Apparent heat capacities of secondary and tertiary alcohols in hydrocarbons, Can. J. Chem., 1988, 66, 989-998. [all data]

Ortega, 1986
Ortega, J., Excess molar heat capacities of the binary mixtures of cyclohexane with isomers of hexanol at 298.15 K, Rev. Latinoam. Ing. Quim. Quim. Apl., 1986, 16, 307-315. [all data]

Bravo, Pintos, et al., 1984
Bravo, R.; Pintos, M.; Baluja, M.C.; Paz Andrade, M.I.; Roux-Desgranges, G.; Grolier, J.-P.E., Excess volumes excess heat capacities of some mixtures: (an isomer of hexanol + an n-alkane) at 298.15 K, J. Chem. Thermodynam., 1984, 16, 73-79. [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]

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]

Quadri, Khilar, et al., 1991
Quadri, S.K.; Khilar, K.C.; Kudchadker, A.P.; Patni, M.J., Measurement of the critical temperatures and critical pressures of some thermally stable or mildly unstable alkanols, J. Chem. Thermodyn., 1991, 23, 67-76. [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]

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]

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]

Hovorka, Lankelma, et al., 1940
Hovorka, Frank; Lankelma, Herman P.; Axelrod, Abraham E., Thermodynamic Properties of the Hexyl Alcohols. III. 2-Methylpentanol-3 and 3-Methylpentanol-3, J. Am. Chem. Soc., 1940, 62, 1, 187-189, https://doi.org/10.1021/ja01858a055 . [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]


Notes

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