1-Pentanol
- Formula: C5H12O
- Molecular weight: 88.1482
- IUPAC Standard InChIKey: AMQJEAYHLZJPGS-UHFFFAOYSA-N
- CAS Registry Number: 71-41-0
- 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: Pentyl alcohol; n-Amyl alcohol; n-Butylcarbinol; n-Pentan-1-ol; n-Pentanol; n-Pentyl alcohol; Amyl alcohol; Amylol; Pentanol; 1-Pentyl alcohol; n-C5H11OH; Pentan-1-ol; Pentanol-1; Pentasol; n-Amylalkohol; Alcool amylique; Amyl alcohol, n-; Amyl alcohol, normal; Primary amyl alcohol; UN 1105; 1-Pentol; Primary-N-amyl alcohol; Butyl carbinol; NSC 5707
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Condensed phase thermochemistry data
Go To: Top, Phase change data, 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
DRB - Donald R. Burgess, Jr.
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°liquid | -84.039 ± 0.067 | kcal/mol | Ccb | Mosselman and Dekker, 1975 | ALS |
ΔfH°liquid | -84.3 ± 0.2 | kcal/mol | Ccb | Hayes, 1971 | DRB |
ΔfH°liquid | -84.27 ± 0.17 | kcal/mol | Ccb | Gundry, Harrop, et al., 1969 | ALS |
ΔfH°liquid | -85.55 ± 0.12 | kcal/mol | Ccb | Chao and Rossini, 1965 | see Rossini, 1934; ALS |
ΔfH°liquid | -85.65 ± 0.40 | kcal/mol | Ccb | Green, 1960 | ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -796.107 ± 0.067 | kcal/mol | Ccb | Mosselman and Dekker, 1975 | Corresponding ΔfHºliquid = -84.039 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
ΔcH°liquid | -795.87 ± 0.16 | kcal/mol | Ccb | Hayes, 1971 | Corresponding ΔfHºliquid = -84.28 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
ΔcH°liquid | -795.88 ± 0.15 | kcal/mol | Ccb | Gundry, Harrop, et al., 1969 | Corresponding ΔfHºliquid = -84.266 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
ΔcH°liquid | -794.61 ± 0.09 | kcal/mol | Ccb | Chao and Rossini, 1965 | see Rossini, 1934; Corresponding ΔfHºliquid = -85.54 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
ΔcH°liquid | -794.5 | kcal/mol | Ccb | Verkade and Coops, 1927 | Corrected for 298 and 1 atm.; Corresponding ΔfHºliquid = -85.6 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
Quantity | Value | Units | Method | Reference | Comment |
S°liquid | 61.88 | cal/mol*K | N/A | Counsell, Lees, et al., 1968 | DH |
S°liquid | 60.90 | cal/mol*K | N/A | Parks, Huffman, et al., 1933 | Extrapolation below 90 K, 57.66 J/mol*K.; DH |
Constant pressure heat capacity of liquid
Cp,liquid (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
49.582 | 298.15 | Benson and D'Arcy, 1986 | DH |
49.582 | 298.15 | Benson and D'Arcy, 1986, 2 | DH |
49.759 | 298.15 | Tanaka, Toyama, et al., 1986 | DH |
49.947 | 298.15 | Zegers and Somsen, 1984 | DH |
49.57 | 298.15 | D'Aprano, DeLisi, et al., 1983 | Data given at 288 and 298 K.; DH |
49.14 | 293.15 | Arutyunyan, Bagdasaryan, et al., 1981 | T = 293 to 393 K. p = 0.1 MPa. Unsmoothed experimental datum given as 2.332 kJ/kg*K. Cp given from 293.15 to 533.15 K for pressure range 10 to 60 MPa.; DH |
50.74 | 301.26 | Griigo'ev, Yanin, et al., 1979 | T = 301 to 463 K. p = 0.98 bar.; DH |
49.809 | 298.15 | Skold, Suurkuusk, et al., 1976 | DH |
57.50 | 313.2 | Paz Andrade, Paz, et al., 1970 | DH |
49.78 | 298.15 | Counsell, Lees, et al., 1968 | T = 10 to 390 K.; DH |
48.21 | 302.4 | Phillip, 1939 | DH |
49.981 | 298.0 | Parks, Huffman, et al., 1933 | T = 94 to 298 K. Value is unsmoothed experimental datum.; DH |
43.81 | 298. | von Reis, 1881 | T = 298 to 400 K.; DH |
Phase change data
Go To: Top, Condensed phase thermochemistry data, 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
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 411. ± 1. | K | AVG | N/A | Average of 54 out of 66 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 194.35 | K | N/A | Timmermans, 1952 | Uncertainty assigned by TRC = 0.3 K; TRC |
Tfus | 194.65 | K | N/A | Tschamler, Richter, et al., 1949 | Uncertainty assigned by TRC = 0.5 K; TRC |
Tfus | 194.65 | K | N/A | Timmermans and Mattaar, 1921 | Uncertainty assigned by TRC = 0.5 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 195.56 | K | N/A | Counsell, Lees, et al., 1968, 2 | Uncertainty assigned by TRC = 0.02 K; TRC |
Ttriple | 194.2 | K | N/A | Parks, Huffman, et al., 1933, 2 | Uncertainty assigned by TRC = 0.2 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 580. ± 20. | K | AVG | N/A | Average of 10 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 38.4 ± 0.4 | atm | AVG | N/A | Average of 6 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Vc | 0.326 | l/mol | N/A | Gude and Teja, 1995 | |
Quantity | Value | Units | Method | Reference | Comment |
ρc | 3.06 ± 0.02 | mol/l | N/A | Gude and Teja, 1995 | |
ρc | 3.06 | mol/l | N/A | Teja, Lee, et al., 1989 | TRC |
ρc | 3.10 | mol/l | N/A | Smith, Anselme, et al., 1986 | Uncertainty assigned by TRC = 0.20 mol/l; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 13.5 ± 0.5 | kcal/mol | AVG | N/A | Average of 14 values; Individual data points |
Reduced pressure boiling point
Tboil (K) | Pressure (atm) | Reference | Comment |
---|---|---|---|
323.2 | 0.017 | Weast and Grasselli, 1989 | BS |
Enthalpy of vaporization
Enthalpy of vaporization
ΔvapH = A exp(-αTr)
(1 − Tr)β
ΔvapH =
Enthalpy of vaporization (at saturation pressure)
(kcal/mol)
Tr = reduced temperature (T / Tc)
View plot Requires a JavaScript / HTML 5 canvas capable browser.
Temperature (K) | 298. to 421. | 298. to 368. |
---|---|---|
A (kcal/mol) | 16.14 | 14.72 |
α | -0.8195 | -1.2689 |
β | 0.8272 | 1.0462 |
Tc (K) | 588.2 | 551.6 |
Reference | Majer and Svoboda, 1985 | Majer and Svoboda, 1985 |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (atm)
T = temperature (K)
View plot Requires a JavaScript / HTML 5 canvas capable browser.
Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
437.79 to 513.79 | 3.96812 | 1106.11 | -134.578 | Ambrose, Sprake, et al., 1975 | Coefficents calculated by NIST from author's data. |
347.91 to 429.13 | 4.31847 | 1297.689 | -110.669 | Ambrose and Sprake, 1970 | Coefficents calculated by NIST from author's data. |
307.1 to 411. | 4.67706 | 1492.549 | -91.621 | Kemme and Kreps, 1969 |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
2.5100 | 195.56 | Counsell, Lees, et al., 1968 | DH |
2.512 | 195.6 | van Miltenburg and van den Berg, 2004 | AC |
2.51 | 195.6 | Domalski and Hearing, 1996 | AC |
2.349 | 194.2 | Parks, Huffman, et al., 1933 | DH |
Entropy of fusion
ΔfusS (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
12.83 | 195.56 | Counsell, Lees, et al., 1968 | DH |
12.10 | 194.2 | Parks, Huffman, et al., 1933 | DH |
References
Go To: Top, Condensed phase thermochemistry data, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Mosselman and Dekker, 1975
Mosselman, C.; Dekker, H.,
Enthalpies of formation of n-alkan-1-ols,
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Hayes, 1971
Hayes, C.W.,
Bomb calorimetric studies on normal alkan-1-ols, steroregular polymethylmethacrylates, α-olefinic polymers, trioxane and oxygenated polymers,
Diss. Abs., 1971, 31, 5903-5904. [all data]
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Gundry, H.A.; Harrop, D.; Head, A.J.; Lewis, G.B.,
Thermodynamic properties of organic oxygen compounds. 21. Enthalpies of combustion of benzoic acid, pentan-1-ol, octan-1-ol, and hexadecan-1-ol,
J. Chem. Thermodyn., 1969, 1, 321-332. [all data]
Chao and Rossini, 1965
Chao, J.; Rossini, F.D.,
Heats of combustion, formation, and isomerization of nineteen alkanols,
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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,
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Green, 1960
Green, J.H.S.,
Revision of the values of the heats of formation of normal alcohols,
Chem. Ind. (London), 1960, 1215-1216. [all data]
Verkade and Coops, 1927
Verkade, P.E.; Coops, J., Jr.,
Calorimetric researches XIV. Heats of combustion of successive members of homologous series: the normal primary aliphatic alcohols,
Recl. Trav. Chim. Pays-Bas, 1927, 46, 903-917. [all data]
Counsell, Lees, et al., 1968
Counsell, J.F.; Lees, E.B.; Martin, J.F.,
Thermodynamic properties of organic oxygen compounds. Part XIX. Low temperature heat capacity and entropy of propan-1-ol, 2-methyl-propan-1-ol,
and pentan-1-ol, 1968, J. [all data]
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Parks, G.S.; Huffman, H.M.; Barmore, M.,
Thermal data on organic compounds. XI. The heat capacities,
entropies and free energies of ten compounds containing oxygen or nitrogen. J. Am. Chem. Soc., 1933, 55, 2733-2740. [all data]
Benson and D'Arcy, 1986
Benson, G.C.; D'Arcy, P.J.,
Excess isobaric heat capacities of some binary mixtures: (a C5-alkanol + n-heptane) at 298.15 K,
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Benson and D'Arcy, 1986, 2
Benson, G.C.; D'Arcy, P.J.,
Heat capacities of binary mixtures of n-dodecane with hexane isomers,
Thermochim. Acta, 1986, 102, 75-81. [all data]
Tanaka, Toyama, et al., 1986
Tanaka, R.; Toyama, S.; Murakami, S.,
Heat capacities of {xCnH2n+1OH+(1-x)C7H16} for n = 1 to 6 at 298.15 K,
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Partial molar volumes and heat capacities in (dimethylformamide + an n-alkanol),
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D'Aprano, A.; DeLisi, R.; Donato, D.I.,
Thermodynamics of binary mixtures: volumes, heat capacities, and dilution enthalpies for the n-pentanol + 2-methyl-2-butanol system,
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Arutyunyan, Bagdasaryan, et al., 1981
Arutyunyan, G.S.; Bagdasaryan, S.S.; Kerimov, A.M.,
Experimental investigation of the isobaric heat capacity of n-propyl, n-butyl and n-amyl alcohols at different temperatures and pressures,
Izv. Akad. Nauk Azerb. SSr, 1981, (6), 94-97. [all data]
Griigo'ev, Yanin, et al., 1979
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54, 1979, 57-64. [all data]
Skold, Suurkuusk, et al., 1976
Skold, R.; Suurkuusk, J.; Wadso, I.,
Thermochemistry of solutions of biochemical model compounds. 7. Aqueous solutions of some amides, t-butanol, and pentanol,
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Paz Andrade, Paz, et al., 1970
Paz Andrade, M.I.; Paz, J.M.; Recacho, E.,
Contribucion a la microcalorimetria de los calores especificos de solidos y liquidos,
An. Quim., 1970, 66, 961-967. [all data]
Phillip, 1939
Phillip, N.M.,
Adiabatic and isothermal compressibilities of liquids,
Proc. Indian Acad. Sci., 1939, A9, 109-120. [all data]
von Reis, 1881
von Reis, M.A.,
Die specifische Wärme flüssiger organischer Verbindungen und ihre Beziehung zu deren Moleculargewicht,
Ann. Physik [3], 1881, 13, 447-464. [all data]
Timmermans, 1952
Timmermans, J.,
Freezing points of organic compounds. VVI New determinations.,
Bull. Soc. Chim. Belg., 1952, 61, 393. [all data]
Tschamler, Richter, et al., 1949
Tschamler, H.; Richter, E.; Wettig, F.,
Mixtures of Primry Aliphatic Alcohols with Chlorex and Other Organic Substances. Binary Liquid Mixtures XII.,
Monatsh. Chem., 1949, 80, 749. [all data]
Timmermans and Mattaar, 1921
Timmermans, J.; Mattaar, J.F.,
Freezing points of orgainic substances VI. New experimental determinations.,
Bull. Soc. Chim. Belg., 1921, 30, 213. [all data]
Counsell, Lees, et al., 1968, 2
Counsell, J.F.; Lees, E.B.; Martin, J.F.,
Thermodynamic properties of organic oxygen compounds. Part XIX. Low-temperature heat capacity and entropy of propan-1-ol, 2-methylpropan-1-ol, and pentan-1-ol,
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. [all data]
Parks, Huffman, et al., 1933, 2
Parks, G.S.; Huffman, H.M.; Barmore, M.,
Thermal Data on Organic Compounds. XI. The Heat Capacities, Entropies and Free Energies of Ten Compounds Containing Oxygen or Nitrogen,
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Gude and Teja, 1995
Gude, M.; Teja, A.S.,
Vapor-Liquid Critical Properties of Elements and Compounds. 4. Aliphatic Alkanols,
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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]
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]
Wormald and James, 2000
Wormald, Christopher J.; James, Gareth F.,
Specific Enthalpy Increments for Pentan-1-ol at Temperatures up to 623.2 K and 10.1 MPa,
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Aucejo, Antonio; Burguet, M.C.; Monton, Juan B.; Munoz, Rosa; Sanchotello, Margarita; Vazquez, M. Isabel,
Isothermal Vapor-Liquid Equilibria of 1-Pentanol with 2-Methyl-1-butanol, 2-Methyl-2-butanol, and 3-Methyl-2-butanol,
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Ambrose, D.; Sprake, C.H.S.; Townsend, R.,
Thermodynamic properties of organic oxygen compounds XXIX. The vapour pressure of diethyl ether,
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Majer, Svoboda, et al., 1985
Majer, V.; Svoboda, V.; Lencka, M.,
Enthalpies of vaporization and cohesive energies of dimethylpyridines and trimethylpyridines,
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Wilhoit and Zwolinski, 1973
Wilhoit, R.C.; Zwolinski, B.J.,
Physical and thermodynamic properties of aliphatic alcohols,
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Counsell, Fenwick, et al., 1970
Counsell, J.F.; Fenwick, J.O.; Lees, E.B.,
Thermodynamic properties of organic oxygen compounds 24. Vapour heat capacities and enthalpies of vaporization of ethanol, 2-methylpropan-1-ol, and pentan-1-ol,
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Kemme, Herbert R.; Kreps, Saul I.,
Vapor pressure of primary n-alkyl chlorides and alcohols,
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Thermodynamic Properties of Organic Oxygen Compounds. XXXVII. Vapour Pressures of Methanol, Ethanol, Pentan-1-ol, and Octan-1-ol from the Normal Boiling Temperature to the Critical Temperature,
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Thermodynamic properties of organic oxygen compounds XXV. Vapour pressures and normal boiling temperatures of aliphatic alcohols,
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van Miltenburg, J. Cees; van den Berg, Gerrit J.K.,
Heat Capacities and Derived Thermodynamic Functions of 1-Propanol between 10 K and 350 K and of 1-Pentanol between 85 K and 370 K,
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Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid Pc Critical pressure S°liquid Entropy of liquid at standard conditions Tboil Boiling point Tc Critical temperature Tfus Fusion (melting) point Ttriple Triple point temperature Vc Critical volume 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 ρc Critical density - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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