1,5-Pentanediol
- Formula: C5H12O2
- Molecular weight: 104.1476
- IUPAC Standard InChIKey: ALQSHHUCVQOPAS-UHFFFAOYSA-N
- CAS Registry Number: 111-29-5
- 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: α,ω-Pentanediol; Pentamethylene glycol; Pentylene glycol; 1,5-Dihydroxypentane; 1,5-Pentamethylene glycol; Pentane-1,5-diol; 1,5-Pentandiol; 1,5-Pentylene glycol; Pentane diol-1,5; NSC 5927
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Gas phase thermochemistry data
Go To: Top, Phase change data, 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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -442.0 ± 5.7 | kJ/mol | Ccr | Knauth and Sabbah, 1990 | see Knauth and Sabbah, 1989; ALS |
ΔfH°gas | -449. ± 3. | kJ/mol | Ccb | Gardner and Hussain, 1972 | ALS |
ΔfH°gas | -444.5 | kJ/mol | N/A | Miller, 1936 | Value computed using ΔfHliquid° value of -526.5 kj/mol from Miller, 1936 and ΔvapH° value of 82.0 kj/mol from Gardner and Hussain, 1972.; DRB |
Phase change data
Go To: Top, Gas phase thermochemistry data, 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 as indicated in comments:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
DRB - Donald R. Burgess, Jr.
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
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 512. ± 7. | K | AVG | N/A | Average of 8 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 378. | K | N/A | Lipkin and Layloff, 1970 | Uncertainty assigned by TRC = 2. K; TRC |
Tfus | 257.55 | K | N/A | Mellan, 1962 | Uncertainty assigned by TRC = 0.6 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 254.4 | K | N/A | Knauth and Sabbah, 1990, 2 | Uncertainty assigned by TRC = 0.1 K; TRC |
Ttriple | 248.0 | K | N/A | Nitta, Seki, et al., 1950 | Uncertainty assigned by TRC = 0.2 K; TRC |
Ttriple | 248. | K | N/A | Miller, 1936, 2 | Uncertainty assigned by TRC = 0.4 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 86.8 | kJ/mol | N/A | Knauth and Sabbah, 1990 | DRB |
ΔvapH° | 86.8 ± 0.5 | kJ/mol | C | Knauth and Sabbah, 1988 | See also Knauth and Sabbah, 1990.; AC |
ΔvapH° | 86.8 ± 0.5 | kJ/mol | C | Knauth and Sabbah, 1988, 2 | ALS |
ΔvapH° | 82.0 | kJ/mol | N/A | Gardner and Hussain, 1972 | DRB |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
78.6 | 406. | A | Stephenson and Malanowski, 1987 | Based on data from 391. to 479. K.; AC |
82. ± 2. | 446. | V | Gardner and Hussain, 1972 | ALS |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
15.72 | 248. | Domalski and Hearing, 1996 | AC |
15.728 | 248.0 | Miller, 1935 | DH |
Entropy of fusion
ΔfusS (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
63.4 | 248.0 | Miller, 1935 | DH |
Mass spectrum (electron ionization)
Go To: Top, Gas phase thermochemistry data, 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 by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Spectrum
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Additional Data
View image of digitized spectrum (can be printed in landscape orientation).
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-1716 |
NIST MS number | 229403 |
References
Go To: Top, Gas phase thermochemistry data, Phase change data, 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.
Knauth and Sabbah, 1990
Knauth, P.; Sabbah, R.,
Energetics of intra- and intermolecular bonds in ω-alkanediols (II) Thermochemical study of 1,2-ethanediol, 1,3-propanediol, 1,4-butanediol, and 1,5-pentanediol at 298.15K,
Struct. Chem., 1990, 1, 43-46. [all data]
Knauth and Sabbah, 1989
Knauth, P.; Sabbah, R.,
Combustion calorimetry on milligram samples of liquid substances with a CRMT rocking bomb calorimeter. Application to the study of ω-alkanediol at 298.15 K,
J. Chem. Thermodyn., 1989, 21, 203-210. [all data]
Gardner and Hussain, 1972
Gardner, P.J.; Hussain, K.S.,
The standard enthalpies of formation of some aliphatic diols,
J. Chem. Thermodyn., 1972, 4, 819-827. [all data]
Miller, 1936
Miller, P.,
The free energy of furfural and some of its derivatives,
Iowa State Coll. J. Sci., 1936, 10, 91-93. [all data]
Lipkin and Layloff, 1970
Lipkin, D.; Layloff, T.,
Cyclic Sulfite and Sulfate Esters of Polymethylene Glycols,
J. Chem. Eng. Data, 1970, 15, 450. [all data]
Mellan, 1962
Mellan, I.,
Polyhydric Alcohols, Spartan Books: Washington, DC, 1962. [all data]
Knauth and Sabbah, 1990, 2
Knauth, P.; Sabbah, R.,
Can. J. Chem., 1990, 68, 731. [all data]
Nitta, Seki, et al., 1950
Nitta, I.; Seki, S.; Momotani, M.,
The Phase Transition in Pentaerythritol I.,
Proc. Jpn. Acad., 1950, 26, 9, 25-9. [all data]
Miller, 1936, 2
Miller, P.,
The Free Energy of Furfural and Some of Its Derivatives,
Iowa State Coll. J. Sci., 1936, 10, 91-3. [all data]
Knauth and Sabbah, 1988
Knauth, P.; Sabbah, R.,
Energetics of intra- and intermolecular bonds in ω-alkanediols. I. Calorimetric investigation of the enthalpies of vaporization at 298.15 K,
Bull. Soc. Chim. Fr., 1988, 5, 834. [all data]
Knauth and Sabbah, 1988, 2
Knauth, P.; Sabbah, R.,
Energetique des liaisons intra- et intermoleculaires dans la serie des <omega>-alcanediols. I : etude calorimetrique des enthalpies de vaporisation a 298,15 K,
Bull. Soc. Chim. Fr., 1988, 834-836. [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]
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]
Miller, 1935
Miller, P.,
The free energy of furfural and some of its derivatives,
Iowa State Coll. J. Sci., 1935, 10, 91-93. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), References
- Symbols used in this document:
Tboil Boiling point Tfus Fusion (melting) point Ttriple Triple point temperature ΔfH°gas Enthalpy of formation of gas 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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