Xylitol
- Formula: C5H12O5
- Molecular weight: 152.1458
- IUPAC Standard InChIKey: HEBKCHPVOIAQTA-SCDXWVJYSA-N
- CAS Registry Number: 87-99-0
- 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. - Stereoisomers:
- Other names: Xylite; Klinit
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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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°liquid | -1118.6 ± 0.63 | kJ/mol | Ccb | Oberemok-Yakubova and Balandin, 1963 | |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -2564.0 ± 0.63 | kJ/mol | Ccb | Oberemok-Yakubova and Balandin, 1963 | Corresponding ΔfHºliquid = -1118.5 kJ/mol (simple calculation by NIST; no Washburn corrections) |
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
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tfus | 365.7 | K | N/A | Barone, DellaGatta, et al., 1990 | Uncertainty assigned by TRC = 0.2 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔsubH° | 161. | kJ/mol | B | Barone, Gatta, et al., 1990 | AC |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
111.1 ± 0.8 | 433. | TE | Barone, Gatta, et al., 1990 | Based on data from 406. to 460. K.; AC |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
37.400 | 365.7 | N/A | Barone and Della Gatta, 1990 | DH |
33.26 | 369. | N/A | Tong, Tan, et al., 2007 | AC |
37.7 | 368.0 | DSC | Carpentier, Desprez, et al., 2003 | AC |
37.4 | 365.7 | DSC | Domalski and Hearing, 1996 | See also Barone, Gatta, et al., 1990.; AC |
Entropy of fusion
ΔfusS (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
102.3 | 365.7 | Barone and Della Gatta, 1990 | 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.
Oberemok-Yakubova and Balandin, 1963
Oberemok-Yakubova, A.P.; Balandin, A.A.,
Determination of the heat of combustion of xylitol,
Bull. Acad. Sci. USSR, Div. Chem. Sci., 1963, 2038-2039. [all data]
Barone, DellaGatta, et al., 1990
Barone, G.; DellaGatta, G.; Ferro, D.; Piacente, V.,
Enthalpies and entropies of sublimation, vaporization and fusion of nine polyhydric alcohols,
J. Chem. Soc., Faraday Trans., 1990, 86, 75. [all data]
Barone, Gatta, et al., 1990
Barone, Guido; Gatta, Giuseppe Della; Ferro, Daniela; Piacente, Vincenzo,
Enthalpies and entropies of sublimation, vaporization and fusion of nine polyhydric alcohols,
Faraday Trans., 1990, 86, 1, 75, https://doi.org/10.1039/ft9908600075
. [all data]
Barone and Della Gatta, 1990
Barone, G.; Della Gatta, G.,
Ferro D., and Piacente, V., Enthalpies and entropies of sublimation, vaporization and fusion of nine polyhydric alcohols, J. Chem. Soc.,
Faraday Trans., 1990, 86(1), 75-79. [all data]
Tong, Tan, et al., 2007
Tong, Bo; Tan, Zhi-Cheng; Shi, Quan; Li, Yan-Sheng; Yue, Dan-Ting; Wang, Shao-Xu,
Thermodynamic investigation of several natural polyols (I): Heat capacities and thermodynamic properties of xylitol,
Thermochimica Acta, 2007, 457, 1-2, 20-26, https://doi.org/10.1016/j.tca.2007.02.022
. [all data]
Carpentier, Desprez, et al., 2003
Carpentier, L.; Desprez, S.; Descamps, M.,
Journal of Thermal Analysis and Calorimetry, 2003, 73, 2, 577-586, https://doi.org/10.1023/A:1025482230325
. [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, References
- Symbols used in this document:
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 ΔsubH° Enthalpy of sublimation at standard conditions ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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