Vanillin
- Formula: C8H8O3
- Molecular weight: 152.1473
- IUPAC Standard InChIKey: MWOOGOJBHIARFG-UHFFFAOYSA-N
- CAS Registry Number: 121-33-5
- 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: Benzaldehyde, 4-hydroxy-3-methoxy-; p-Hydroxy-m-methoxybenzaldehyde; Lioxin; Vanillaldehyde; Vanillic aldehyde; 2-Methoxy-4-formylphenol; 3-Methoxy-4-hydroxybenzaldehyde; 4-Formyl-2-methoxyphenol; 4-Hydroxy-3-methoxybenzaldehyde; 4-Hydroxy-5-methoxybenzaldehyde; Vanilla; m-Anisaldehyde, 4-hydroxy-; Protocatechualdehyde, methyl-; Zimco; 4-Hydroxy-m-anisaldehyde; p-Vanillin; m-Methoxy-p-hydroxybenzaldehyde; Methylprotocatechuic aldehyde; Vanilin; NSC 15351; Methylprotcatechuic aldehyde; 4-hydroxy-3-methoxybenzaldehyde (vanillin); vanillin (3-methoxy-4-hydroxy- benzaldehyde); 3-Methoxy-4-hydroxybenzaldehyde (vanillin)
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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
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tfus | 355.1 ± 0.9 | K | AVG | N/A | Average of 7 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 66.9 | kJ/mol | GC | Hoskovec, Grygarová, et al., 2005 | Based on data from 353. to 463. K.; AC |
Reduced pressure boiling point
Tboil (K) | Pressure (bar) | Reference | Comment |
---|---|---|---|
443.2 | 0.020 | Weast and Grasselli, 1989 | BS |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
66.9 | 395. | A | Stephenson and Malanowski, 1987 | Based on data from 380. to 558. K. See also Stull, 1947.; AC |
Enthalpy of sublimation
ΔsubH (kJ/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
88.7 | 323. | Serpinskii, Voitkevich, et al., 1953 | Based on data from 293. to 353. K. See also Jones, 1960.; AC |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
22.4 | 355.4 | N/A | Temprado, Roux, et al., 2008 | AC |
References
Go To: Top, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Hoskovec, Grygarová, et al., 2005
Hoskovec, Michal; Grygarová, Dana; Cvacka, Josef; Streinz, Ludvík; Zima, Jirí; Verevkin, Sergey P.; Koutek, Bohumír,
Determining the vapour pressures of plant volatiles from gas chromatographic retention data,
Journal of Chromatography A, 2005, 1083, 1-2, 161-172, https://doi.org/10.1016/j.chroma.2005.06.006
. [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]
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]
Stull, 1947
Stull, Daniel R.,
Vapor Pressure of Pure Substances. Organic and Inorganic Compounds,
Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022
. [all data]
Serpinskii, Voitkevich, et al., 1953
Serpinskii, V.V.; Voitkevich, S.A.; Lyuboshits, N.Y.,
Zh. Fiz. Khim., 1953, 27, 1032. [all data]
Jones, 1960
Jones, A.H.,
Sublimation Pressure Data for Organic Compounds.,
J. Chem. Eng. Data, 1960, 5, 2, 196-200, https://doi.org/10.1021/je60006a019
. [all data]
Temprado, Roux, et al., 2008
Temprado, M.; Roux, María Victoria; Chickos, J.S.,
Some thermophysical properties of several solid aldehydes,
J Therm Anal Calorim, 2008, 94, 1, 257-262, https://doi.org/10.1007/s10973-007-8883-0
. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Tboil Boiling point Tfus Fusion (melting) point ΔfusH Enthalpy of fusion ΔsubH Enthalpy of sublimation 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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