Hexanal
- Formula: C6H12O
- Molecular weight: 100.1589
- IUPAC Standard InChIKey: JARKCYVAAOWBJS-UHFFFAOYSA-N
- CAS Registry Number: 66-25-1
- 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: n-Caproaldehyde; n-Hexanal; Caproaldehyde; Caproic aldehyde; Capronaldehyde; Hexaldehyde; n-C5H11CHO; 1-Hexanal; n-Hexaldehyde; n-Caproylaldehyde; Aldehyde C-6; Kapronaldehyd; UN 1207; Hexylaldehyde; n-Capronaldehyde; Hexan-1-al; Hexanaldehyde; NSC 2596
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Condensed phase thermochemistry data
Go To: Top, Phase change data, Henry's Law 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: Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
S°liquid | 280.3 | J/mol*K | N/A | Vasil'ev, Bykova, et al., 1991 |
Constant pressure heat capacity of liquid
Cp,liquid (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
210.4 | 298.15 | Vasil'ev, Bykova, et al., 1991 | T = 11 to 300 K. |
Phase change data
Go To: Top, Condensed phase thermochemistry data, Henry's Law 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:
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
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 402. ± 4. | K | AVG | N/A | Average of 12 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 216.9 | K | N/A | Anonymous, 1953 | Uncertainty assigned by TRC = 2. K; TRC |
Tfus | 211.9 | K | N/A | Timmermans, 1953 | Uncertainty assigned by TRC = 2. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 214.93 | K | N/A | Vasil'ev, Bykova, et al., 1991, 2 | Uncertainty assigned by TRC = 0.06 K; Found by melting point decrease depending on fusion part. Authors beleived there was liquid-to-liquid transition; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 592.8 | K | N/A | Gude and Teja, 1994 | Uncertainty assigned by TRC = 2.5 K; by the sealed ampule method; TRC |
Tc | 591.0 | K | N/A | Teja and Rosenthal, 1990 | Uncertainty assigned by TRC = 0.8 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 34.60 | bar | N/A | Teja and Rosenthal, 1990 | Uncertainty assigned by TRC = 0.50 bar; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ρc | 2.65 | mol/l | N/A | Gude and Teja, 1994 | Uncertainty assigned by TRC = 0.05 mol/l; by the sealed ampule method; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 42.5 ± 0.4 | kJ/mol | GS | Verevkin, Krasnykh, et al., 2003 | Based on data from 287. to 309. K.; AC |
ΔvapH° | 42.3 ± 0.1 | kJ/mol | N/A | D'yakova, Korichev, et al., 1981 | AC |
Reduced pressure boiling point
Tboil (K) | Pressure (bar) | Reference | Comment |
---|---|---|---|
301.2 | 0.016 | Weast and Grasselli, 1989 | BS |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
40.8 | 337. | EB | Palczewska-Tulinska and Oracz, 2006 | Based on data from 322. to 402. K.; AC |
41.0 | 330. | N/A | Markovnik, Sachek, et al., 1979 | Based on data from 315. to 402. K.; AC |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
13.330 | 214.94 | Vasil'ev, Bykova, et al., 1991 | DH |
Entropy of fusion
ΔfusS (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
62.0 | 214.94 | Vasil'ev, Bykova, et al., 1991 | DH |
Henry's Law data
Go To: Top, Condensed 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: Rolf Sander
Henry's Law constant (water solution)
kH(T) = k°H exp(d(ln(kH))/d(1/T) ((1/T) - 1/(298.15 K)))
k°H = Henry's law constant for solubility in water at 298.15 K (mol/(kg*bar))
d(ln(kH))/d(1/T) = Temperature dependence constant (K)
k°H (mol/(kg*bar)) | d(ln(kH))/d(1/T) (K) | Method | Reference | Comment |
---|---|---|---|---|
1.9 | Q | N/A | missing citation give several references for the Henry's law constants but don't assign them to specific species. Value at T = 303. K. | |
4.9 | 6500. | M | N/A | The data from Table 1 by missing citation was used to redo the regression analysis. The data for acetone in their Table 2 is wrong. |
4.7 | M | Buttery, Ling, et al., 1969 |
References
Go To: Top, Condensed phase thermochemistry data, Phase change data, Henry's Law data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Vasil'ev, Bykova, et al., 1991
Vasil'ev, V.G.; Bykova, T.A.; Lebedev, B.V.,
Thermodynamics of hexanal at 0-330K,
Zhur. Fiz. Khim., 1991, 65(1), 51-54. [all data]
Anonymous, 1953
Anonymous, R.,
, Physical Properties of Chemical Substances, Dow Chemical Company, 1953. [all data]
Timmermans, 1953
Timmermans, J.,
Physical Constants of Crystaline Organic Compounds, Mass on & Cie: Paris, France, 1953. [all data]
Vasil'ev, Bykova, et al., 1991, 2
Vasil'ev, V.G.; Bykova, T.A.; Lebedev, B.V.,
Thermodynamics of hexanal at 0-330 K,
Zh. Fiz. Khim., 1991, 65, 51-4. [all data]
Gude and Teja, 1994
Gude, M.T.; Teja, A.S.,
The Critical Properties of Several n-Alkanals, Tetralin and NMP,
Experimental Results for DIPPR 1990-91 Projects on Phase Equilibria and Pure Component Properties, 1994, 1994, DIPPR Data Series No. 2, p.174-83. [all data]
Teja and Rosenthal, 1990
Teja, A.S.; Rosenthal, D.J.,
The Critical Pressures and Temperatures of Twelve Substances Using A Low Residence Time Flow Apparatus,
AIChE Symp. Ser., 1990, 86, 279, 133-7. [all data]
Verevkin, Krasnykh, et al., 2003
Verevkin, Sergey P.; Krasnykh, Eugen L.; Vasiltsova, Tatiana V.; Koutek, Bohumir; Doubsky, Jan; Heintz, Andreas,
Vapor pressures and enthalpies of vaporization of a series of the linear aliphatic aldehydes,
Fluid Phase Equilibria, 2003, 206, 1-2, 331-339, https://doi.org/10.1016/S0378-3812(03)00035-9
. [all data]
D'yakova, Korichev, et al., 1981
D'yakova, G.N.; Korichev, G.L.; Korkhova, A.D.; Vasil'eva, T.F.; Vasil'ev, I.A.,
Zh. Prikl. Khim. (Leningrad), 1981, 54, 1644. [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]
Palczewska-Tulinska and Oracz, 2006
Palczewska-Tulinska, Marcela; Oracz, Pawel,
Vapor Pressures of Hexanal, 2-Methylcyclohexanone, and 2-Cyclohexen-1-one,
J. Chem. Eng. Data, 2006, 51, 2, 639-641, https://doi.org/10.1021/je0504358
. [all data]
Markovnik, Sachek, et al., 1979
Markovnik, V.S.; Sachek, A.I.; Peshchenko, A.D.; Shvaro, O.V.; Andreevskii, D.N.; Olizarevich, N.M.,
Termodin. Org. Soedin., 1979, 107. [all data]
Buttery, Ling, et al., 1969
Buttery, R.G.; Ling, L.C.; Guadagni, D.G.,
Volatilities Aldehydes, Ketones, and Esters in Dilute Water Solution,
J. Agric. Food Chem., 1969, 17, 385-389. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, Henry's Law 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 d(ln(kH))/d(1/T) Temperature dependence parameter for Henry's Law constant k°H Henry's Law constant at 298.15K 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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