Benzaldehyde
- Formula: C7H6O
- Molecular weight: 106.1219
- IUPAC Standard InChIKey: HUMNYLRZRPPJDN-UHFFFAOYSA-N
- CAS Registry Number: 100-52-7
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
View 3d structure (requires JavaScript / HTML 5) - Other names: Artificial Almond Oil; Benzaldehyde FFC; Benzenecarbonal; Benzenecarboxaldehyde; Benzoic aldehyde; Phenylmethanal; Almond artificial essential oil; Phenylmethanal benzenecarboxaldehyde; NCI-C56133; Oil of Bitter Almond; Artificial essential oil of almond; Benzene carbaldehyde; NA 1989; Artifical essential oil of almond; Artificial bitter almond oil; Benzenemethylal; Benzoyl hydride; Ethereal oil of bitter almonds; Benzylaldehyde; NSC 7917; Benzyaldehyde
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Gas 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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -36.8 ± 3.0 | kJ/mol | Ccb | Ambrose, Connett, et al., 1975 | ALS |
ΔfH°gas | -33.26 | kJ/mol | Cm | Kudchadker and Kudchadker, 1975 | ALS |
ΔfH°gas | -37.2 ± 0.92 | kJ/mol | Ccb | Lebedeva and Katin, 1972 | Reanalyzed by Pedley, Naylor, et al., 1986, Original value = -33. ± 2. kJ/mol; ALS |
ΔfH°gas | -37. ± 4.2 | kJ/mol | Eqk | Solly and Benson, 1971 | ALS |
ΔfH°gas | -40.4 | kJ/mol | N/A | Landrieu, Baylocq, et al., 1929 | Value computed using ΔfHliquid° value of -86.2 kj/mol from Landrieu, Baylocq, et al., 1929 and ΔvapH° value of 45.9 kj/mol from Lebedeva and Katin, 1972.; DRB |
Constant pressure heat capacity of gas
Cp,gas (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
102.8 | 273.15 | Ambrose D., 1975 | Selected entropy values agree with the observed ones within experimental error. Entropies obtained from other statistical calculations [ Sarin V.N., 1973, Kudchadker S.A., 1975] differ substantially from experimental values.; GT |
111.7 | 298.15 | ||
112.3 | 300. | ||
146.5 | 400. | ||
175.4 | 500. | ||
198.6 | 600. | ||
217.2 | 700. | ||
232.2 | 800. | ||
244.6 | 900. | ||
255.0 | 1000. | ||
263.6 | 1100. | ||
271.0 | 1200. | ||
277.3 | 1300. | ||
282.7 | 1400. | ||
287.3 | 1500. |
Phase change data
Go To: Top, Gas 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
DRB - Donald R. Burgess, Jr.
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 | 452. ± 7. | K | AVG | N/A | Average of 13 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 247. | K | N/A | Buckingham and Donaghy, 1982 | BS |
Tfus | 216.65 | K | N/A | Biltz, Fischer, et al., 1930 | Uncertainty assigned by TRC = 0.5 K; TRC |
Tfus | 217.55 | K | N/A | Timmermans, 1921 | Uncertainty assigned by TRC = 0.5 K; TRC |
Tfus | 216.25 | K | N/A | Timmermans, 1921 | Uncertainty assigned by TRC = 0.6 K; TRC |
Tfus | 259.7 | K | N/A | Altschul and Von Schneider, 1895 | Uncertainty assigned by TRC = 0.5 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 216.02 | K | N/A | Ambrose, Connett, et al., 1975, 2 | Uncertainty assigned by TRC = 0.02 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 690. | K | N/A | Anselme and Teja, 1990 | Uncertainty assigned by TRC = 20. K; Tc > 690 K, which was observed with decomposition; TRC |
Tc | 695. | K | N/A | Ambrose, Connett, et al., 1975, 2 | Uncertainty assigned by TRC = 5. K; Visual, Decomp, VPX; TRC |
Tc | 625.15 | K | N/A | Glaser and Ruland, 1957 | Uncertainty assigned by TRC = 3. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 46.50 | bar | N/A | Ambrose, Connett, et al., 1975, 2 | Uncertainty assigned by TRC = 0.4646 bar; Visual, Decomp, VPX; TRC |
Pc | 21.7849 | bar | N/A | Glaser and Ruland, 1957 | Uncertainty assigned by TRC = 3.0398 bar; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 48. ± 6. | kJ/mol | AVG | N/A | Average of 7 values; Individual data points |
Reduced pressure boiling point
Tboil (K) | Pressure (bar) | Reference | Comment |
---|---|---|---|
335.2 | 0.013 | Weast and Grasselli, 1989 | BS |
452. | 1.00 | Buckingham and Donaghy, 1982 | BS |
335. | 0.013 | Buckingham and Donaghy, 1982 | BS |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
49.5 | 363. | A | Stephenson and Malanowski, 1987 | Based on data from 348. to 452. K.; AC |
43.8 | 424. | A | Stephenson and Malanowski, 1987 | Based on data from 409. to 481. K.; AC |
48.6 | 326. | A | Stephenson and Malanowski, 1987 | Based on data from 311. to 376. K.; AC |
45.5 | 385. | A | Stephenson and Malanowski, 1987 | Based on data from 370. to 475. K.; AC |
41.9 | 480. | A | Stephenson and Malanowski, 1987 | Based on data from 465. to 541. K.; AC |
40.6 | 544. | A | Stephenson and Malanowski, 1987 | Based on data from 529. to 599. K.; AC |
47.0 | 288. | A,BG | Stephenson and Malanowski, 1987 | Based on data from 273. to 373. K. See also De Maré, Lehman, et al., 1973.; AC |
50.3 | 311. | V | Ambrose, Connett, et al., 1975 | ALS |
42.5 | 452. | EB | Ambrose, Connett, et al., 1975 | Based on data from 311. to 404. K.; AC |
54.4 | 314. | N/A | Stull, 1947 | Based on data from 299. to 452. K.; AC |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (bar)
T = temperature (K)
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Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
273.14 to 322.06 | 5.21496 | 2337.539 | -5.103 | De Maré, Lehman, et al., 1973 | Coefficents calculated by NIST from author's data. |
299.4 to 452. | 3.87652 | 1380.729 | -94.98 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
9.320 | 216.02 | Ambrose, Connett, et al., 1975 | DH |
9.33 | 216. | Domalski and Hearing, 1996 | AC |
Entropy of fusion
ΔfusS (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
43.14 | 216.02 | Ambrose, Connett, et al., 1975 | DH |
Henry's Law data
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: 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 |
---|---|---|---|---|
39. | 4800. | L | N/A | |
42. | 4600. | 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. |
37. | 5100. | M | N/A | missing citation list effective values that take into account hydration of the aldehydes: kH = ([RCHO] + [RCH(OH)2]) / p(RCHO) |
36. | X | N/A | Value given here as quoted by missing citation. | |
36. | V | N/A |
References
Go To: Top, Gas 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.
Ambrose, Connett, et al., 1975
Ambrose, D.; Connett, J.E.; Green, J.H.S.; Hales, J.L.; Head, A.J.; Martin, J.F.,
Thermodynamic properties of organic oxygen compounds. 42. Physical and thermodynamic properties of benzaldehyde,
J. Chem. Thermodyn., 1975, 7, 1143-1157. [all data]
Kudchadker and Kudchadker, 1975
Kudchadker, S.A.; Kudchadker, A.P.,
Thermodynamic properties of oxygen compounds. III. Benzaldehyde and furfural (2-furaldehyde),
Ber. Bunsenges. Phys. Chem., 1975, 12, 432-437. [all data]
Lebedeva and Katin, 1972
Lebedeva, N.D.; Katin, Yu.A.,
Heats of combustion of certain monosubstituted benzenes,
Russ. J. Phys. Chem. (Engl. Transl.), 1972, 46, 1088. [all data]
Pedley, Naylor, et al., 1986
Pedley, J.B.; Naylor, R.D.; Kirby, S.P.,
Thermochemical Data of Organic Compounds, Chapman and Hall, New York, 1986, 1-792. [all data]
Solly and Benson, 1971
Solly, R.K.; Benson, S.W.,
Thermochemistry of the reaction of benzaldehyde with iodine. The enthalpy of formation of benzaldehyde and benzoyl iodide,
J. Chem. Thermodyn., 1971, 3, 203-209. [all data]
Landrieu, Baylocq, et al., 1929
Landrieu, P.; Baylocq, F.; Johnson, J.R.,
Etude thermochimique dans la serie furanique,
Bull. Soc. Chim. France, 1929, 45, 36-49. [all data]
Ambrose D., 1975
Ambrose D.,
Thermodynamic properties of organic oxygen compounds. 42. Physical and thermodynamic properties of benzaldehyde,
J. Chem. Thermodyn., 1975, 7, 1143-1157. [all data]
Sarin V.N., 1973
Sarin V.N.,
Thermodynamic properties in the gaseous state of certain monosubstituted benzenes,
Thermochim. Acta, 1973, 6, 39-46. [all data]
Kudchadker S.A., 1975
Kudchadker S.A.,
Thermodynamic properties of oxygen compounds. III. Benzaldehyde and furfural (2-furaldehyde),
Thermochim. Acta, 1975, 12, 432-437. [all data]
Buckingham and Donaghy, 1982
Buckingham, J.; Donaghy, S.M.,
Dictionary of Organic Compounds: Fifth Edition, Chapman and Hall, New York, 1982, 1. [all data]
Biltz, Fischer, et al., 1930
Biltz, W.; Fischer, W.; Wunnenberg, E.,
Molecular and Atomic Volumes. The Volume Requirements of Crystalline Organic Compounds and Low Temperatures,
Z. Phys. Chem., Abt. A, 1930, 151, 13-55. [all data]
Timmermans, 1921
Timmermans, J.,
The Freezing Points of Organic Substances IV. New Exp. Determinations,
Bull. Soc. Chim. Belg., 1921, 30, 62. [all data]
Altschul and Von Schneider, 1895
Altschul, M.; Von Schneider, B.,
Freezing points of some organic fluids,
Z. Phys. Chem., Stoechiom. Verwandtschaftsl., 1895, 16, 24. [all data]
Ambrose, Connett, et al., 1975, 2
Ambrose, D.; Connett, J.E.; Green, J.H.S.; Hales, J.L.; Head, A.J.; Martin, J.F.,
Thermodynamic properties of organic oxygen compounds 42. Physical and thermodynamic properties of benzaldehyde,
J. Chem. Thermodyn., 1975, 7, 1143. [all data]
Anselme and Teja, 1990
Anselme, M.J.; Teja, A.S.,
The critical properties of rapidly reacting substances,
AIChE Symp. Ser., 1990, 86, 279, 128-32. [all data]
Glaser and Ruland, 1957
Glaser, F.; Ruland, H.,
Untersuchungsen über dampfdruckkurven und kritische daten einiger technisch wichtiger organischer substanzen,
Chem. Ing. Techn., 1957, 29, 772. [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]
De Maré, Lehman, et al., 1973
De Maré, G.R.; Lehman, T.; Termonia, M.,
The vapour pressure of benzaldehyde between 273 and 376 K,
The Journal of Chemical Thermodynamics, 1973, 5, 6, 829-832, https://doi.org/10.1016/S0021-9614(73)80044-8
. [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]
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, Gas phase thermochemistry data, Phase change data, Henry's Law data, References
- Symbols used in this document:
Cp,gas Constant pressure heat capacity of gas Pc Critical pressure 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 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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