2-Propenoic acid
- Formula: C3H4O2
- Molecular weight: 72.0627
- IUPAC Standard InChI: InChI=1S/C3H4O2/c1-2-3(4)5/h2H,1H2,(H,4,5)
- IUPAC Standard InChIKey: NIXOWILDQLNWCW-UHFFFAOYSA-N
- CAS Registry Number: 79-10-7
- 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: Acrylic acid; Acroleic acid; Ethylenecarboxylic acid; Propenoic acid; Vinylformic acid; CH2=CHCOOH; Propene acid; Kyselina akrylova; Rcra waste number U008; Glacial acrylic acid; NSC 4765
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Gas phase thermochemistry data
Go To: Top, Reaction 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:
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 | -330.7 ± 4.2 | kJ/mol | Ccb | Van-chin-syan, Kochubei, et al., 1996 | ALS |
| ΔfH°gas | -324.7 | kJ/mol | N/A | Vilcu and Perisanu, 1980 | Value computed using ΔfHliquid° value of -377.8±9.3 kj/mol from Vilcu and Perisanu, 1980 and ΔvapH° value of 53.1 kj/mol from Van-chin-syan, Kochubei, et al., 1996.; DRB |
| ΔfH°gas | -336.9 ± 2.3 | kJ/mol | Eqk | Guthrie, 1978 | ALS |
Constant pressure heat capacity of gas
| Cp,gas (J/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 41.03 | 50. | Thermodynamics Research Center, 1997 | p=1 bar.; GT |
| 45.40 | 100. | ||
| 52.33 | 150. | ||
| 61.50 | 200. | ||
| 76.61 | 273.15 | ||
| 81.80 | 298.15 | ||
| 82.18 | 300. | ||
| 101.24 | 400. | ||
| 116.65 | 500. | ||
| 128.73 | 600. | ||
| 138.32 | 700. | ||
| 146.12 | 800. | ||
| 152.60 | 900. | ||
| 158.08 | 1000. | ||
| 162.8 | 1100. | ||
| 166.8 | 1200. | ||
| 170.2 | 1300. | ||
| 173.2 | 1400. | ||
| 175.8 | 1500. |
Reaction thermochemistry 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:
B - John E. Bartmess
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.
Individual Reactions
C3H3O2- + =
By formula: C3H3O2- + H+ = C3H4O2
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 1440. ± 12. | kJ/mol | G+TS | Graul, Schnute, et al., 1990 | gas phase; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 1411. ± 12. | kJ/mol | CIDC | Graul, Schnute, et al., 1990 | gas phase; B |
+
=
+
By formula: C4H10O + C3H4O2 = C7H12O2 + H2O
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 16. | kJ/mol | Eqk | Selyakova, Vytnov, et al., 1976 | liquid phase; Heat of esterification 60-180 C; ALS |
+
=
By formula: H2 + C3H4O2 = C3H6O2
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -127.0 ± 0.8 | kJ/mol | Chyd | Skinner and Snelson, 1959 | liquid phase; solvent: Acetic acid; ALS |
Henry's Law 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 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 |
|---|---|---|---|---|
| 2400. | Q | N/A | missing citation give several references for the Henry's law constants but don't assign them to specific species. |
References
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry 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.
Van-chin-syan, Kochubei, et al., 1996
Van-chin-syan, Yu.Ya.; Kochubei, V.V.; Sergeev, V.V.; Raevskii, Yu.A.; Gerasimchuk, S.I.; Kotovich, Kh.Z.,
Thermodynamic properties of some acids and aldehydes of the acrylic series,
Sov. J. Chem. Phys. (Engl. Transl.), 1996, 70, 1789-1794, In original 1932. [all data]
Vilcu and Perisanu, 1980
Vilcu, R.; Perisanu, S.,
The ideal gas state enthalpies of formation of some monomers,
Rev. Roum. Chim., 1980, 25, 619-624. [all data]
Guthrie, 1978
Guthrie, J.P.,
Equilibrium constants for a series of simple aldol condensations, and linear free energy relations with other carbonyl addition reactions,
Can. J. Chem., 1978, 56, 962-973. [all data]
Thermodynamics Research Center, 1997
Thermodynamics Research Center,
Selected Values of Properties of Chemical Compounds., Thermodynamics Research Center, Texas A&M University, College Station, Texas, 1997. [all data]
Graul, Schnute, et al., 1990
Graul, S.T.; Schnute, M.E.; Squires, R.R.,
Gas-Phase Acidities of Carboxylic Acids and Alcohols from Collision-Induced Dissociation of Dimer Cluster Ions,
Int. J. Mass Spectrom. Ion Proc., 1990, 96, 2, 181, https://doi.org/10.1016/0168-1176(90)87028-F
. [all data]
Selyakova, Vytnov, et al., 1976
Selyakova, V.A.; Vytnov, G.F.; Sineokov, A.P.,
Study of the esterification of acrylic acid by butyl alcohol,
Russ. J. Phys. Chem. (Engl. Transl.), 1976, 50, 1692-1694. [all data]
Skinner and Snelson, 1959
Skinner, H.A.; Snelson, A.,
Heats of hydrogenation Part 3.,
Trans. Faraday Soc., 1959, 55, 405-407. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Henry's Law data, References
- Symbols used in this document:
Cp,gas Constant pressure heat capacity of gas 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 ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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