- InChI
- InChI=1S/C5H8O2/c1-2-3-4-5(6)7/h3-4H,2H2,1H3,(H,6,7)
- InChI Key
- YIYBQIKDCADOSF-UHFFFAOYSA-N
- Formula
- C5H8O2
- SMILES
- CCC=CC(=O)O
- Molecular Weight1
- 100.12
- CAS
- 626-98-2
- Other Names
-
- C2H5CH=CHCOOH
- Pent-2-enoic acid
- ΔcH°liquid : Standard liquid enthalpy of combustion (kJ/mol).
- Cp,gas : Ideal gas heat capacity (J/mol×K).
- η : Dynamic viscosity (Pa×s).
- ΔfG° : Standard Gibbs free energy of formation (kJ/mol).
- ΔfH°gas : Enthalpy of formation at standard conditions (kJ/mol).
- ΔfusH° : Enthalpy of fusion at standard conditions (kJ/mol).
- ΔvapH° : Enthalpy of vaporization at standard conditions (kJ/mol).
- IE : Ionization energy (eV).
- log10WS : Log10 of Water solubility in mol/l.
- logPoct/wat : Octanol/Water partition coefficient.
- McVol : McGowan's characteristic volume (ml/mol).
- Pc : Critical Pressure (kPa).
- Pvap : Vapor pressure (kPa).
- Inp : Non-polar retention indices.
- Tboil : Normal Boiling Point Temperature (K).
- Tc : Critical Temperature (K).
- Tfus : Normal melting (fusion) point (K).
- Vc : Critical Volume (m3/kmol).
- 1: Molecular weight from the IUPAC atomic weights tables.
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Physical Properties
| Property | Value | Unit | Source |
|---|---|---|---|
| ΔcH°liquid | -2664.40 ± 2.50 | kJ/mol | NIST |
| ΔfG° | -194.30 | kJ/mol | Joback Calculated Property |
| ΔfH°gas | -294.12 | kJ/mol | Joback Calculated Property |
| ΔfusH° | 14.59 | kJ/mol | Joback Calculated Property |
| ΔvapH° | 50.11 | kJ/mol | Joback Calculated Property |
| IE | 10.14 | eV | NIST |
| log10WS | -0.87 | Crippen Calculated Property | |
| logPoct/wat | 1.037 | Crippen Calculated Property | |
| McVol | 84.450 | ml/mol | McGowan Calculated Property |
| Pc | 4498.26 | kPa | Joback Calculated Property |
| Inp | 873.00 | NIST | |
| Tboil | 464.01 | K | Joback Calculated Property |
| Tc | 644.72 | K | Joback Calculated Property |
| Tfus | 251.78 | K | Joback Calculated Property |
| Vc | 0.321 | m3/kmol | Joback Calculated Property |
Temperature Dependent Properties
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Cp,gas | [166.69; 205.26] | J/mol×K | [464.01; 644.72] | 
|
| Cp,gas | 166.69 | J/mol×K | 464.01 | Joback Calculated Property |
| Cp,gas | 173.98 | J/mol×K | 494.13 | Joback Calculated Property |
| Cp,gas | 180.90 | J/mol×K | 524.25 | Joback Calculated Property |
| Cp,gas | 187.47 | J/mol×K | 554.36 | Joback Calculated Property |
| Cp,gas | 193.71 | J/mol×K | 584.48 | Joback Calculated Property |
| Cp,gas | 199.64 | J/mol×K | 614.60 | Joback Calculated Property |
| Cp,gas | 205.26 | J/mol×K | 644.72 | Joback Calculated Property |
| η | [0.0001963; 0.0276361] | Pa×s | [251.78; 464.01] |
|
| η | 0.0276361 | Pa×s | 251.78 | Joback Calculated Property |
| η | 0.0072921 | Pa×s | 287.15 | Joback Calculated Property |
| η | 0.0025772 | Pa×s | 322.52 | Joback Calculated Property |
| η | 0.0011187 | Pa×s | 357.89 | Joback Calculated Property |
| η | 0.0005643 | Pa×s | 393.27 | Joback Calculated Property |
| η | 0.0003187 | Pa×s | 428.64 | Joback Calculated Property |
| η | 0.0001963 | Pa×s | 464.01 | Joback Calculated Property |
Correlations
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Pvap | [1.33; 202.63] | kPa | [360.52; 492.53] |
The Yaw...
|
| Equation | ln(Pvp) = A + B/(T + C) | |||
| Coefficient A | 1.62653e+01 | |||
| Coefficient B | -4.59894e+03 | |||
| Coefficient C | -7.26860e+01 | |||
| Temperature range, min. | 360.52 | |||
| Temperature range, max. | 492.53 | |||
| Pvap | 1.33 | kPa | 360.52 | Calculated Property |
| Pvap | 2.89 | kPa | 375.19 | Calculated Property |
| Pvap | 5.84 | kPa | 389.86 | Calculated Property |
| Pvap | 11.09 | kPa | 404.52 | Calculated Property |
| Pvap | 19.94 | kPa | 419.19 | Calculated Property |
| Pvap | 34.19 | kPa | 433.86 | Calculated Property |
| Pvap | 56.20 | kPa | 448.53 | Calculated Property |
| Pvap | 88.99 | kPa | 463.19 | Calculated Property |
| Pvap | 136.30 | kPa | 477.86 | Calculated Property |
| Pvap | 202.63 | kPa | 492.53 | Calculated Property |
Similar Compounds
Find more compounds similar to 2-Pentenoic acid.
Sources
- Crippen Method
- Crippen Method
- Joback Method
- McGowan Method
- NIST Webbook
- The Yaws Handbook of Vapor Pressure
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