- InChI
- InChI=1S/C4H8/c1-3-4-2/h3-4H,1-2H3
- InChI Key
- IAQRGUVFOMOMEM-UHFFFAOYSA-N
- Formula
- C4H8
- SMILES
- CC=CC
- Molecular Weight1
- 56.11
- CAS
- 107-01-7
- Other Names
-
- But-2-ene
- CH3CH=CHCH3
- Pseudobutylene
- «beta»-Butene
- «beta»-Butylene
- ω : Acentric Factor.
- 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).
- 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.
- Ip : Polar retention indices.
- γ : Surface Tension (N/m).
- 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 |
|---|---|---|---|
| ω | 0.2233 | Relay (1.0) Calculated Property | |
| ΔfG° | 63.02 | kJ/mol | Joback Calculated Property |
| ΔfH°gas | -22.85 | kJ/mol | Relay (1.0) Calculated Property |
| ΔfusH° | 6.32 | kJ/mol | Joback Calculated Property |
| ΔvapH° | 21.48 | kJ/mol | Relay (1.0) Calculated Property |
| IE | 9.13 | eV | NIST |
| logPoct/wat | 1.582 | Crippen Calculated Property | |
| McVol | 62.920 | ml/mol | McGowan Calculated Property |
| Pc | 4162.33 | kPa | Joback Calculated Property |
| Inp | [406.00; 411.00] |
|
|
| Inp | 406.00 | NIST | |
| Inp | 406.00 | NIST | |
| Inp | 411.00 | NIST | |
| Ip | 674.00 | NIST | |
| Tboil | 276.83 | K | Relay (1.0) Calculated Property |
| Tc | 426.60 | K | Relay (1.0) Calculated Property |
| Tfus | 167.65 | K | Jean-Claude Bradley Open Melting Point Dataset (2014, CC0) Compiled value |
| Vc | 0.239 | m3/kmol | Relay (1.0) Calculated Property |
Cheméo can also estimate Log10 of Water solubility in mol/l for this compound, but it falls outside the models' validated range, so it is not shown here. Open the prediction tool to compute it on demand.
Correlations
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Cp,gas | [76.33; 195.11] | J/mol×K | [273.00; 1000.00] |
Joback Predicted correlation
|
| Equation | Y = A + B·T + C·T² + D·T³ + E·T⁴ Y is Cp,gas in J/mol×K, T in K | |||
| Coefficient A | -1.49300e+01 | |||
| Coefficient B | 4.03840e-01 | |||
| Coefficient C | -2.77600e-04 | |||
| Coefficient D | 8.38000e-08 | |||
| Coefficient E | 0.00000e+00 | |||
| Temperature range, min. | 273.00 | |||
| Temperature range, max. | 1000.00 | |||
| Cp,gas | 76.33 | J/mol×K | 273.00 | Calculated Property |
| Cp,gas | 96.91 | J/mol×K | 353.78 | Calculated Property |
| Cp,gas | 115.02 | J/mol×K | 434.56 | Calculated Property |
| Cp,gas | 130.93 | J/mol×K | 515.33 | Calculated Property |
| Cp,gas | 144.91 | J/mol×K | 596.11 | Calculated Property |
| Cp,gas | 157.22 | J/mol×K | 676.89 | Calculated Property |
| Cp,gas | 168.14 | J/mol×K | 757.67 | Calculated Property |
| Cp,gas | 177.91 | J/mol×K | 838.44 | Calculated Property |
| Cp,gas | 186.81 | J/mol×K | 919.22 | Calculated Property |
| Cp,gas | 195.11 | J/mol×K | 1000.00 | Calculated Property |
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| η | [0.0007926; 0.0001157] | Pa×s | [167.65; 326.43] |
Joback Predicted correlation
|
| Equation | Y = exp(A + B/T + C·ln(T) + D·T^E) Y is η in Pa×s, T in K | |||
| Coefficient A | -1.10967e+01 | |||
| Coefficient B | 6.63320e+02 | |||
| Coefficient C | 0.00000e+00 | |||
| Coefficient D | 0.00000e+00 | |||
| Coefficient E | 0.00000e+00 | |||
| Comment | Liquid phase. Joback/Reid (1987), valid from Tf to 0.7·Tc. | |||
| Temperature range, min. | 167.65 | |||
| Temperature range, max. | 326.43 | |||
| η | 0.0007926 | Pa×s | 167.65 | Calculated Property |
| η | 0.0005438 | Pa×s | 185.29 | Calculated Property |
| η | 0.0003984 | Pa×s | 202.94 | Calculated Property |
| η | 0.0003067 | Pa×s | 220.58 | Calculated Property |
| η | 0.0002455 | Pa×s | 238.22 | Calculated Property |
| η | 0.0002026 | Pa×s | 255.86 | Calculated Property |
| η | 0.0001714 | Pa×s | 273.51 | Calculated Property |
| η | 0.0001480 | Pa×s | 291.15 | Calculated Property |
| η | 0.0001299 | Pa×s | 308.79 | Calculated Property |
| η | 0.0001157 | Pa×s | 326.43 | Calculated Property |
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Pvap | [1.33; 202.68] | kPa | [197.90; 294.59] |
The Yaws Handbook of Vapor Pressure
|
| Equation | ln(Y) = A + B/(T + C) Y is Pvap in kPa, T in K | |||
| Coefficient A | 1.46728e+01 | |||
| Coefficient B | -2.59166e+03 | |||
| Coefficient C | -1.77390e+01 | |||
| Temperature range, min. | 197.90 | |||
| Temperature range, max. | 294.59 | |||
| Pvap | 1.33 | kPa | 197.90 | Calculated Property |
| Pvap | 3.00 | kPa | 208.64 | Calculated Property |
| Pvap | 6.17 | kPa | 219.39 | Calculated Property |
| Pvap | 11.83 | kPa | 230.13 | Calculated Property |
| Pvap | 21.29 | kPa | 240.87 | Calculated Property |
| Pvap | 36.29 | kPa | 251.62 | Calculated Property |
| Pvap | 59.04 | kPa | 262.36 | Calculated Property |
| Pvap | 92.20 | kPa | 273.10 | Calculated Property |
| Pvap | 138.89 | kPa | 283.85 | Calculated Property |
| Pvap | 202.68 | kPa | 294.59 | Calculated Property |
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| γ | [0.03; 0.02] | N/m | [167.15; 274.05] |
Jasper (1972), surface tension of pure liquid compounds Compiled value
|
| Equation | Y = A + B·T + C·T² + D·T³ + E·T⁴ Y is γ in N/m, T in K | |||
| Coefficient A | 5.13190e-02 | |||
| Coefficient B | -1.28900e-04 | |||
| Coefficient C | 0.00000e+00 | |||
| Coefficient D | 0.00000e+00 | |||
| Coefficient E | 0.00000e+00 | |||
| Temperature range, min. | 167.15 | |||
| Temperature range, max. | 274.05 | |||
| γ | 0.03 | N/m | 167.15 | Calculated Property |
| γ | 0.03 | N/m | 179.03 | Calculated Property |
| γ | 0.03 | N/m | 190.91 | Calculated Property |
| γ | 0.03 | N/m | 202.78 | Calculated Property |
| γ | 0.02 | N/m | 214.66 | Calculated Property |
| γ | 0.02 | N/m | 226.54 | Calculated Property |
| γ | 0.02 | N/m | 238.42 | Calculated Property |
| γ | 0.02 | N/m | 250.29 | Calculated Property |
| γ | 0.02 | N/m | 262.17 | Calculated Property |
| γ | 0.02 | N/m | 274.05 | Calculated Property |
Similar Compounds
Find more compounds similar to 2-Butene.
Sources
- Jean-Claude Bradley Open Melting Point Dataset (2014, CC0) ChEDL chemicals 1.5.2, from Bradley, J.-C.; Williams, A.; Lang, A. Jean-Claude Bradley Open Melting Point Dataset. Figshare, 2014 (CC0).
- Jasper (1972), surface tension of pure liquid compounds ChEDL chemicals 1.5.2, from Jasper, J. J. The Surface Tension of Pure Liquid Compounds. J. Phys. Chem. Ref. Data 1972, 1, 841-1010 (as transcribed in Lange's Handbook).
- Cheméo Relay (1.0)
- Crippen Method
- Crippen Method
- Joback Method
- McGowan Method
- NIST Webbook
- The Yaws Handbook of Vapor Pressure
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