- InChI
- InChI=1S/C7H14O2/c1-4-5-9-7(8)6(2)3/h6H,4-5H2,1-3H3
- InChI Key
- AZFUASHXSOTBNU-UHFFFAOYSA-N
- Formula
- C7H14O2
- SMILES
- CCCOC(=O)C(C)C
- Molecular Weight1
- 130.18
- CAS
- 644-49-5
- Other Names
-
- Isobutyric acid n-propyl ester
- Isobutyric acid, propyl ester
- N-Propyl iso-butyrate
- PROPYL ESTER ISOBUTYRIC ACID
- Propyl 2-methylpropanoate
- Propyl isobutanoate
- Propyl isobutyrate
- n-Propyl 2-methylpropanoate
- n-Propyl isobutyrate
- ω : Acentric Factor.
- Cp,gas : Ideal gas heat capacity (J/mol×K).
- η : Dynamic viscosity (Pa×s).
- 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).
- ΔvapH : Enthalpy of vaporization at a given temperature (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).
- ρl : Liquid Density (kg/m3).
- Inp : Non-polar retention indices.
- Ip : 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 |
|---|---|---|---|
| ω | 0.4579 | Relay (1.0) Calculated Property | |
| ΔfH°gas | -512.45 | kJ/mol | Relay (1.0) Calculated Property |
| ΔfusH° | 14.73 | kJ/mol | Joback Calculated Property |
| ΔvapH° | 40.98 | kJ/mol | Relay (1.0) Calculated Property |
| IE | 9.84 | eV | Relay (1.0) Calculated Property |
| log10WS | -1.48 | Relay (1.0) Calculated Property | |
| logPoct/wat | 1.596 | Crippen Calculated Property | |
| McVol | 116.930 | ml/mol | McGowan Calculated Property |
| Pc | 2830.00 | kPa | KDB |
| Inp | [836.00; 880.00] |
|
|
| Inp | Outlier 880.00 | NIST | |
| Inp | 842.00 | NIST | |
| Inp | 860.00 | NIST | |
| Inp | 862.00 | NIST | |
| Inp | 856.00 | NIST | |
| Inp | 841.00 | NIST | |
| Inp | 836.00 | NIST | |
| Inp | 838.00 | NIST | |
| Inp | 836.00 | NIST | |
| Inp | 836.00 | NIST | |
| Inp | 836.00 | NIST | |
| Inp | 866.00 | NIST | |
| Inp | 866.00 | NIST | |
| Inp | 844.00 | NIST | |
| Inp | 842.00 | NIST | |
| Inp | 836.00 | NIST | |
| Inp | 842.00 | NIST | |
| Inp | 866.00 | NIST | |
| Inp | Outlier 880.00 | NIST | |
| Inp | 841.00 | NIST | |
| Inp | 836.00 | NIST | |
| Ip | [1044.00; 1108.00] |
|
|
| Ip | 1108.00 | NIST | |
| Ip | 1100.00 | NIST | |
| Ip | 1094.00 | NIST | |
| Ip | 1051.00 | NIST | |
| Ip | 1058.00 | NIST | |
| Ip | 1054.00 | NIST | |
| Ip | 1044.00 | NIST | |
| Ip | 1044.00 | NIST | |
| Ip | 1058.00 | NIST | |
| Tboil | [407.10; 412.00] | K |
|
| Tboil | 408.60 | K | KDB |
| Tboil | 407.10 ± 0.50 | K | NIST |
| Tboil | 412.00 ± 2.00 | K | NIST |
| Tc | [579.40; 589.20] | K |
|
| Tc | 581.00 | K | KDB |
| Tc | 579.40 ± 0.60 | K | NIST |
| Tc | 589.20 ± 6.00 | K | NIST |
| Tfus | 187.08 | K | Relay (1.0) Calculated Property |
| Vc | 0.453 | m3/kmol | Relay (1.0) Calculated Property |
Cheméo can also estimate Standard Gibbs free energy of formation 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.
Temperature Dependent Properties
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| ΔvapH | 50.50 | kJ/mol | 337.00 | NIST |
| ρl | 884.00 | kg/m3 | 273.00 | KDB |
Correlations
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Cp,gas | [170.00; 389.11] | 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 | 2.02520e+01 | |||
| Coefficient B | 6.19960e-01 | |||
| Coefficient C | -2.65600e-04 | |||
| Coefficient D | 1.45000e-08 | |||
| Coefficient E | 0.00000e+00 | |||
| Temperature range, min. | 273.00 | |||
| Temperature range, max. | 1000.00 | |||
| Cp,gas | 170.00 | J/mol×K | 273.00 | Calculated Property |
| Cp,gas | 206.98 | J/mol×K | 353.78 | Calculated Property |
| Cp,gas | 240.69 | J/mol×K | 434.56 | Calculated Property |
| Cp,gas | 271.19 | J/mol×K | 515.33 | Calculated Property |
| Cp,gas | 298.51 | J/mol×K | 596.11 | Calculated Property |
| Cp,gas | 322.70 | J/mol×K | 676.89 | Calculated Property |
| Cp,gas | 343.81 | J/mol×K | 757.67 | Calculated Property |
| Cp,gas | 361.89 | J/mol×K | 838.44 | Calculated Property |
| Cp,gas | 376.97 | J/mol×K | 919.22 | Calculated Property |
| Cp,gas | 389.11 | J/mol×K | 1000.00 | Calculated Property |
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| η | [0.0106922; 0.0002626] | Pa×s | [195.98; 408.24] |
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 | -1.16670e+01 | |||
| Coefficient B | 1.39710e+03 | |||
| 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. | 195.98 | |||
| Temperature range, max. | 408.24 | |||
| η | 0.0106922 | Pa×s | 195.98 | Calculated Property |
| η | 0.0049718 | Pa×s | 219.56 | Calculated Property |
| η | 0.0026821 | Pa×s | 243.15 | Calculated Property |
| η | 0.0016137 | Pa×s | 266.73 | Calculated Property |
| η | 0.0010545 | Pa×s | 290.32 | Calculated Property |
| η | 0.0007345 | Pa×s | 313.90 | Calculated Property |
| η | 0.0005382 | Pa×s | 337.49 | Calculated Property |
| η | 0.0004107 | Pa×s | 361.07 | Calculated Property |
| η | 0.0003239 | Pa×s | 384.66 | Calculated Property |
| η | 0.0002626 | Pa×s | 408.24 | Calculated Property |
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Pvap | [0.10; 102.11] | kPa | [267.15; 407.15] |
KDB Vapor Pressure Data
|
| Equation | ln(Y) = A + B/T + C·ln(T) + D·T² + E/T² Y is Pvap in kPa, T in K | |||
| Coefficient A | 2.37727e+02 | |||
| Coefficient B | -1.41868e+04 | |||
| Coefficient C | -3.38556e+01 | |||
| Coefficient D | 3.12954e-05 | |||
| Coefficient E | 0.00000e+00 | |||
| Temperature range, min. | 267.15 | |||
| Temperature range, max. | 407.15 | |||
| Pvap | 0.10 | kPa | 267.15 | Calculated Property |
| Pvap | 0.35 | kPa | 282.71 | Calculated Property |
| Pvap | 1.04 | kPa | 298.26 | Calculated Property |
| Pvap | 2.64 | kPa | 313.82 | Calculated Property |
| Pvap | 5.94 | kPa | 329.37 | Calculated Property |
| Pvap | 12.07 | kPa | 344.93 | Calculated Property |
| Pvap | 22.55 | kPa | 360.48 | Calculated Property |
| Pvap | 39.33 | kPa | 376.04 | Calculated Property |
| Pvap | 64.84 | kPa | 391.59 | Calculated Property |
| Pvap | 102.11 | kPa | 407.15 | Calculated Property |
| Pvap | [0.13; 103.31] | kPa | [266.90; 407.10] |
NIST
|
| Equation | ln(Y) = A + B/(T + C) Y is Pvap in kPa, T in K | |||
| Coefficient A | 1.47400e+01 | |||
| Coefficient B | -3.55799e+03 | |||
| Coefficient C | -5.49020e+01 | |||
| Reference | Stull, 1947 | |||
| Comment | Coefficents calculated by NIST from author's data. | |||
| Temperature range, min. | 266.90 | |||
| Temperature range, max. | 407.10 | |||
| Pvap | 0.13 | kPa | 266.90 | Calculated Property |
| Pvap | 0.41 | kPa | 282.48 | Calculated Property |
| Pvap | 1.11 | kPa | 298.06 | Calculated Property |
| Pvap | 2.69 | kPa | 313.63 | Calculated Property |
| Pvap | 5.87 | kPa | 329.21 | Calculated Property |
| Pvap | 11.78 | kPa | 344.79 | Calculated Property |
| Pvap | 22.02 | kPa | 360.37 | Calculated Property |
| Pvap | 38.76 | kPa | 375.94 | Calculated Property |
| Pvap | 64.73 | kPa | 391.52 | Calculated Property |
| Pvap | 103.31 | kPa | 407.10 | Calculated Property |
Similar Compounds
Find more compounds similar to Propanoic acid, 2-methyl-, propyl ester.
Sources
- KDB Vapor Pressure Data
- Cheméo Relay (1.0)
- Crippen Method
- Crippen Method
- Joback Method
- KDB
- McGowan Method
- NIST Webbook
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