- InChI
- InChI=1S/C18H26O4/c1-3-5-9-13-21-17(19)15-11-7-8-12-16(15)18(20)22-14-10-6-4-2/h7-8,11-12H,3-6,9-10,13-14H2,1-2H3
- InChI Key
- IPKKHRVROFYTEK-UHFFFAOYSA-N
- Formula
- C18H26O4
- SMILES
- CCCCCOC(=O)c1ccccc1C(=O)OCCCCC
- Molecular Weight1
- 306.40
- CAS
- 131-18-0
- Other Names
-
- 1,2-Benzenedicarboxylic acid, 1,2-dipentyl ester
- 1,2-Benzenedicarboxylic acid, dipentyl ester
- 1,2-benzenedicarboxylic acid dipentyl ester
- 1,2-benzenedioic acid, dipentyl ester
- Amoil
- Amyl phthalate
- Di-n-pentyl phthalate
- Dipentyl phthalate
- NSC 4720
- Phthalic acid, dipentyl ester
- di-n-Amyl phthalate
- di-n-pentyl o-phthalate
- dipentyl 1,2-butanedioate
- dipentyl benzene-1,2-dicarboxylate
- phthalic acid dipentyl ester
- ΔcH°solid : Standard solid 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).
- ΔfH°solid : Solid phase 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).
- 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).
- 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°solid | -9875.00 ± 13.00 | kJ/mol | NIST |
| ΔfG° | -264.38 | kJ/mol | Joback Calculated Property |
| ΔfH°gas | -679.39 | kJ/mol | Joback Calculated Property |
| ΔfH°solid | -924.00 ± 13.00 | kJ/mol | NIST |
| ΔfusH° | 41.60 | kJ/mol | Joback Calculated Property |
| ΔvapH° | 76.91 | kJ/mol | Joback Calculated Property |
| log10WS | -3.49 | Aq. Sol... | |
| logPoct/wat | 4.381 | Crippen Calculated Property | |
| McVol | 255.600 | ml/mol | McGowan Calculated Property |
| Pc | 1430.00 | kPa | Critica... |
| Inp | [2120.00; 2140.00] |
|
|
| Inp | 2120.00 | NIST | |
| Inp | 2121.00 | NIST | |
| Inp | 2122.00 | NIST | |
| Inp | 2140.00 | NIST | |
| Inp | 2136.00 | NIST | |
| Inp | 2127.00 | NIST | |
| Inp | 2120.00 | NIST | |
| Inp | 2140.00 | NIST | |
| Tboil | 795.48 | K | Joback Calculated Property |
| Tc | 995.15 | K | Joback Calculated Property |
| Tfus | 475.88 | K | Joback Calculated Property |
| Vc | 0.984 | m3/kmol | Joback Calculated Property |
Temperature Dependent Properties
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Cp,gas | [761.25; 839.97] | J/mol×K | [795.48; 995.15] |
|
| Cp,gas | 761.25 | J/mol×K | 795.48 | Joback Calculated Property |
| Cp,gas | 776.92 | J/mol×K | 828.76 | Joback Calculated Property |
| Cp,gas | 791.55 | J/mol×K | 862.04 | Joback Calculated Property |
| Cp,gas | 805.16 | J/mol×K | 895.32 | Joback Calculated Property |
| Cp,gas | 817.75 | J/mol×K | 928.59 | Joback Calculated Property |
| Cp,gas | 829.35 | J/mol×K | 961.87 | Joback Calculated Property |
| Cp,gas | 839.97 | J/mol×K | 995.15 | Joback Calculated Property |
| η | [0.0000720; 0.0007181] | Pa×s | [475.88; 795.48] |
|
| η | 0.0007181 | Pa×s | 475.88 | Joback Calculated Property |
| η | 0.0004036 | Pa×s | 529.15 | Joback Calculated Property |
| η | 0.0002520 | Pa×s | 582.41 | Joback Calculated Property |
| η | 0.0001703 | Pa×s | 635.68 | Joback Calculated Property |
| η | 0.0001223 | Pa×s | 688.95 | Joback Calculated Property |
| η | 0.0000921 | Pa×s | 742.21 | Joback Calculated Property |
| η | 0.0000720 | Pa×s | 795.48 | Joback Calculated Property |
| ΔvapH | [87.30; 99.40] | kJ/mol | [356.50; 401.50] |
|
| ΔvapH | 87.30 | kJ/mol | 356.50 | NIST |
| ΔvapH | 99.20 | kJ/mol | 373.00 | NIST |
| ΔvapH | 99.40 | kJ/mol | 401.50 | NIST |
Similar Compounds
Find more compounds similar to Diamyl phthalate.
Sources
- Crippen Method
- Critical Temperatures and Pressures of 12 Phthalates Using the Pulse-Heating Method
- Joback Method
- Aqueous Solubility Prediction Method
- McGowan Method
- NIST Webbook
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