- InChI
- InChI=1S/C5H8O/c1-2-4-6-5-3-1/h2,4H,1,3,5H2
- InChI Key
- BUDQDWGNQVEFAC-UHFFFAOYSA-N
- Formula
- C5H8O
- SMILES
- C1=COCCC1
- Molecular Weight1
- 84.12
- CAS
- 110-87-2
- Other Names
-
- 1,2-Pyran, 3,4-dihydro-
- 2,3-Dihydro-4H-pyran
- 2,3-Dihydropyran
- 2H-3,4-Dihydropyran
- 3,4-Dihdro-2H-pyrane
- 3,4-Dihydro-2-pyran
- 3,4-Dihydro-2H-pyran
- 3,4-Dihydropyran
- 5,6-Dihydro-4H-pyran
- Dihydropyran
- NSC 57860
- Pyran, dihydro-
- «delta»2-Dihydropyran
- «delta»2-Dihydropyran
- PAff : Proton affinity (kJ/mol).
- BasG : Gas basicity (kJ/mol).
- 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).
- ΔfH°liquid : Liquid 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).
- 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.
- I : 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 |
|---|---|---|---|
| PAff | 865.80 | kJ/mol | NIST |
| BasG | 833.40 | kJ/mol | NIST |
| ΔcH°liquid | -2963.14 ± 0.80 | kJ/mol | NIST |
| ΔfG° | -32.78 | kJ/mol | Joback Calculated Property |
| ΔfH°gas | -112.81 ± 0.90 | kJ/mol | NIST |
| ΔfH°liquid | -147.73 ± 0.86 | kJ/mol | NIST |
| ΔfusH° | 8.67 | kJ/mol | Joback Calculated Property |
| ΔvapH° | [34.90; 34.92] | kJ/mol |
|
| ΔvapH° | 34.92 ± 0.04 | kJ/mol | NIST |
| ΔvapH° | 34.90 | kJ/mol | NIST |
| IE | [8.34; 8.60] | eV |
|
| IE | 8.35 ± 0.01 | eV | NIST |
| IE | 8.37 ± 0.02 | eV | NIST |
| IE | 8.35 | eV | NIST |
| IE | 8.34 ± 0.01 | eV | NIST |
| IE | 8.60 | eV | NIST |
| log10WS | -1.25 | Crippen Calculated Property | |
| logPoct/wat | 1.310 | Crippen Calculated Property | |
| McVol | 72.020 | ml/mol | McGowan Calculated Property |
| Pc | 4560.00 ± 50.66 | kPa | NIST |
| Inp | [663.00; 748.00] |
|
|
| Inp | 697.00 | NIST | |
| Inp | 708.00 | NIST | |
| Inp | 720.00 | NIST | |
| Inp | 748.00 | NIST | |
| Inp | 664.00 | NIST | |
| Inp | 663.00 | NIST | |
| Inp | 671.00 | NIST | |
| Inp | 668.00 | NIST | |
| Inp | 705.00 | NIST | |
| I | [982.00; 982.00] |
|
|
| I | 982.00 | NIST | |
| I | 982.00 | NIST | |
| Tboil | [358.85; 359.70] | K |
|
| Tboil | 359.70 | K | NIST |
| Tboil | 359.00 ± 4.00 | K | NIST |
| Tboil | 359.00 ± 2.00 | K | NIST |
| Tboil | 358.85 ± 0.30 | K | NIST |
| Tc | 561.70 ± 0.83 | K | NIST |
| Tfus | 185.06 | K | Joback Calculated Property |
| Vc | 0.257 | m3/kmol | Joback Calculated Property |
Temperature Dependent Properties
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Cp,gas | [115.35; 175.50] | J/mol×K | [364.13; 573.37] |
|
| Cp,gas | 115.35 | J/mol×K | 364.13 | Joback Calculated Property |
| Cp,gas | 126.89 | J/mol×K | 399.00 | Joback Calculated Property |
| Cp,gas | 137.79 | J/mol×K | 433.88 | Joback Calculated Property |
| Cp,gas | 148.08 | J/mol×K | 468.75 | Joback Calculated Property |
| Cp,gas | 157.79 | J/mol×K | 503.62 | Joback Calculated Property |
| Cp,gas | 166.92 | J/mol×K | 538.49 | Joback Calculated Property |
| Cp,gas | 175.50 | J/mol×K | 573.37 | Joback Calculated Property |
| η | [0.0003376; 0.0102466] | Pa×s | [185.06; 364.13] |
|
| η | 0.0102466 | Pa×s | 185.06 | Joback Calculated Property |
| η | 0.0039085 | Pa×s | 214.91 | Joback Calculated Property |
| η | 0.0018859 | Pa×s | 244.75 | Joback Calculated Property |
| η | 0.0010662 | Pa×s | 274.60 | Joback Calculated Property |
| η | 0.0006741 | Pa×s | 304.44 | Joback Calculated Property |
| η | 0.0004625 | Pa×s | 334.28 | Joback Calculated Property |
| η | 0.0003376 | Pa×s | 364.13 | Joback Calculated Property |
Correlations
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Pvap | [1.00; 202.63] | kPa | [251.15; 384.27] |
The Yaw...
|
| Equation | ln(Pvp) = A + B/(T + C) | |||
| Coefficient A | 1.49683e+01 | |||
| Coefficient B | -3.62279e+03 | |||
| Coefficient C | -9.12000e+00 | |||
| Temperature range, min. | 251.15 | |||
| Temperature range, max. | 384.27 | |||
| Pvap | 1.00 | kPa | 251.15 | Calculated Property |
| Pvap | 2.37 | kPa | 265.94 | Calculated Property |
| Pvap | 5.10 | kPa | 280.73 | Calculated Property |
| Pvap | 10.17 | kPa | 295.52 | Calculated Property |
| Pvap | 18.92 | kPa | 310.31 | Calculated Property |
| Pvap | 33.22 | kPa | 325.11 | Calculated Property |
| Pvap | 55.47 | kPa | 339.90 | Calculated Property |
| Pvap | 88.65 | kPa | 354.69 | Calculated Property |
| Pvap | 136.32 | kPa | 369.48 | Calculated Property |
| Pvap | 202.63 | kPa | 384.27 | Calculated Property |
Similar Compounds
Find more compounds similar to 2H-Pyran, 3,4-dihydro-.
Sources
- Crippen Method
- Crippen Method
- Joback Method
- McGowan Method
- NIST Webbook
- The Yaws Handbook of Vapor Pressure
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