- InChI
- InChI=1S/C2HF5O/c3-1(4)8-2(5,6)7/h1H
- InChI Key
- ACYQYBAHTSKBLM-UHFFFAOYSA-N
- Formula
- C2HF5O
- SMILES
- FC(F)OC(F)(F)F
- Molecular Weight1
- 136.02
- CAS
- 3822-68-2
- Other Names
-
- (difluoromethoxy)trifluoromethane
- difluoromethyl trifluoromethyl ether
- ether, difluoromethyl trifluoromethyl
- methane, (difluoromethoxy)trifluoro-
- Cp,gas : Ideal gas heat capacity (J/mol×K).
- 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).
- logPoct/wat : Octanol/Water partition coefficient.
- McVol : McGowan's characteristic volume (ml/mol).
- Pc : Critical Pressure (kPa).
- Tboil : Normal Boiling Point Temperature (K).
- Tc : Critical Temperature (K).
- Tfus : Normal melting (fusion) point (K).
- 1: Molecular weight from the IUPAC atomic weights tables.
Physical Properties
| Property | Value | Unit | Source |
|---|---|---|---|
| ΔfusH° | 6.59 | kJ/mol | Joback Calculated Property |
| ΔvapH° | 21.42 | kJ/mol | Relay (1.0) Calculated Property |
| IE | 12.75 | eV | Relay (1.0) Calculated Property |
| logPoct/wat | 1.745 | Crippen Calculated Property | |
| McVol | 53.760 | ml/mol | McGowan Calculated Property |
| Pc | 3326.00 ± 12.00 | kPa | NIST |
| Tboil | 238.60 ± 0.50 | K | NIST |
| Tc | 353.85 ± 0.30 | K | NIST |
| Tfus | 116.00 ± 2.00 | K | NIST |
Cheméo can also estimate Critical Volume, Enthalpy of formation at standard conditions, Standard Gibbs free energy of formation, Acentric Factor, Log10 of Water solubility in mol/l for this compound, but they fall outside the models' validated range, so they are not shown here. Open the prediction tool to compute them on demand.
Temperature Dependent Properties
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| ΔvapH | [15.60; 22.30] | kJ/mol | [227.00; 280.00] | 
|
| ΔvapH | 22.30 | kJ/mol | 227.00 | NIST |
| ΔvapH | 20.40 | kJ/mol | 276.50 | NIST |
| ΔvapH | 19.30 | kJ/mol | 280.00 | NIST |
| ΔvapH | 17.60 | kJ/mol | 280.00 | NIST |
| ΔvapH | 15.60 | kJ/mol | 280.00 | NIST |
Correlations
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Cp,gas | [102.53; 178.37] | 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 | 3.08700e+01 | |||
| Coefficient B | 3.21300e-01 | |||
| Coefficient C | -2.31000e-04 | |||
| Coefficient D | 5.72000e-08 | |||
| Coefficient E | 0.00000e+00 | |||
| Temperature range, min. | 273.00 | |||
| Temperature range, max. | 1000.00 | |||
| Cp,gas | 102.53 | J/mol×K | 273.00 | Calculated Property |
| Cp,gas | 118.16 | J/mol×K | 353.78 | Calculated Property |
| Cp,gas | 131.56 | J/mol×K | 434.56 | Calculated Property |
| Cp,gas | 142.93 | J/mol×K | 515.33 | Calculated Property |
| Cp,gas | 152.43 | J/mol×K | 596.11 | Calculated Property |
| Cp,gas | 160.25 | J/mol×K | 676.89 | Calculated Property |
| Cp,gas | 166.58 | J/mol×K | 757.67 | Calculated Property |
| Cp,gas | 171.59 | J/mol×K | 838.44 | Calculated Property |
| Cp,gas | 175.46 | J/mol×K | 919.22 | Calculated Property |
| Cp,gas | 178.37 | J/mol×K | 1000.00 | Calculated Property |
Similar Compounds
Find more compounds similar to Pentafluorodimethyl ether.
Sources
- Cheméo Relay (1.0)
- Crippen Method
- Crippen Method
- Binary Vapor Liquid and Vapor Liquid Liquid Equilibria of Hydrofluorocarbons (HFC-125 and HFC-143a) and Hydrofluoroethers (HFE-125 and HFE-143a) with Ionic Liquid [emim][Tf2N]
- Joback Method
- McGowan Method
- NIST Webbook
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