- InChI
- InChI=1S/F2O/c1-3-2
- InChI Key
- UJMWVICAENGCRF-UHFFFAOYSA-N
- Formula
- F2O
- SMILES
- FOF
- Molecular Weight1
- 54.00
- CAS
- 7783-41-7
- Other Names
-
- Difluorine monooxide
- Difluorine monoxide
- Fluorine monoxide
- Fluorine oxide
- OF2
- Oxydifluoride
- Oxygen fluoride
- Oxygen fluoride (OF2)
- UN 2190
- Cp,gas : Ideal gas heat capacity (J/mol×K).
- μ : Dipole Moment (debye).
- 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).
- 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).
- ρl : Liquid Density (kg/m3).
- 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.
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Physical Properties
| Property | Value | Unit | Source |
|---|---|---|---|
| μ | 0.20 | debye | KDB |
| ΔfG° | 41.78 | kJ/mol | KDB |
| ΔfH°gas | [24.53; 24.67] | kJ/mol |
|
| ΔfH°gas | 24.67 ± 0.25 | kJ/mol | Active Thermochemical Tables 1.112, gas-phase enthalpies of formation Compiled value |
| ΔfH°gas | 24.53 | kJ/mol | KDB |
| ΔfusH° | 3.10 | kJ/mol | Joback Calculated Property |
| IE | [13.11; 13.26] | eV |
|
| IE | 13.11 ± 0.01 | eV | NIST |
| IE | 13.11 ± 0.01 | eV | NIST |
| IE | 13.11 | eV | NIST |
| IE | 13.13 | eV | NIST |
| IE | 13.26 | eV | NIST |
| logPoct/wat | 0.772 | Crippen Calculated Property | |
| McVol | 20.270 | ml/mol | McGowan Calculated Property |
| Pc | 4960.00 | kPa | KDB |
| Tboil | [127.90; 128.40] | K |
|
| Tboil | 128.40 | K | KDB |
| Tboil | 127.90 ± 0.30 | K | NIST |
| Tc | [215.00; 215.20] | K |
|
| Tc | 215.20 | K | Mathews (1972), critical constants of inorganic substances Compiled value |
| Tc | 215.00 | K | KDB |
| Tfus | [49.30; 49.40] | K |
|
| Tfus | 49.30 | K | KDB |
| Tfus | 49.40 ± 0.25 | K | NIST |
Cheméo can also estimate Critical Volume, Enthalpy of vaporization at standard conditions, 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 |
|---|---|---|---|---|
| ρl | 1521.00 | kg/m3 | 128.00 | KDB |
Correlations
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Cp,gas | [43.29; 52.40] | J/mol×K | [298.00; 600.00] |
NIST
|
| Equation | Y = A + B·t + C·t² + D·t³ + E/t², t = T/1000 Y is Cp,gas in J/mol×K, T in K | |||
| Coefficient A | 1.50698e+01 | |||
| Coefficient B | 1.36261e+02 | |||
| Coefficient C | -1.72809e+02 | |||
| Coefficient D | 8.14077e+01 | |||
| Coefficient E | 7.18930e-02 | |||
| Reference | Chase, 1998 | |||
| Comment | F=15.57553, G=232.4333, H=24.51803; Data last reviewed in September, 1995 | |||
| Temperature range, min. | 298.00 | |||
| Temperature range, max. | 600.00 | |||
| Cp,gas | 43.29 | J/mol×K | 298.00 | Calculated Property |
| Cp,gas | 44.87 | J/mol×K | 331.56 | Calculated Property |
| Cp,gas | 46.29 | J/mol×K | 365.11 | Calculated Property |
| Cp,gas | 47.54 | J/mol×K | 398.67 | Calculated Property |
| Cp,gas | 48.64 | J/mol×K | 432.22 | Calculated Property |
| Cp,gas | 49.60 | J/mol×K | 465.78 | Calculated Property |
| Cp,gas | 50.45 | J/mol×K | 499.33 | Calculated Property |
| Cp,gas | 51.18 | J/mol×K | 532.89 | Calculated Property |
| Cp,gas | 51.83 | J/mol×K | 566.44 | Calculated Property |
| Cp,gas | 52.40 | J/mol×K | 600.00 | Calculated Property |
| Cp,gas | [52.33; 58.16] | J/mol×K | [600.00; 6000.00] |
NIST
|
| Equation | Y = A + B·t + C·t² + D·t³ + E/t², t = T/1000 Y is Cp,gas in J/mol×K, T in K | |||
| Coefficient A | 5.72681e+01 | |||
| Coefficient B | 6.40466e-01 | |||
| Coefficient C | -1.50702e-01 | |||
| Coefficient D | 1.16770e-02 | |||
| Coefficient E | -1.89863e+00 | |||
| Reference | Chase, 1998 | |||
| Comment | F=1.585041, G=307.3976, H=24.51803; Data last reviewed in September, 1995 | |||
| Temperature range, min. | 600.00 | |||
| Temperature range, max. | 6000.00 | |||
| Cp,gas | 52.33 | J/mol×K | 600.00 | Calculated Property |
| Cp,gas | 56.52 | J/mol×K | 1200.00 | Calculated Property |
| Cp,gas | 57.41 | J/mol×K | 1800.00 | Calculated Property |
| Cp,gas | 57.77 | J/mol×K | 2400.00 | Calculated Property |
| Cp,gas | 57.94 | J/mol×K | 3000.00 | Calculated Property |
| Cp,gas | 58.02 | J/mol×K | 3600.00 | Calculated Property |
| Cp,gas | 58.06 | J/mol×K | 4200.00 | Calculated Property |
| Cp,gas | 58.08 | J/mol×K | 4800.00 | Calculated Property |
| Cp,gas | 58.11 | J/mol×K | 5400.00 | Calculated Property |
| Cp,gas | 58.16 | J/mol×K | 6000.00 | Calculated Property |
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Pvap | [0.10; 4953.50] | kPa | [75.00; 210.00] |
The Yaws Handbook of Vapor Pressure
|
| Equation | ln(Y) = A + B/(T + C) Y is Pvap in kPa, T in K | |||
| Coefficient A | 1.47781e+01 | |||
| Coefficient B | -1.33745e+03 | |||
| Coefficient C | 3.30000e+00 | |||
| Temperature range, min. | 75.00 | |||
| Temperature range, max. | 210.00 | |||
| Pvap | 0.10 | kPa | 75.00 | Calculated Property |
| Pvap | 1.56 | kPa | 90.00 | Calculated Property |
| Pvap | 11.34 | kPa | 105.00 | Calculated Property |
| Pvap | 50.96 | kPa | 120.00 | Calculated Property |
| Pvap | 165.25 | kPa | 135.00 | Calculated Property |
| Pvap | 425.70 | kPa | 150.00 | Calculated Property |
| Pvap | 926.40 | kPa | 165.00 | Calculated Property |
| Pvap | 1775.11 | kPa | 180.00 | Calculated Property |
| Pvap | 3082.66 | kPa | 195.00 | Calculated Property |
| Pvap | 4953.50 | kPa | 210.00 | Calculated Property |
| Pvap | [0.12; 101.82] | kPa | [77.00; 128.50] |
NIST
|
| Equation | ln(Y) = A + B/(T + C) Y is Pvap in kPa, T in K | |||
| Coefficient A | 1.67298e+01 | |||
| Coefficient B | -1.74628e+03 | |||
| Coefficient C | 1.57420e+01 | |||
| Reference | Stull, 1947 | |||
| Comment | Coefficents calculated by NIST from author's data. | |||
| Temperature range, min. | 77.00 | |||
| Temperature range, max. | 128.50 | |||
| Pvap | 0.12 | kPa | 77.00 | Calculated Property |
| Pvap | 0.37 | kPa | 82.72 | Calculated Property |
| Pvap | 0.97 | kPa | 88.44 | Calculated Property |
| Pvap | 2.32 | kPa | 94.17 | Calculated Property |
| Pvap | 5.09 | kPa | 99.89 | Calculated Property |
| Pvap | 10.38 | kPa | 105.61 | Calculated Property |
| Pvap | 19.84 | kPa | 111.33 | Calculated Property |
| Pvap | 35.87 | kPa | 117.06 | Calculated Property |
| Pvap | 61.75 | kPa | 122.78 | Calculated Property |
| Pvap | 101.82 | kPa | 128.50 | Calculated Property |
Similar Compounds
Find more compounds similar to Oxygen difluoride.
Sources
- Active Thermochemical Tables 1.112, gas-phase enthalpies of formation ChEDL chemicals 1.5.2, from Active Thermochemical Tables (ATcT), version 1.112, Argonne National Laboratory; Ruscic, B. et al. Active Thermochemical Tables: Thermochemistry for the 21st Century. J. Phys.: Conf. Ser. 2005, 16, 561.
- Mathews (1972), critical constants of inorganic substances ChEDL chemicals 1.5.2, from Mathews, J. F. Critical Constants of Inorganic Substances. Chem. Rev. 1972, 72, 71-100.
- Crippen Method
- Crippen Method
- Joback Method
- KDB
- McGowan Method
- NIST Webbook
- The Yaws Handbook of Vapor Pressure
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