- InChI
- InChI=1S/C4H8F2/c1-3-4(2,5)6/h3H2,1-2H3
- InChI Key
- IIADOUMJKYSCPM-UHFFFAOYSA-N
- Formula
- C4H8F2
- SMILES
- CCC(C)(F)F
- Molecular Weight1
- 94.10
- CAS
- 353-81-1
- Other Names
-
- 2,2-Difluorobutane
- butane, 2,2-difluoro-
- ω : Acentric Factor.
- Cp,gas : Ideal gas heat capacity (J/mol×K).
- 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).
- 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).
- Inp : Non-polar retention indices.
- Tboil : Normal Boiling Point Temperature (K).
- Tc : Critical Temperature (K).
- Tfus : Normal melting (fusion) point (K).
- Ttriple : Triple Point Temperature (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 | 0.2566 | Relay (1.0) Calculated Property | |
| ΔfG° | -403.98 | kJ/mol | Joback Calculated Property |
| ΔfH°gas | -552.24 | kJ/mol | Relay (1.0) Calculated Property |
| ΔfusH° | 4.86 | kJ/mol | Joback Calculated Property |
| ΔvapH° | 25.28 | kJ/mol | Relay (1.0) Calculated Property |
| IE | 11.23 | eV | Relay (1.0) Calculated Property |
| log10WS | -1.62 | Relay (1.0) Calculated Property | |
| logPoct/wat | 2.052 | Crippen Calculated Property | |
| McVol | 70.760 | ml/mol | McGowan Calculated Property |
| Pc | 3572.80 | kPa | Joback Calculated Property |
| Inp | [434.00; 434.00] |
|
|
| Inp | 434.00 | NIST | |
| Inp | 434.00 | NIST | |
| Tboil | 304.00 ± 1.00 | K | NIST |
| Tc | 459.25 | K | Relay (1.0) Calculated Property |
| Tfus | 154.78 | K | Relay (1.0) Calculated Property |
| Ttriple | 155.63 | K | Staveley, Lobo and Calado (1981), triple points Compiled value |
| Vc | 0.279 | m3/kmol | Relay (1.0) Calculated Property |
Temperature Dependent Properties
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| ΔvapH | 30.00 | kJ/mol | 287.00 | NIST |
Correlations
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Cp,gas | [105.27; 241.30] | 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 | -1.30390e+01 | |||
| Coefficient B | 5.33240e-01 | |||
| Coefficient C | -3.98400e-04 | |||
| Coefficient D | 1.19500e-07 | |||
| Coefficient E | 0.00000e+00 | |||
| Temperature range, min. | 273.00 | |||
| Temperature range, max. | 1000.00 | |||
| Cp,gas | 105.27 | J/mol×K | 273.00 | Calculated Property |
| Cp,gas | 131.04 | J/mol×K | 353.78 | Calculated Property |
| Cp,gas | 153.26 | J/mol×K | 434.56 | Calculated Property |
| Cp,gas | 172.31 | J/mol×K | 515.33 | Calculated Property |
| Cp,gas | 188.57 | J/mol×K | 596.11 | Calculated Property |
| Cp,gas | 202.43 | J/mol×K | 676.89 | Calculated Property |
| Cp,gas | 214.25 | J/mol×K | 757.67 | Calculated Property |
| Cp,gas | 224.42 | J/mol×K | 838.44 | Calculated Property |
| Cp,gas | 233.31 | J/mol×K | 919.22 | Calculated Property |
| Cp,gas | 241.30 | J/mol×K | 1000.00 | Calculated Property |
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Pvap | [1.33; 202.67] | kPa | [226.40; 324.24] |
The Yaws Handbook of Vapor Pressure
|
| Equation | ln(Y) = A + B/(T + C) Y is Pvap in kPa, T in K | |||
| Coefficient A | 1.32951e+01 | |||
| Coefficient B | -2.02243e+03 | |||
| Coefficient C | -7.09140e+01 | |||
| Temperature range, min. | 226.40 | |||
| Temperature range, max. | 324.24 | |||
| Pvap | 1.33 | kPa | 226.40 | Calculated Property |
| Pvap | 3.12 | kPa | 237.27 | Calculated Property |
| Pvap | 6.58 | kPa | 248.14 | Calculated Property |
| Pvap | 12.72 | kPa | 259.01 | Calculated Property |
| Pvap | 22.89 | kPa | 269.88 | Calculated Property |
| Pvap | 38.75 | kPa | 280.76 | Calculated Property |
| Pvap | 62.30 | kPa | 291.63 | Calculated Property |
| Pvap | 95.78 | kPa | 302.50 | Calculated Property |
| Pvap | 141.69 | kPa | 313.37 | Calculated Property |
| Pvap | 202.67 | kPa | 324.24 | Calculated Property |
Similar Compounds
Find more compounds similar to Butane, 2,2-difluoro.
Sources
- Staveley, Lobo and Calado (1981), triple points ChEDL chemicals 1.5.2, from Staveley, L. A. K.; Lobo, L. Q.; Calado, J. C. G. Triple-Points of Low Melting Substances and Their Use in Cryogenic Work. Cryogenics 1981, 21, 131-144.
- Cheméo Relay (1.0)
- Crippen Method
- Crippen Method
- Joback Method
- McGowan Method
- NIST Webbook
- The Yaws Handbook of Vapor Pressure
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