- InChI
- InChI=1S/C8F18/c9-1(10,3(13,14)5(17,18)7(21,22)23)2(11,12)4(15,16)6(19,20)8(24,25)26
- InChI Key
- YVBBRRALBYAZBM-UHFFFAOYSA-N
- Formula
- C8F18
- SMILES
-
FC(F)(F)C(F)(F)C(F)(F)C(F)(F)C
(F)(F)C(F)(F)C(F)(F)C(F)(F)F - Molecular Weight1
- 438.06
- CAS
- 307-34-6
- Other Names
-
- OCTADECAFLUOROOCTANE
- Octane, octadecafluoro-
- Perfluorooctanes
- n-Perfluorooctane
- 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).
- ΔfusH : Enthalpy of fusion at a given temperature (kJ/mol).
- ΔvapH° : Enthalpy of vaporization at standard conditions (kJ/mol).
- ΔvapH : Enthalpy of vaporization at a given temperature (kJ/mol).
- ν : Kinematic viscosity (m2/s).
- 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).
- n0 : Refractive Index.
- ρl : Liquid Density (kg/m3).
- Inp : Non-polar retention indices.
- csound,fluid : Speed of sound in fluid (m/s).
- γ : Surface Tension (N/m).
- 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 |
|---|---|---|---|
| ΔfG° | -3467.38 | kJ/mol | Joback Calculated Property |
| ΔfH°gas | -3808.43 | kJ/mol | Joback Calculated Property |
| ΔfusH° | 12.60 | kJ/mol | Joback Calculated Property |
| ΔvapH° | [39.90; 41.20] | kJ/mol |
|
| ΔvapH° | 41.16 | kJ/mol | NIST |
| ΔvapH° | 39.90 | kJ/mol | NIST |
| ΔvapH° | 41.20 ± 0.80 | kJ/mol | NIST |
| ΔvapH° | 41.10 ± 0.10 | kJ/mol | NIST |
| log10WS | -6.38 | Crippen Calculated Property | |
| logPoct/wat | 5.923 | Crippen Calculated Property | |
| McVol | 155.440 | ml/mol | McGowan Calculated Property |
| Pc | 1660.00 | kPa | KDB |
| Inp | [341.00; 341.00] |
|
|
| Inp | 341.00 | NIST | |
| Inp | 341.00 | NIST | |
| Tboil | [372.50; 379.00] | K |
|
| Tboil | 379.00 | K | KDB |
| Tboil | 377.20 | K | NIST |
| Tboil | 372.50 ± 0.50 | K | NIST |
| Tboil | 379.00 | K | NIST |
| Tc | [502.00; 502.30] | K |
|
| Tc | 502.00 | K | KDB |
| Tc | 502.30 ± 0.50 | K | NIST |
| Tfus | 254.20 ± 0.50 | K | NIST |
| Vc | 0.720 | m3/kmol | Joback Calculated Property |
Temperature Dependent Properties
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Cp,gas | [375.72; 449.13] | J/mol×K | [343.46; 449.37] |
|
|
T(K) Ideal gas heat capacity (J/mol×K) 380 400 420 440 350 400 450 | ||||
| Cp,gas | 375.72 | J/mol×K | 343.46 | Joback Calculated Property |
| Cp,gas | 389.83 | J/mol×K | 361.11 | Joback Calculated Property |
| Cp,gas | 403.16 | J/mol×K | 378.76 | Joback Calculated Property |
| Cp,gas | 415.73 | J/mol×K | 396.41 | Joback Calculated Property |
| Cp,gas | 427.56 | J/mol×K | 414.06 | Joback Calculated Property |
| Cp,gas | 438.69 | J/mol×K | 431.72 | Joback Calculated Property |
| Cp,gas | 449.13 | J/mol×K | 449.37 | Joback Calculated Property |
| ΔfusH | 9.58 | kJ/mol | 254.20 | NIST |
| ΔvapH | [32.00; 39.50] | kJ/mol | [344.50; 470.00] |
|
| ΔvapH | 39.50 | kJ/mol | 344.50 | NIST |
| ΔvapH | 33.38 | kJ/mol | 379.00 | NIST |
| ΔvapH | 32.00 | kJ/mol | 470.00 | NIST |
| ν | [0.0000005; 0.0000007] | m2/s | [298.15; 318.15] |
|
|
T(K) Kinematic viscosity (m2/s) 5.50e-7 6.00e-7 6.50e-7 7.00e-7 300 305 310 315 | ||||
| ν | 0.0000007 | m2/s | 298.15 | Viscosi... |
| ν | 0.0000007 | m2/s | 303.15 | Viscosi... |
| ν | 0.0000006 | m2/s | 308.15 | Viscosi... |
| ν | 0.0000006 | m2/s | 313.15 | Viscosi... |
| ν | 0.0000005 | m2/s | 318.15 | Viscosi... |
| Pvap | [6.10; 42.35] | kPa | [308.45; 352.86] |
|
|
T(K) Vapor pressure (kPa) 10 20 30 40 320 340 | ||||
| Pvap | 6.10 | kPa | 308.45 | Isother... |
| Pvap | 7.77 | kPa | 312.78 | High-pr... |
| Pvap | 10.10 | kPa | 318.42 | Isother... |
| Pvap | 12.42 | kPa | 322.79 | High-pr... |
| Pvap | 12.80 | kPa | 323.48 | Isother... |
| Pvap | 16.00 | kPa | 328.48 | Isother... |
| Pvap | 19.23 | kPa | 332.87 | High-pr... |
| Pvap | 24.30 | kPa | 338.43 | Isother... |
| Pvap | 29.02 | kPa | 342.87 | High-pr... |
| Pvap | 42.35 | kPa | 352.86 | High-pr... |
| n0 | 1.26800 | 293.00 | Binary ... | |
| ρl | [1709.52; 1770.70] | kg/m3 | [289.03; 312.58] |
|
|
T(K) Liquid Density (kg/m3) 1710 1720 1730 1740 1750 1760 1770 290 300 310 | ||||
| ρl | 1770.70 | kg/m3 | 289.03 | Low pre... |
| ρl | 1760.93 | kg/m3 | 292.84 | Low pre... |
| ρl | 1750.06 | kg/m3 | 297.27 | Low pre... |
| ρl | 1754.28 | kg/m3 | 298.15 | Liquid-... |
| ρl | 1755.00 | kg/m3 | 298.15 | VLE mea... |
| ρl | 1755.00 | kg/m3 | 298.15 | Phase E... |
| ρl | 1734.49 | kg/m3 | 303.15 | Low pre... |
| ρl | 1722.71 | kg/m3 | 307.51 | Low pre... |
| ρl | 1709.52 | kg/m3 | 312.58 | Low pre... |
| csound,fluid | [479.24; 640.32] | m/s | [278.15; 338.15] |
|
|
T(K) Speed of sound in fluid (m/s) 500 550 600 650 280 300 320 | ||||
| csound,fluid | 640.32 | m/s | 278.15 | Propert... |
| csound,fluid | 610.05 | m/s | 288.15 | Propert... |
| csound,fluid | 581.94 | m/s | 298.15 | Propert... |
| csound,fluid | 552.33 | m/s | 308.15 | Propert... |
| csound,fluid | 524.10 | m/s | 318.15 | Propert... |
| csound,fluid | 508.43 | m/s | 328.15 | Propert... |
| csound,fluid | 479.24 | m/s | 338.15 | Propert... |
| γ | [0.01; 0.02] | N/m | [288.05; 323.85] |
|
|
T(K) Surface Tension (N/m) 0.01 0.01 0.01 0.01 0.01 0.01 0.02 0.02 290 300 310 320 | ||||
| γ | 0.02 | N/m | 288.05 | Surface... |
| γ | 0.01 | N/m | 293.15 | Surface... |
| γ | 0.01 | N/m | 298.35 | Surface... |
| γ | 0.01 | N/m | 303.45 | Surface... |
| γ | 0.01 | N/m | 308.45 | Surface... |
| γ | 0.01 | N/m | 318.75 | Surface... |
| γ | 0.01 | N/m | 323.85 | Surface... |
Correlations
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Pvap | [6.06; 1504.18] | kPa | [308.15; 495.15] |
KDB Vap...
|
| Equation | ln(Pvp) = A + B/T + C*ln(T) + D*T^2 | |||
| Coefficient A | 7.37506e+01 | |||
| Coefficient B | -7.19362e+03 | |||
| Coefficient C | -8.56563e+00 | |||
| Coefficient D | 5.06612e-06 | |||
| Temperature range, min. | 308.15 | |||
| Temperature range, max. | 495.15 | |||
|
T(K) Vapor pressure (kPa) 0 200 400 600 800 1000 1200 1400 1600 350 400 450 | ||||
| Pvap | 6.06 | kPa | 308.15 | Calculated Property |
| Pvap | 16.18 | kPa | 328.93 | Calculated Property |
| Pvap | 37.71 | kPa | 349.71 | Calculated Property |
| Pvap | 78.66 | kPa | 370.48 | Calculated Property |
| Pvap | 149.75 | kPa | 391.26 | Calculated Property |
| Pvap | 264.40 | kPa | 412.04 | Calculated Property |
| Pvap | 438.40 | kPa | 432.82 | Calculated Property |
| Pvap | 689.61 | kPa | 453.59 | Calculated Property |
| Pvap | 1037.74 | kPa | 474.37 | Calculated Property |
| Pvap | 1504.18 | kPa | 495.15 | Calculated Property |
Similar Compounds
Find more compounds similar to Perfluorooctane.
Mixtures
- 1H,1H,7H-Dodecafluoro-1-heptanol + Perfluorooctane
- Octane + Perfluorooctane
- Ethane + Perfluorooctane
- Perfluorooctane + Ethylene
- Tetrafluoromethane + Perfluorooctane
- Carbon dioxide + Perfluorooctane
- Carbon monoxide + Perfluorooctane
- n-Hexane + Perfluorooctane
- Ethane, hexafluoro- + Perfluorooctane
- Nitrogen + Perfluorooctane
- Perfluorooctane + Oxygen
- Methane + Perfluorooctane
- Perfluorooctane + Heptane
- Perfluorooctane + Nonane
- Perfluorooctane + Pentane, 2,2,4-trimethyl-
- Decane + Perfluorooctane
- Perfluorooctane + Cyclohexane
- Perfluorooctane + Carbon Tetrachloride
- Trichloromethane + Perfluorooctane
- Methylene chloride + Perfluorooctane
Find more mixtures with Perfluorooctane.
Sources
- KDB Vapor Pressure Data
- Crippen Method
- Crippen Method
- Liquid liquid equilibrium of (perfluoroalkane + alkane) binary mixtures
- Liquid liquid equilibrium of (1H,1H,7H-perfluoroheptan-1-ol + perfluoroalkane) binary mixtures
- Properties of saturated fluorocarbons: Experimental data and modeling using perturbed-chain-SAFT
- Liquid-liquid equilibrium data for binary perfluoroalkane (C6 and C8) + n-alkane systems
- Perfluoroalkanes and perfluoroalkylalkane surfactants in solution: Partial molar volumes in n-octane and hetero-SAFT-VR modelling
- Isothermal vapor-liquid equilibrium of R170 + n-perfluorooctane at 308 - 338 K: Measurement, equation of state modelling, and molecular simulation
- High-pressure phase equilibria data for mixtures involving ethene and perfluoro-n-octane from 293 to 353 K
- VLE measurements and modelling for the binary systems of (CF4 + C6F14) and (CF4 + C8F18)
- Low pressure solubility and thermodynamics of solvation of oxygen, carbon dioxide, and carbon monoxide in fluorinated liquids
- Thermodynamic study of (perfluoroalkane + alkane) mixtures: Excess and solvation enthalpies
- (Liquid + liquid) equilibria of perfluorocarbons with fluorinated ionic liquids
- Phase Equilibria for Perfluoroethane + (n-Perfluorohexane or n-Perfluorooctane) Binary Systems: Measurement and Modeling
- Binary Vapor-Liquid Equilibrium Data for Perfluorooctane with Light Gases (Oxygen, Nitrogen, and Methane)
- Phase Separation in Binary Mixtures Containing Linear Perfluoroalkanes
- Surface Tension of Liquid Fluorocompounds
- Viscosities of Liquid Fluorocompounds
- Joback Method
- KDB
- McGowan Method
- NIST Webbook
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