- InChI
- InChI=1S/C4H4/c1-3-4-2/h1,4H,2H2
- InChI Key
- WFYPICNXBKQZGB-UHFFFAOYSA-N
- Formula
- C4H4
- SMILES
- C#CC=C
- Molecular Weight1
- 52.07
- CAS
- 689-97-4
- Other Names
-
- 1-BUTEN-3-YEN
- 1-Butene-3-yne
- 1-Butenyne
- 1-Butyn-3-ene
- 3-Buten-1-yne
- But-1-en-3-yne
- Buten-3-yne
- Butenyne
- Ethene, ethynyl-
- Ethynylethene
- Monovinylacetylene
- Vinylacetylene
- Vinylethyne
- ω : Acentric Factor.
- ΔcH°liquid : Standard liquid enthalpy of combustion (kJ/mol).
- Cp,gas : Ideal gas heat capacity (J/mol×K).
- Cp,liquid : Liquid phase heat capacity (J/mol×K).
- μ : Dipole Moment (debye).
- η : Dynamic viscosity (Pa×s).
- 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 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).
- Pvap : Vapor pressure (kPa).
- ρl : Liquid Density (kg/m3).
- Inp : Non-polar retention indices.
- γ : Surface Tension (N/m).
- Tboil : Normal Boiling Point Temperature (K).
- Tc : Critical Temperature (K).
- λgas : Gas thermal conductivity (W/m×K).
- λliquid : Liquid thermal conductivity (W/m×K).
- Tfus : Normal melting (fusion) point (K).
- UQi : UNIQUAC Qi Parameter.
- URi : UNIQUAC Ri Parameter.
- Vc : Critical Volume (m3/kmol).
- Zc : Critical Compressibility.
- Zra : Rackett Parameter.
- 1: Molecular weight from the IUPAC atomic weights tables.
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Physical Properties
| Property | Value | Unit | Source |
|---|---|---|---|
| ω | [0.0920; 0.1069] |
|
|
| ω | 0.0920 | PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value | |
| ω | 0.1069 | ChemSep v8.3 pure component data Compiled value | |
| ω | 0.0920 | KDB | |
| ΔcH°liquid | -2380.00 | kJ/mol | NIST |
| μ | 0.39 | debye | ChemSep v8.3 pure component data Compiled value |
| ΔfG° | [306.00; 306.20] | kJ/mol |
|
| ΔfG° | 306.00 | kJ/mol | ChemSep v8.3 pure component data Compiled value |
| ΔfG° | 306.20 | kJ/mol | KDB |
| ΔfH°gas | [295.00; 304.80] | kJ/mol |
|
| ΔfH°gas | 304.60 | kJ/mol | ChemSep v8.3 pure component data Compiled value |
| ΔfH°gas | 304.80 | kJ/mol | KDB |
| ΔfH°gas | 295.00 | kJ/mol | NIST |
| ΔfusH° | 7.81 | kJ/mol | Joback Calculated Property |
| IE | [9.58; 9.90] | eV |
|
| IE | 9.58 ± 0.02 | eV | NIST |
| IE | 9.58 ± 0.02 | eV | NIST |
| IE | 9.58 ± 0.02 | eV | NIST |
| IE | 9.58 ± 0.02 | eV | NIST |
| IE | 9.63 | eV | NIST |
| IE | 9.90 | eV | NIST |
| IE | 9.90 | eV | NIST |
| IE | 9.87 | eV | NIST |
| IE | 9.90 | eV | NIST |
| IE | 9.90 | eV | NIST |
| IE | 9.64 ± 0.03 | eV | NIST |
| logPoct/wat | 0.806 | Crippen Calculated Property | |
| McVol | 54.320 | ml/mol | McGowan Calculated Property |
| Pc | [4860.00; 4964.93] | kPa |
|
| Pc | 4964.93 | kPa | PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value |
| Pc | 4860.00 | kPa | ChemSep v8.3 pure component data Compiled value |
| Pc | 4960.00 | kPa | KDB |
| Inp | [373.00; 410.00] |
|
|
| Inp | 373.00 | NIST | |
| Inp | 373.00 | NIST | |
| Inp | 374.00 | NIST | |
| Inp | 374.00 | NIST | |
| Inp | 407.15 | NIST | |
| Inp | 404.00 | NIST | |
| Inp | 410.00 | NIST | |
| Inp | 404.00 | NIST | |
| Tboil | [276.15; 278.25] | K |
|
| Tboil | 278.25 | K | ChemSep v8.3 pure component data Compiled value |
| Tboil | 278.10 | K | KDB |
| Tboil | 276.15 ± 3.00 | K | NIST |
| Tc | [454.00; 455.00] | K |
|
| Tc | 455.00 | K | PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value |
| Tc | 454.00 | K | ChemSep v8.3 pure component data Compiled value |
| Tc | 455.00 | K | KDB |
| Tfus | 227.60 | K | KDB |
| UQi | 2.94 | ChemSep v8.3 pure component data Compiled value | |
| URi | 3.53 | ChemSep v8.3 pure component data Compiled value | |
| Vc | [0.202; 0.205] | m3/kmol |
|
| Vc | 0.202 | m3/kmol | PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value |
| Vc | 0.205 | m3/kmol | ChemSep v8.3 pure component data Compiled value |
| Vc | 0.202 | m3/kmol | KDB |
| Zc | [0.2640000; 0.2648410] |
|
|
| Zc | 0.2640000 | ChemSep v8.3 pure component data Compiled value | |
| Zc | 0.2648410 | KDB | |
| Zra | 0.26 | ChemSep v8.3 pure component data Compiled value |
Cheméo can also estimate Enthalpy of vaporization at standard conditions, 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 | [24.48; 26.00] | kJ/mol | [229.00; 278.10] |
|
| ΔvapH | 26.00 | kJ/mol | 229.00 | NIST |
| ΔvapH | 24.48 | kJ/mol | 278.10 | KDB |
| ρl | 710.00 | kg/m3 | 273.00 | KDB |
| γ | 0.02 | N/m | 298.20 | KDB |
Correlations
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Cp,gas | [59.15; 156.20] | J/mol×K | [200.00; 1500.00] |
ChemSep v8.3 pure component data Compiled value
|
| Equation | Y = A + exp(B/T + C + D·T + E·T²) Y is Cp,gas in J/mol×K, T in K | |||
| Coefficient A | 4.99810e+01 | |||
| Coefficient B | -5.81700e+02 | |||
| Coefficient C | 5.14424e+00 | |||
| Coefficient D | -1.08250e-04 | |||
| Coefficient E | 3.17300e-08 | |||
| Temperature range, min. | 200.00 | |||
| Temperature range, max. | 1500.00 | |||
| Cp,gas | 59.15 | J/mol×K | 200.00 | Calculated Property |
| Cp,gas | 80.61 | J/mol×K | 344.44 | Calculated Property |
| Cp,gas | 99.83 | J/mol×K | 488.89 | Calculated Property |
| Cp,gas | 114.69 | J/mol×K | 633.33 | Calculated Property |
| Cp,gas | 126.03 | J/mol×K | 777.78 | Calculated Property |
| Cp,gas | 134.81 | J/mol×K | 922.22 | Calculated Property |
| Cp,gas | 141.77 | J/mol×K | 1066.67 | Calculated Property |
| Cp,gas | 147.43 | J/mol×K | 1211.11 | Calculated Property |
| Cp,gas | 152.16 | J/mol×K | 1355.56 | Calculated Property |
| Cp,gas | 156.20 | J/mol×K | 1500.00 | Calculated Property |
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Cp,liquid | [95.78; 106.54] | J/mol×K | [200.00; 278.25] |
ChemSep v8.3 pure component data Compiled value
|
| Equation | Y = A + exp(B/T + C + D·T + E·T²) Y is Cp,liquid in J/mol×K, T in K | |||
| Coefficient A | 6.83820e+01 | |||
| Coefficient B | -6.35140e+01 | |||
| Coefficient C | 3.00424e+00 | |||
| Coefficient D | 3.14040e-03 | |||
| Coefficient E | -1.03070e-07 | |||
| Temperature range, min. | 200.00 | |||
| Temperature range, max. | 278.25 | |||
| Cp,liquid | 95.78 | J/mol×K | 200.00 | Calculated Property |
| Cp,liquid | 96.91 | J/mol×K | 208.69 | Calculated Property |
| Cp,liquid | 98.04 | J/mol×K | 217.39 | Calculated Property |
| Cp,liquid | 99.20 | J/mol×K | 226.08 | Calculated Property |
| Cp,liquid | 100.37 | J/mol×K | 234.78 | Calculated Property |
| Cp,liquid | 101.56 | J/mol×K | 243.47 | Calculated Property |
| Cp,liquid | 102.77 | J/mol×K | 252.17 | Calculated Property |
| Cp,liquid | 104.00 | J/mol×K | 260.86 | Calculated Property |
| Cp,liquid | 105.26 | J/mol×K | 269.56 | Calculated Property |
| Cp,liquid | 106.54 | J/mol×K | 278.25 | Calculated Property |
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| η | [0.0008764; 0.0001041] | Pa×s | [173.15; 400.00] |
ChemSep v8.3 pure component data Compiled value
|
| Equation | Y = exp(A + B/T + C·ln(T) + D·T^E) Y is η in Pa×s, T in K | |||
| Coefficient A | -2.24530e+00 | |||
| Coefficient B | 3.20680e+02 | |||
| Coefficient C | -1.28950e+00 | |||
| Coefficient D | -5.65120e-09 | |||
| Coefficient E | 2.00000e+00 | |||
| Temperature range, min. | 173.15 | |||
| Temperature range, max. | 400.00 | |||
| η | 0.0008764 | Pa×s | 173.15 | Calculated Property |
| η | 0.0005812 | Pa×s | 198.36 | Calculated Property |
| η | 0.0004151 | Pa×s | 223.56 | Calculated Property |
| η | 0.0003127 | Pa×s | 248.77 | Calculated Property |
| η | 0.0002452 | Pa×s | 273.97 | Calculated Property |
| η | 0.0001984 | Pa×s | 299.18 | Calculated Property |
| η | 0.0001644 | Pa×s | 324.38 | Calculated Property |
| η | 0.0001390 | Pa×s | 349.59 | Calculated Property |
| η | 0.0001195 | Pa×s | 374.79 | Calculated Property |
| η | 0.0001041 | Pa×s | 400.00 | Calculated Property |
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| ΔvapH | [29.78; 7.55] | kJ/mol | [173.15; 439.22] |
ChemSep v8.3 pure component data Compiled value
|
| Equation | Y = A·(1 − Tr)^(B + C·Tr + D·Tr² + E·Tr³), Tr = T/Tc Y is ΔvapH in kJ/mol, T in K | |||
| Coefficient A | 3.31351e+01 | |||
| Coefficient B | -1.05563e-02 | |||
| Coefficient C | 7.18670e-01 | |||
| Coefficient D | -2.91074e-01 | |||
| Coefficient E | 2.15152e-02 | |||
| Critical temperature, Tc (K) | 4.54000e+02 | |||
| Temperature range, min. | 173.15 | |||
| Temperature range, max. | 439.22 | |||
| ΔvapH | 29.78 | kJ/mol | 173.15 | Calculated Property |
| ΔvapH | 28.51 | kJ/mol | 202.71 | Calculated Property |
| ΔvapH | 27.04 | kJ/mol | 232.28 | Calculated Property |
| ΔvapH | 25.36 | kJ/mol | 261.84 | Calculated Property |
| ΔvapH | 23.45 | kJ/mol | 291.40 | Calculated Property |
| ΔvapH | 21.31 | kJ/mol | 320.97 | Calculated Property |
| ΔvapH | 18.87 | kJ/mol | 350.53 | Calculated Property |
| ΔvapH | 16.04 | kJ/mol | 380.09 | Calculated Property |
| ΔvapH | 12.57 | kJ/mol | 409.66 | Calculated Property |
| ΔvapH | 7.55 | kJ/mol | 439.22 | Calculated Property |
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Pvap | [1.33; 223.95] | kPa | [205.72; 297.13] |
The Yaws Handbook of Vapor Pressure
|
| Equation | ln(Y) = A + B/(T + C) Y is Pvap in kPa, T in K | |||
| Coefficient A | 1.35875e+01 | |||
| Coefficient B | -1.93992e+03 | |||
| Coefficient C | -5.98620e+01 | |||
| Temperature range, min. | 205.72 | |||
| Temperature range, max. | 297.13 | |||
| Pvap | 1.33 | kPa | 205.72 | Calculated Property |
| Pvap | 3.17 | kPa | 215.88 | Calculated Property |
| Pvap | 6.78 | kPa | 226.03 | Calculated Property |
| Pvap | 13.27 | kPa | 236.19 | Calculated Property |
| Pvap | 24.17 | kPa | 246.35 | Calculated Property |
| Pvap | 41.36 | kPa | 256.50 | Calculated Property |
| Pvap | 67.14 | kPa | 266.66 | Calculated Property |
| Pvap | 104.16 | kPa | 276.82 | Calculated Property |
| Pvap | 155.36 | kPa | 286.97 | Calculated Property |
| Pvap | 223.95 | kPa | 297.13 | Calculated Property |
| Pvap | [0.07; 4860.00] | kPa | [173.15; 434.05] |
ChemSep v8.3 pure component data Compiled value
|
| Equation | Y = exp(A + B/T + C·ln(T) + D·T^E) Y is Pvap in kPa, T in K | |||
| Coefficient A | 7.21364e+01 | |||
| Coefficient B | -5.00186e+03 | |||
| Coefficient C | -8.98413e+00 | |||
| Coefficient D | 1.29415e-05 | |||
| Coefficient E | 2.00000e+00 | |||
| Comment | Range stopped where the equation exceeds Pc; ChemSep gives it to 454 K. | |||
| Temperature range, min. | 173.15 | |||
| Temperature range, max. | 434.05 | |||
| Pvap | 0.07 | kPa | 173.15 | Calculated Property |
| Pvap | 1.25 | kPa | 202.14 | Calculated Property |
| Pvap | 9.84 | kPa | 231.13 | Calculated Property |
| Pvap | 45.64 | kPa | 260.12 | Calculated Property |
| Pvap | 149.26 | kPa | 289.10 | Calculated Property |
| Pvap | 384.41 | kPa | 318.09 | Calculated Property |
| Pvap | 838.00 | kPa | 347.08 | Calculated Property |
| Pvap | 1623.77 | kPa | 376.07 | Calculated Property |
| Pvap | 2893.67 | kPa | 405.06 | Calculated Property |
| Pvap | 4860.00 | kPa | 434.05 | Calculated Property |
| Pvap | [0.14; 4773.01] | kPa | [179.95; 454.00] |
KDB Vapor Pressure Data
|
| Equation | ln(Y) = A + B/T + C·ln(T) + D·T² + E/T² Y is Pvap in kPa, T in K | |||
| Coefficient A | 7.14672e+01 | |||
| Coefficient B | -5.12322e+03 | |||
| Coefficient C | -8.71388e+00 | |||
| Coefficient D | 7.76544e-06 | |||
| Coefficient E | 0.00000e+00 | |||
| Temperature range, min. | 179.95 | |||
| Temperature range, max. | 454.00 | |||
| Pvap | 0.14 | kPa | 179.95 | Calculated Property |
| Pvap | 2.34 | kPa | 210.40 | Calculated Property |
| Pvap | 17.42 | kPa | 240.85 | Calculated Property |
| Pvap | 75.86 | kPa | 271.30 | Calculated Property |
| Pvap | 231.15 | kPa | 301.75 | Calculated Property |
| Pvap | 550.88 | kPa | 332.20 | Calculated Property |
| Pvap | 1103.81 | kPa | 362.65 | Calculated Property |
| Pvap | 1952.70 | kPa | 393.10 | Calculated Property |
| Pvap | 3155.54 | kPa | 423.55 | Calculated Property |
| Pvap | 4773.01 | kPa | 454.00 | Calculated Property |
| Pvap | [0.13; 100.93] | kPa | [180.00; 278.40] |
NIST
|
| Equation | ln(Y) = A + B/(T + C) Y is Pvap in kPa, T in K | |||
| Coefficient A | 1.39083e+01 | |||
| Coefficient B | -2.19857e+03 | |||
| Coefficient C | -4.18380e+01 | |||
| Reference | Stull, 1947 | |||
| Comment | Coefficents calculated by NIST from author's data. | |||
| Temperature range, min. | 180.00 | |||
| Temperature range, max. | 278.40 | |||
| Pvap | 0.13 | kPa | 180.00 | Calculated Property |
| Pvap | 0.43 | kPa | 190.93 | Calculated Property |
| Pvap | 1.18 | kPa | 201.87 | Calculated Property |
| Pvap | 2.85 | kPa | 212.80 | Calculated Property |
| Pvap | 6.18 | kPa | 223.73 | Calculated Property |
| Pvap | 12.26 | kPa | 234.67 | Calculated Property |
| Pvap | 22.61 | kPa | 245.60 | Calculated Property |
| Pvap | 39.17 | kPa | 256.53 | Calculated Property |
| Pvap | 64.33 | kPa | 267.47 | Calculated Property |
| Pvap | 100.93 | kPa | 278.40 | Calculated Property |
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| ρl | [815.80; 413.06] | kg/m3 | [173.15; 439.22] |
ChemSep v8.3 pure component data Compiled value
|
| Equation | Y = A / B^(1 + (1 − T/C)^D) Y is ρl in kg/m3, T in K | |||
| Coefficient A | 6.55827e+01 | |||
| Coefficient B | 2.59310e-01 | |||
| Coefficient C | 4.54000e+02 | |||
| Coefficient D | 2.95530e-01 | |||
| Temperature range, min. | 173.15 | |||
| Temperature range, max. | 439.22 | |||
| ρl | 815.80 | kg/m3 | 173.15 | Calculated Property |
| ρl | 785.49 | kg/m3 | 202.71 | Calculated Property |
| ρl | 753.82 | kg/m3 | 232.28 | Calculated Property |
| ρl | 720.49 | kg/m3 | 261.84 | Calculated Property |
| ρl | 685.05 | kg/m3 | 291.40 | Calculated Property |
| ρl | 646.85 | kg/m3 | 320.97 | Calculated Property |
| ρl | 604.80 | kg/m3 | 350.53 | Calculated Property |
| ρl | 556.89 | kg/m3 | 380.09 | Calculated Property |
| ρl | 498.58 | kg/m3 | 409.66 | Calculated Property |
| ρl | 413.06 | kg/m3 | 439.22 | Calculated Property |
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| γ | [0.04; 5.77e-04] | N/m | [173.15; 439.22] |
ChemSep v8.3 pure component data Compiled value
|
| Equation | Y = A + exp(B/T + C + D·T + E·T²) Y is γ in N/m, T in K | |||
| Coefficient A | -1.29910e-01 | |||
| Coefficient B | -1.37950e+01 | |||
| Coefficient C | -1.44020e+00 | |||
| Coefficient D | -1.78320e-03 | |||
| Coefficient E | 1.13180e-06 | |||
| Temperature range, min. | 173.15 | |||
| Temperature range, max. | 439.22 | |||
| γ | 0.04 | N/m | 173.15 | Calculated Property |
| γ | 0.03 | N/m | 202.71 | Calculated Property |
| γ | 0.03 | N/m | 232.28 | Calculated Property |
| γ | 0.02 | N/m | 261.84 | Calculated Property |
| γ | 0.02 | N/m | 291.40 | Calculated Property |
| γ | 0.01 | N/m | 320.97 | Calculated Property |
| γ | 0.01 | N/m | 350.53 | Calculated Property |
| γ | 0.01 | N/m | 380.09 | Calculated Property |
| γ | 0.00 | N/m | 409.66 | Calculated Property |
| γ | 5.77e-04 | N/m | 439.22 | Calculated Property |
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| λgas | [0.01; 0.08] | W/m×K | [250.00; 1000.00] |
ChemSep v8.3 pure component data Compiled value
|
| Equation | Y = A·T^B / (1 + C/T + D/T²) Y is λgas in W/m×K, T in K | |||
| Coefficient A | 5.41970e-05 | |||
| Coefficient B | 1.06320e+00 | |||
| Coefficient C | -7.05890e+01 | |||
| Coefficient D | 9.06170e+04 | |||
| Temperature range, min. | 250.00 | |||
| Temperature range, max. | 1000.00 | |||
| λgas | 0.01 | W/m×K | 250.00 | Calculated Property |
| λgas | 0.02 | W/m×K | 333.33 | Calculated Property |
| λgas | 0.02 | W/m×K | 416.67 | Calculated Property |
| λgas | 0.03 | W/m×K | 500.00 | Calculated Property |
| λgas | 0.04 | W/m×K | 583.33 | Calculated Property |
| λgas | 0.05 | W/m×K | 666.67 | Calculated Property |
| λgas | 0.06 | W/m×K | 750.00 | Calculated Property |
| λgas | 0.07 | W/m×K | 833.33 | Calculated Property |
| λgas | 0.07 | W/m×K | 916.67 | Calculated Property |
| λgas | 0.08 | W/m×K | 1000.00 | Calculated Property |
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| λliquid | [0.17; 0.13] | W/m×K | [173.15; 278.25] |
ChemSep v8.3 pure component data Compiled value
|
| Equation | Y = A + exp(B/T + C + D·T + E·T²) Y is λliquid in W/m×K, T in K | |||
| Coefficient A | -5.88700e-02 | |||
| Coefficient B | -2.77180e+01 | |||
| Coefficient C | -9.23170e-01 | |||
| Coefficient D | -2.35810e-03 | |||
| Coefficient E | 1.57730e-07 | |||
| Temperature range, min. | 173.15 | |||
| Temperature range, max. | 278.25 | |||
| λliquid | 0.17 | W/m×K | 173.15 | Calculated Property |
| λliquid | 0.16 | W/m×K | 184.83 | Calculated Property |
| λliquid | 0.16 | W/m×K | 196.51 | Calculated Property |
| λliquid | 0.16 | W/m×K | 208.18 | Calculated Property |
| λliquid | 0.15 | W/m×K | 219.86 | Calculated Property |
| λliquid | 0.15 | W/m×K | 231.54 | Calculated Property |
| λliquid | 0.14 | W/m×K | 243.22 | Calculated Property |
| λliquid | 0.14 | W/m×K | 254.89 | Calculated Property |
| λliquid | 0.13 | W/m×K | 266.57 | Calculated Property |
| λliquid | 0.13 | W/m×K | 278.25 | Calculated Property |
Similar Compounds
Find more compounds similar to 1-Buten-3-yne.
Sources
- KDB Vapor Pressure Data
- PSRK revision IV (2005), critical constants and acentric factors of 1000 components ChEDL chemicals 1.5.2, from Horstmann, S.; Jabłoniec, A.; Krafczyk, J.; Fischer, K.; Gmehling, J. PSRK Group Contribution Equation of State: Comprehensive Revision and Extension IV, Including Critical Constants and α-Function Parameters for 1000 Components. Fluid Phase Equilib. 2005, 227, 157-164.
- ChemSep v8.3 pure component data Converted from ChemSep v8.3 pure component data, H. Kooijman and R. Taylor (2021, 2022), Artistic License 2.0; see how the values differ.
- Crippen Method
- Crippen Method
- Joback Method
- KDB
- McGowan Method
- NIST Webbook
- The Yaws Handbook of Vapor Pressure
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