- InChI
- InChI=1S/C2H2/c1-2/h1-2H
- InChI Key
- HSFWRNGVRCDJHI-UHFFFAOYSA-N
- Formula
- C2H2
- SMILES
- C#C
- Molecular Weight1
- 26.04
- CAS
- 74-86-2
- Other Names
-
- Acetylen
- C2H2
- UN 1001
- ethine
- ethyne
- narcylen
- vinylene
- ω : Acentric Factor.
- PAff : Proton affinity (kJ/mol).
- Tig : Autoignition Temperature (K).
- BasG : Gas basicity (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).
- LFL : Lower Flammability Limit (% in Air).
- UFL : Upper Flammability Limit (% in Air).
- ΔfG° : Standard Gibbs free energy of formation (kJ/mol).
- Rg : Radius of Gyration.
- 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).
- ΔsubH : Enthalpy of sublimation at a given temperature (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).
- NFPA Fire : NFPA Fire Rating.
- NFPA Health : NFPA Health Rating.
- NFPA Safety : NFPA Safety Rating.
- Pc : Critical Pressure (kPa).
- Ptriple : Triple Point Pressure (kPa).
- Pvap : Vapor pressure (kPa).
- ρc : Critical density (kg/m3).
- ρg : Gas Density (kg/m3).
- ρl : Liquid Density (kg/m3).
- Inp : Non-polar retention indices.
- ΔfusS : Entropy of fusion at a given temperature (J/mol×K).
- 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).
- Ttriple : Triple Point Temperature (K).
- UQi : UNIQUAC Qi Parameter.
- URi : UNIQUAC Ri Parameter.
- Vc : Critical Volume (m3/kmol).
- VCOSTALD : COSTALD Characteristic Volume (m3/kmol).
- ωSRK : SRK acentric factor.
- 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 | [0.1840; 0.1900] |
|
|
| ω | 0.1840 | PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value | |
| ω | 0.1841 | Passut and Danner (1973), critical constants and acentric factors Compiled value | |
| ω | 0.1890 | ChemSep v8.3 pure component data Compiled value | |
| ω | 0.1900 | KDB | |
| PAff | 641.40 | kJ/mol | NIST |
| Tig | 578.15 | K | KDB |
| BasG | 616.70 | kJ/mol | NIST |
| μ | [0.00; 0.00] | debye |
|
| μ | 0.00 | debye | ChemSep v8.3 pure component data Compiled value |
| μ | 0.00 | debye | KDB |
| LFL | 2.50 | % in Air | KDB |
| UFL | 80.00 | % in Air | KDB |
| ΔfG° | [209.30; 210.68] | kJ/mol |
|
| ΔfG° | 210.68 | kJ/mol | ChemSep v8.3 pure component data Compiled value |
| ΔfG° | 209.30 | kJ/mol | KDB |
| Rg | 1.0950 | KDB | |
| ΔfH°gas | [226.70; 228.32] | kJ/mol |
|
| ΔfH°gas | 228.32 ± 0.15 | kJ/mol | Active Thermochemical Tables 1.112, gas-phase enthalpies of formation Compiled value |
| ΔfH°gas | 228.20 | kJ/mol | ChemSep v8.3 pure component data Compiled value |
| ΔfH°gas | 226.90 | kJ/mol | KDB |
| ΔfH°gas | 227.40 ± 0.80 | kJ/mol | NIST |
| ΔfH°gas | 226.70 ± 0.79 | kJ/mol | NIST |
| ΔfusH° | 3.76 | kJ/mol | Joback Calculated Property |
| IE | [11.20; 11.49] | eV |
|
| IE | 11.40 ± 0.00 | eV | NIST |
| IE | 11.41 ± 0.01 | eV | NIST |
| IE | 11.40 | eV | NIST |
| IE | 11.40 | eV | NIST |
| IE | 11.40 | eV | NIST |
| IE | 11.40 | eV | NIST |
| IE | 11.40 ± 0.10 | eV | NIST |
| IE | 11.40 ± 0.10 | eV | NIST |
| IE | 11.40 ± 0.02 | eV | NIST |
| IE | Outlier 11.30 | eV | NIST |
| IE | 11.37 ± 0.05 | eV | NIST |
| IE | 11.40 ± 0.00 | eV | NIST |
| IE | 11.39 ± 0.01 | eV | NIST |
| IE | 11.40 ± 0.01 | eV | NIST |
| IE | 11.40 | eV | NIST |
| IE | 11.39 ± 0.02 | eV | NIST |
| IE | 11.39 ± 0.01 | eV | NIST |
| IE | 11.39 ± 0.05 | eV | NIST |
| IE | 11.41 ± 0.01 | eV | NIST |
| IE | 11.40 ± 0.01 | eV | NIST |
| IE | 11.40 ± 0.01 | eV | NIST |
| IE | 11.40 ± 0.00 | eV | NIST |
| IE | 11.40 ± 0.02 | eV | NIST |
| IE | 11.41 ± 0.01 | eV | NIST |
| IE | 11.41 ± 0.01 | eV | NIST |
| IE | Outlier 11.20 ± 0.10 | eV | NIST |
| IE | 11.41 | eV | NIST |
| IE | Outlier 11.49 | eV | NIST |
| IE | 11.43 | eV | NIST |
| log10WS | [0.29; 0.29] |
|
|
| log10WS | 0.29 | Aq. Solubility Prediction | |
| log10WS | 0.29 | Estimated Solubility | |
| logPoct/wat | 0.249 | Crippen Calculated Property | |
| McVol | 30.440 | ml/mol | McGowan Calculated Property |
| NFPA Fire | 4 | KDB | |
| NFPA Health | 1 | KDB | |
| NFPA Safety | 3 | KDB | |
| Pc | [6114.00; 6140.30] | kPa |
|
| Pc | 6138.00 | kPa | IUPAC Vapor-Liquid Critical Properties of Elements and Compounds, part 6 Compiled value |
| Pc | 6140.30 | kPa | PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value |
| Pc | 6139.09 | kPa | Passut and Danner (1973), critical constants and acentric factors Compiled value |
| Pc | Outlier 6114.00 | kPa | ChemSep v8.3 pure component data Compiled value |
| Pc | 6138.00 | kPa | Air Liquide Gas Encyclopedia |
| Pc | 6138.00 | kPa | KDB |
| Pc | 6138.00 ± 10.00 | kPa | NIST |
| Ptriple | [127.40; 128.25] | kPa |
|
| Ptriple | 128.19 | kPa | Staveley, Lobo and Calado (1981), triple points Compiled value |
| Ptriple | 127.45 | kPa | ChemSep v8.3 pure component data Compiled value |
| Ptriple | 127.40 | kPa | Air Liquide Gas Encyclopedia |
| Ptriple | 128.25 ± 0.39 | kPa | NIST |
| ρc | [231.99; 232.50] | kg/m3 |
|
| ρc | 232.50 | kg/m3 | Air Liquide Gas Encyclopedia |
| ρc | 231.99 ± 0.26 | kg/m3 | NIST |
| Inp | [155.00; 195.00] |
|
|
| Inp | 155.00 | NIST | |
| Inp | 157.00 | NIST | |
| Inp | 156.00 | NIST | |
| Inp | 156.00 | NIST | |
| Inp | Outlier 195.00 | NIST | |
| Inp | 182.00 | NIST | |
| Inp | 176.00 | NIST | |
| Inp | 156.00 | NIST | |
| Inp | 182.00 | NIST | |
| Inp | 155.00 | NIST | |
| Inp | 165.00 | NIST | |
| Inp | 165.00 | NIST | |
| Tboil | [188.40; 189.60] | K |
|
| Tboil | 188.40 | K | ChemSep v8.3 pure component data Compiled value |
| Tboil | 188.43 | K | KDB |
| Tboil | 189.00 | K | NIST |
| Tboil | 189.60 ± 0.30 | K | NIST |
| Tc | [308.30; 309.70] | K |
|
| Tc | 308.30 | K | IUPAC Vapor-Liquid Critical Properties of Elements and Compounds, part 6 Compiled value |
| Tc | 308.30 | K | PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value |
| Tc | 308.32 | K | Passut and Danner (1973), critical constants and acentric factors Compiled value |
| Tc | 308.30 | K | ChemSep v8.3 pure component data Compiled value |
| Tc | 308.90 | K | Air Liquide Gas Encyclopedia |
| Tc | 308.30 | K | KDB |
| Tc | 308.30 ± 0.10 | K | NIST |
| Tc | 308.35 | K | NIST |
| Tc | 308.66 | K | NIST |
| Tc | Outlier 309.70 ± 0.60 | K | NIST |
| Tfus | [171.65; 192.40] | K |
|
| Tfus | 192.40 | K | Jean-Claude Bradley Open Melting Point Dataset (2014, CC0) Compiled value |
| Tfus | 192.40 | K | ChemSep v8.3 pure component data Compiled value |
| Tfus | 192.40 | K | Air Liquide Gas Encyclopedia |
| Tfus | 192.40 | K | KDB |
| Tfus | 192.40 | K | Aq. Solubility Prediction |
| Tfus | Outlier 171.65 ± 0.50 | K | NIST |
| Tfus | 191.40 ± 1.00 | K | NIST |
| Tfus | 191.65 ± 0.50 | K | NIST |
| Ttriple | [191.35; 192.61] | K |
|
| Ttriple | 192.61 | K | Staveley, Lobo and Calado (1981), triple points Compiled value |
| Ttriple | 192.40 | K | ChemSep v8.3 pure component data Compiled value |
| Ttriple | 192.40 | K | Air Liquide Gas Encyclopedia |
| Ttriple | 192.40 ± 0.50 | K | NIST |
| Ttriple | 191.35 ± 0.30 | K | NIST |
| UQi | 1.39 | ChemSep v8.3 pure component data Compiled value | |
| URi | 1.52 | ChemSep v8.3 pure component data Compiled value | |
| Vc | [0.112; 0.113] | m3/kmol |
|
| Vc | 0.112 | m3/kmol | IUPAC Vapor-Liquid Critical Properties of Elements and Compounds, part 6 Compiled value |
| Vc | 0.113 | m3/kmol | PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value |
| Vc | 0.112 | m3/kmol | ChemSep v8.3 pure component data Compiled value |
| Vc | 0.112 | m3/kmol | KDB |
| Vc | 0.112 | m3/kmol | NIST |
| Vc | 0.113 | m3/kmol | NIST |
| VCOSTALD | 0.11 | m3/kmol | Hankinson and Thomson (1979), COSTALD parameters Compiled value |
| ωSRK | 0.20 | Hankinson and Thomson (1979), COSTALD parameters Compiled value | |
| Zc | [0.2680000; 0.2690000] |
|
|
| Zc | 0.2690000 | IUPAC Vapor-Liquid Critical Properties of Elements and Compounds, part 6 Compiled value | |
| Zc | 0.2680000 | ChemSep v8.3 pure component data Compiled value | |
| Zc | 0.2686640 | KDB | |
| Zra | [0.27; 0.27] |
|
|
| Zra | 0.27 | Hankinson and Thomson (1979), COSTALD parameters Compiled value | |
| Zra | 0.27 | ChemSep v8.3 pure component data Compiled value | |
| Zra | 0.27 | KDB |
Cheméo can also estimate Enthalpy of vaporization at standard conditions for this compound, but it falls outside the models' validated range, so it is not shown here. Open the prediction tool to compute it on demand.
Temperature Dependent Properties
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| ΔfusH | [2.54; 3.76] | kJ/mol | [142.70; 192.40] |
|
| ΔfusH | 2.54 | kJ/mol | 142.70 | NIST |
| ΔfusH | 3.76 | kJ/mol | 192.40 | NIST |
| ΔfusH | 3.76 | kJ/mol | 192.40 | NIST |
| ΔsubH | [21.80; 25.20] | kJ/mol | [121.50; 172.00] |
|
| ΔsubH | 23.50 | kJ/mol | 121.50 | NIST |
| ΔsubH | 22.10 | kJ/mol | 129.00 | NIST |
| ΔsubH | 22.70 | kJ/mol | 159.50 | NIST |
| ΔsubH | 21.80 | kJ/mol | 162.00 | NIST |
| ΔsubH | 25.20 | kJ/mol | 172.00 | NIST |
| ΔvapH | [16.30; 17.00] | kJ/mol | [192.40; 283.00] |
|
| ΔvapH | 16.67 | kJ/mol | 192.40 | KDB |
| ΔvapH | 16.80 | kJ/mol | 200.00 | NIST |
| ΔvapH | 16.70 | kJ/mol | 208.50 | NIST |
| ΔvapH | 17.00 | kJ/mol | 214.00 | NIST |
| ΔvapH | 16.70 | kJ/mol | 250.00 | NIST |
| ΔvapH | 16.40 | kJ/mol | 261.50 | NIST |
| ΔvapH | 16.30 | kJ/mol | 283.00 | NIST |
| ρg | 1.11 | kg/m3 | 288.15 | Air Liquide Gas Encyclopedia |
| ρl | 615.00 | kg/m3 | 189.00 | KDB |
| ΔfusS | [17.80; 19.50] | J/mol×K | [142.70; 192.40] |
|
| ΔfusS | 17.80 | J/mol×K | 142.70 | NIST |
| ΔfusS | 19.50 | J/mol×K | 192.40 | NIST |
| γ | 0.02 | N/m | 203.20 | KDB |
Correlations
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Cp,gas | [28.67; 75.47] | J/mol×K | [80.00; 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 | 2.82717e+01 | |||
| Coefficient B | -4.04249e+02 | |||
| Coefficient C | 4.14796e+00 | |||
| Coefficient D | -2.29636e-04 | |||
| Coefficient E | 1.42421e-07 | |||
| Temperature range, min. | 80.00 | |||
| Temperature range, max. | 1500.00 | |||
| Cp,gas | 28.67 | J/mol×K | 80.00 | Calculated Property |
| Cp,gas | 39.31 | J/mol×K | 237.78 | Calculated Property |
| Cp,gas | 49.54 | J/mol×K | 395.56 | Calculated Property |
| Cp,gas | 56.32 | J/mol×K | 553.33 | Calculated Property |
| Cp,gas | 61.00 | J/mol×K | 711.11 | Calculated Property |
| Cp,gas | 64.53 | J/mol×K | 868.89 | Calculated Property |
| Cp,gas | 67.47 | J/mol×K | 1026.67 | Calculated Property |
| Cp,gas | 70.14 | J/mol×K | 1184.44 | Calculated Property |
| Cp,gas | 72.76 | J/mol×K | 1342.22 | Calculated Property |
| Cp,gas | 75.47 | J/mol×K | 1500.00 | Calculated Property |
| Cp,gas | [44.07; 70.26] | J/mol×K | [298.00; 1100.00] |
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 | 4.06870e+01 | |||
| Coefficient B | 4.07328e+01 | |||
| Coefficient C | -1.61784e+01 | |||
| Coefficient D | 3.66974e+00 | |||
| Coefficient E | -6.58411e-01 | |||
| Reference | Chase, 1998 | |||
| Comment | F=210.7067, G=235.0052, H=226.7314; Data last reviewed in March, 1961 | |||
| Temperature range, min. | 298.00 | |||
| Temperature range, max. | 1100.00 | |||
| Cp,gas | 44.07 | J/mol×K | 298.00 | Calculated Property |
| Cp,gas | 49.85 | J/mol×K | 387.11 | Calculated Property |
| Cp,gas | 53.91 | J/mol×K | 476.22 | Calculated Property |
| Cp,gas | 57.15 | J/mol×K | 565.33 | Calculated Property |
| Cp,gas | 59.91 | J/mol×K | 654.44 | Calculated Property |
| Cp,gas | 62.35 | J/mol×K | 743.56 | Calculated Property |
| Cp,gas | 64.56 | J/mol×K | 832.67 | Calculated Property |
| Cp,gas | 66.59 | J/mol×K | 921.78 | Calculated Property |
| Cp,gas | 68.48 | J/mol×K | 1010.89 | Calculated Property |
| Cp,gas | 70.26 | J/mol×K | 1100.00 | Calculated Property |
| Cp,gas | [70.03; 94.35] | J/mol×K | [1100.00; 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 | 6.74724e+01 | |||
| Coefficient B | 1.17511e+01 | |||
| Coefficient C | -2.02147e+00 | |||
| Coefficient D | 1.36195e-01 | |||
| Coefficient E | -9.80642e+00 | |||
| Reference | Chase, 1998 | |||
| Comment | F=185.4550, G=253.5337, H=226.7314; Data last reviewed in March, 1961 | |||
| Temperature range, min. | 1100.00 | |||
| Temperature range, max. | 6000.00 | |||
| Cp,gas | 70.03 | J/mol×K | 1100.00 | Calculated Property |
| Cp,gas | 78.31 | J/mol×K | 1644.44 | Calculated Property |
| Cp,gas | 82.89 | J/mol×K | 2188.89 | Calculated Property |
| Cp,gas | 85.96 | J/mol×K | 2733.33 | Calculated Property |
| Cp,gas | 88.16 | J/mol×K | 3277.78 | Calculated Property |
| Cp,gas | 89.79 | J/mol×K | 3822.22 | Calculated Property |
| Cp,gas | 91.07 | J/mol×K | 4366.67 | Calculated Property |
| Cp,gas | 92.15 | J/mol×K | 4911.11 | Calculated Property |
| Cp,gas | 93.20 | J/mol×K | 5455.56 | Calculated Property |
| Cp,gas | 94.35 | J/mol×K | 6000.00 | Calculated Property |
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Cp,liquid | [80.23; 88.53] | J/mol×K | [192.40; 250.00] |
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 | 7.92270e+01 | |||
| Coefficient B | 3.17720e+03 | |||
| Coefficient C | -5.11568e+01 | |||
| Coefficient D | 2.38140e-01 | |||
| Coefficient E | -3.01710e-04 | |||
| Temperature range, min. | 192.40 | |||
| Temperature range, max. | 250.00 | |||
| Cp,liquid | 80.23 | J/mol×K | 192.40 | Calculated Property |
| Cp,liquid | 80.50 | J/mol×K | 198.80 | Calculated Property |
| Cp,liquid | 80.86 | J/mol×K | 205.20 | Calculated Property |
| Cp,liquid | 81.32 | J/mol×K | 211.60 | Calculated Property |
| Cp,liquid | 81.93 | J/mol×K | 218.00 | Calculated Property |
| Cp,liquid | 82.71 | J/mol×K | 224.40 | Calculated Property |
| Cp,liquid | 83.71 | J/mol×K | 230.80 | Calculated Property |
| Cp,liquid | 84.98 | J/mol×K | 237.20 | Calculated Property |
| Cp,liquid | 86.57 | J/mol×K | 243.60 | Calculated Property |
| Cp,liquid | 88.53 | J/mol×K | 250.00 | Calculated Property |
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| η | [0.0003099; 0.0000793] | Pa×s | [153.15; 300.00] |
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 | -1.08220e+01 | |||
| Coefficient B | 2.83230e+02 | |||
| Coefficient C | 2.20070e-01 | |||
| Coefficient D | -9.11260e-06 | |||
| Coefficient E | 2.00000e+00 | |||
| Temperature range, min. | 153.15 | |||
| Temperature range, max. | 300.00 | |||
| η | 0.0003099 | Pa×s | 153.15 | Calculated Property |
| η | 0.0002528 | Pa×s | 169.47 | Calculated Property |
| η | 0.0002113 | Pa×s | 185.78 | Calculated Property |
| η | 0.0001797 | Pa×s | 202.10 | Calculated Property |
| η | 0.0001546 | Pa×s | 218.42 | Calculated Property |
| η | 0.0001342 | Pa×s | 234.73 | Calculated Property |
| η | 0.0001171 | Pa×s | 251.05 | Calculated Property |
| η | 0.0001026 | Pa×s | 267.37 | Calculated Property |
| η | 0.0000902 | Pa×s | 283.68 | Calculated Property |
| η | 0.0000793 | Pa×s | 300.00 | Calculated Property |
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| ΔvapH | [16.65; 0.00] | kJ/mol | [192.40; 308.30] |
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 | 3.88170e+01 | |||
| Coefficient B | 1.49700e+00 | |||
| Coefficient C | -1.02610e+00 | |||
| Coefficient D | 3.73480e-02 | |||
| Coefficient E | -2.44010e-02 | |||
| Critical temperature, Tc (K) | 3.08300e+02 | |||
| Comment | Range stopped at Tc; ChemSep gives it to 308.7 K. | |||
| Temperature range, min. | 192.40 | |||
| Temperature range, max. | 308.30 | |||
| ΔvapH | 16.65 | kJ/mol | 192.40 | Calculated Property |
| ΔvapH | 15.75 | kJ/mol | 205.28 | Calculated Property |
| ΔvapH | 14.86 | kJ/mol | 218.16 | Calculated Property |
| ΔvapH | 13.96 | kJ/mol | 231.03 | Calculated Property |
| ΔvapH | 13.04 | kJ/mol | 243.91 | Calculated Property |
| ΔvapH | 12.04 | kJ/mol | 256.79 | Calculated Property |
| ΔvapH | 10.90 | kJ/mol | 269.67 | Calculated Property |
| ΔvapH | 9.45 | kJ/mol | 282.54 | Calculated Property |
| ΔvapH | 7.29 | kJ/mol | 295.42 | Calculated Property |
| ΔvapH | 0.00 | kJ/mol | 308.30 | Calculated Property |
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Pvap | [1.33; 5425.42] | kPa | [144.63; 268.30] |
The Yaws Handbook of Vapor Pressure
|
| Equation | ln(Y) = A + B/(T + C) Y is Pvap in kPa, T in K | |||
| Coefficient A | 1.76267e+01 | |||
| Coefficient B | -2.32926e+03 | |||
| Coefficient C | -1.02910e+01 | |||
| Temperature range, min. | 144.63 | |||
| Temperature range, max. | 268.30 | |||
| Pvap | 1.33 | kPa | 144.63 | Calculated Property |
| Pvap | 6.67 | kPa | 158.37 | Calculated Property |
| Pvap | 25.35 | kPa | 172.11 | Calculated Property |
| Pvap | 78.20 | kPa | 185.85 | Calculated Property |
| Pvap | 204.86 | kPa | 199.59 | Calculated Property |
| Pvap | 471.07 | kPa | 213.34 | Calculated Property |
| Pvap | 974.72 | kPa | 227.08 | Calculated Property |
| Pvap | 1849.37 | kPa | 240.82 | Calculated Property |
| Pvap | 3264.95 | kPa | 254.56 | Calculated Property |
| Pvap | 5425.42 | kPa | 268.30 | Calculated Property |
| Pvap | [97.39; 6133.42] | kPa | [187.75; 308.33] |
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 | 7.53138e+01 | |||
| Coefficient B | -3.60325e+03 | |||
| Coefficient C | -1.00271e+01 | |||
| Coefficient D | 2.69397e-05 | |||
| Coefficient E | 2.00000e+00 | |||
| Temperature range, min. | 187.75 | |||
| Temperature range, max. | 308.33 | |||
| Pvap | 97.39 | kPa | 187.75 | Calculated Property |
| Pvap | 201.58 | kPa | 201.15 | Calculated Property |
| Pvap | 375.52 | kPa | 214.55 | Calculated Property |
| Pvap | 644.04 | kPa | 227.94 | Calculated Property |
| Pvap | 1034.83 | kPa | 241.34 | Calculated Property |
| Pvap | 1579.00 | kPa | 254.74 | Calculated Property |
| Pvap | 2312.46 | kPa | 268.14 | Calculated Property |
| Pvap | 3278.23 | kPa | 281.53 | Calculated Property |
| Pvap | 4529.44 | kPa | 294.93 | Calculated Property |
| Pvap | 6133.42 | kPa | 308.33 | Calculated Property |
| Pvap | [104.13; 6143.68] | kPa | [189.00; 308.32] |
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 | 7.88347e+01 | |||
| Coefficient B | -3.71141e+03 | |||
| Coefficient C | -1.05984e+01 | |||
| Coefficient D | 2.80537e-05 | |||
| Coefficient E | 0.00000e+00 | |||
| Temperature range, min. | 189.00 | |||
| Temperature range, max. | 308.32 | |||
| Pvap | 104.13 | kPa | 189.00 | Calculated Property |
| Pvap | 212.69 | kPa | 202.26 | Calculated Property |
| Pvap | 391.96 | kPa | 215.52 | Calculated Property |
| Pvap | 666.26 | kPa | 228.77 | Calculated Property |
| Pvap | 1062.50 | kPa | 242.03 | Calculated Property |
| Pvap | 1610.82 | kPa | 255.29 | Calculated Property |
| Pvap | 2346.01 | kPa | 268.55 | Calculated Property |
| Pvap | 3309.76 | kPa | 281.80 | Calculated Property |
| Pvap | 4553.77 | kPa | 295.06 | Calculated Property |
| Pvap | 6143.68 | kPa | 308.32 | Calculated Property |
| Pvap | [377.80; 6124.88] | kPa | [214.64; 308.33] |
NIST
|
| Equation | ln(Y) = A + B/(T + C) Y is Pvap in kPa, T in K | |||
| Coefficient A | 1.53385e+01 | |||
| Coefficient B | -2.09323e+03 | |||
| Coefficient C | 7.94700e+00 | |||
| Reference | Ambrose and Townsend, 1964, 2 | |||
| Comment | Coefficents calculated by NIST from author's data. | |||
| Temperature range, min. | 214.64 | |||
| Temperature range, max. | 308.33 | |||
| Pvap | 377.80 | kPa | 214.64 | Calculated Property |
| Pvap | 575.09 | kPa | 225.05 | Calculated Property |
| Pvap | 844.50 | kPa | 235.46 | Calculated Property |
| Pvap | 1201.65 | kPa | 245.87 | Calculated Property |
| Pvap | 1662.98 | kPa | 256.28 | Calculated Property |
| Pvap | 2245.43 | kPa | 266.69 | Calculated Property |
| Pvap | 2966.10 | kPa | 277.10 | Calculated Property |
| Pvap | 3841.96 | kPa | 287.51 | Calculated Property |
| Pvap | 4889.58 | kPa | 297.92 | Calculated Property |
| Pvap | 6124.88 | kPa | 308.33 | Calculated Property |
| Pvap | [128.24; 257.79] | kPa | [192.59; 206.30] |
NIST
|
| Equation | ln(Y) = A + B/(T + C) Y is Pvap in kPa, T in K | |||
| Coefficient A | 1.42668e+01 | |||
| Coefficient B | -1.61073e+03 | |||
| Coefficient C | -2.14700e+01 | |||
| Reference | Ambrose, 1956, 2 | |||
| Comment | Coefficents calculated by NIST from author's data. | |||
| Temperature range, min. | 192.59 | |||
| Temperature range, max. | 206.30 | |||
| Pvap | 128.24 | kPa | 192.59 | Calculated Property |
| Pvap | 139.35 | kPa | 194.11 | Calculated Property |
| Pvap | 151.20 | kPa | 195.64 | Calculated Property |
| Pvap | 163.82 | kPa | 197.16 | Calculated Property |
| Pvap | 177.25 | kPa | 198.68 | Calculated Property |
| Pvap | 191.53 | kPa | 200.21 | Calculated Property |
| Pvap | 206.68 | kPa | 201.73 | Calculated Property |
| Pvap | 222.75 | kPa | 203.25 | Calculated Property |
| Pvap | 239.78 | kPa | 204.78 | Calculated Property |
| Pvap | 257.79 | kPa | 206.30 | Calculated Property |
| Pvap | [377.80; 6124.88] | kPa | [214.64; 308.33] |
NIST
|
| Equation | ln(Y) = A + B/(T + C) Y is Pvap in kPa, T in K | |||
| Coefficient A | 1.53385e+01 | |||
| Coefficient B | -2.09323e+03 | |||
| Coefficient C | 7.94700e+00 | |||
| Reference | Ambrose and Townsend, 1964 | |||
| Comment | Coefficents calculated by NIST from author's data. | |||
| Temperature range, min. | 214.64 | |||
| Temperature range, max. | 308.33 | |||
| Pvap | 377.80 | kPa | 214.64 | Calculated Property |
| Pvap | 575.09 | kPa | 225.05 | Calculated Property |
| Pvap | 844.50 | kPa | 235.46 | Calculated Property |
| Pvap | 1201.65 | kPa | 245.87 | Calculated Property |
| Pvap | 1662.98 | kPa | 256.28 | Calculated Property |
| Pvap | 2245.43 | kPa | 266.69 | Calculated Property |
| Pvap | 2966.10 | kPa | 277.10 | Calculated Property |
| Pvap | 3841.96 | kPa | 287.51 | Calculated Property |
| Pvap | 4889.58 | kPa | 297.92 | Calculated Property |
| Pvap | 6124.88 | kPa | 308.33 | Calculated Property |
| Pvap | [128.24; 257.79] | kPa | [192.59; 206.30] |
NIST
|
| Equation | ln(Y) = A + B/(T + C) Y is Pvap in kPa, T in K | |||
| Coefficient A | 1.42668e+01 | |||
| Coefficient B | -1.61073e+03 | |||
| Coefficient C | -2.14700e+01 | |||
| Reference | Ambrose, 1956 | |||
| Comment | Coefficents calculated by NIST from author's data. | |||
| Temperature range, min. | 192.59 | |||
| Temperature range, max. | 206.30 | |||
| Pvap | 128.24 | kPa | 192.59 | Calculated Property |
| Pvap | 139.35 | kPa | 194.11 | Calculated Property |
| Pvap | 151.20 | kPa | 195.64 | Calculated Property |
| Pvap | 163.82 | kPa | 197.16 | Calculated Property |
| Pvap | 177.25 | kPa | 198.68 | Calculated Property |
| Pvap | 191.53 | kPa | 200.21 | Calculated Property |
| Pvap | 206.68 | kPa | 201.73 | Calculated Property |
| Pvap | 222.75 | kPa | 203.25 | Calculated Property |
| Pvap | 239.78 | kPa | 204.78 | Calculated Property |
| Pvap | 257.79 | kPa | 206.30 | Calculated Property |
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| ρl | [621.62; 294.60] | kg/m3 | [189.54; 307.80] |
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 | 7.35944e+01 | |||
| Coefficient B | 2.93160e-01 | |||
| Coefficient C | 3.08300e+02 | |||
| Coefficient D | 3.17110e-01 | |||
| Temperature range, min. | 189.54 | |||
| Temperature range, max. | 307.80 | |||
| ρl | 621.62 | kg/m3 | 189.54 | Calculated Property |
| ρl | 601.39 | kg/m3 | 202.68 | Calculated Property |
| ρl | 580.10 | kg/m3 | 215.82 | Calculated Property |
| ρl | 557.50 | kg/m3 | 228.96 | Calculated Property |
| ρl | 533.23 | kg/m3 | 242.10 | Calculated Property |
| ρl | 506.69 | kg/m3 | 255.24 | Calculated Property |
| ρl | 476.90 | kg/m3 | 268.38 | Calculated Property |
| ρl | 441.86 | kg/m3 | 281.52 | Calculated Property |
| ρl | 396.27 | kg/m3 | 294.66 | Calculated Property |
| ρl | 294.60 | kg/m3 | 307.80 | Calculated Property |
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| γ | [0.02; 6.06e-04] | N/m | [183.15; 301.71] |
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 | -5.82880e-03 | |||
| Coefficient B | 4.69570e+02 | |||
| Coefficient C | -1.01440e+01 | |||
| Coefficient D | 3.68480e-02 | |||
| Coefficient E | -8.32240e-05 | |||
| Temperature range, min. | 183.15 | |||
| Temperature range, max. | 301.71 | |||
| γ | 0.02 | N/m | 183.15 | Calculated Property |
| γ | 0.02 | N/m | 196.32 | Calculated Property |
| γ | 0.02 | N/m | 209.50 | Calculated Property |
| γ | 0.01 | N/m | 222.67 | Calculated Property |
| γ | 0.01 | N/m | 235.84 | Calculated Property |
| γ | 0.01 | N/m | 249.02 | Calculated Property |
| γ | 0.01 | N/m | 262.19 | Calculated Property |
| γ | 0.00 | N/m | 275.36 | Calculated Property |
| γ | 0.00 | N/m | 288.54 | Calculated Property |
| γ | 6.06e-04 | N/m | 301.71 | Calculated Property |
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| λgas | [0.01; 0.10] | W/m×K | [192.40; 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 | 7.80960e-05 | |||
| Coefficient B | 1.02860e+00 | |||
| Coefficient C | -3.65150e+01 | |||
| Coefficient D | 3.31440e+04 | |||
| Temperature range, min. | 192.40 | |||
| Temperature range, max. | 1000.00 | |||
| λgas | 0.01 | W/m×K | 192.40 | Calculated Property |
| λgas | 0.02 | W/m×K | 282.13 | Calculated Property |
| λgas | 0.03 | W/m×K | 371.87 | Calculated Property |
| λgas | 0.04 | W/m×K | 461.60 | Calculated Property |
| λgas | 0.05 | W/m×K | 551.33 | Calculated Property |
| λgas | 0.06 | W/m×K | 641.07 | Calculated Property |
| λgas | 0.07 | W/m×K | 730.80 | Calculated Property |
| λgas | 0.08 | W/m×K | 820.53 | Calculated Property |
| λgas | 0.09 | W/m×K | 910.27 | Calculated Property |
| λgas | 0.10 | W/m×K | 1000.00 | Calculated Property |
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| λliquid | [0.17; 0.12] | W/m×K | [192.40; 250.00] |
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 | -6.03280e-02 | |||
| Coefficient B | -1.10300e+02 | |||
| Coefficient C | 4.45670e-01 | |||
| Coefficient D | -7.38320e-03 | |||
| Coefficient E | 2.45810e-06 | |||
| Temperature range, min. | 192.40 | |||
| Temperature range, max. | 250.00 | |||
| λliquid | 0.17 | W/m×K | 192.40 | Calculated Property |
| λliquid | 0.17 | W/m×K | 198.80 | Calculated Property |
| λliquid | 0.16 | W/m×K | 205.20 | Calculated Property |
| λliquid | 0.16 | W/m×K | 211.60 | Calculated Property |
| λliquid | 0.15 | W/m×K | 218.00 | Calculated Property |
| λliquid | 0.15 | W/m×K | 224.40 | Calculated Property |
| λliquid | 0.14 | W/m×K | 230.80 | Calculated Property |
| λliquid | 0.14 | W/m×K | 237.20 | Calculated Property |
| λliquid | 0.13 | W/m×K | 243.60 | Calculated Property |
| λliquid | 0.12 | W/m×K | 250.00 | Calculated Property |
Similar Compounds
Find more compounds similar to Acetylene.
Mixtures
- Acetylene + Ethanol, 2,2'-oxybis-
- Acetylene + 1,2-Ethanediol
- Acetylene + 2-Propanol
- Acetylene + 1-Propanol, 2-methyl-
- Acetylene + 1-Butanol
- Acetylene + 1,4-Butanediol
- Acetylene + Linalool
- Acetylene + 2-Pyrrolidinone, 1-methyl-
- Acetylene + 5-Hepten-2-one, 6-methyl-
- Acetylene + 5,9-Undecadien-2-one, 6,10-dimethyl-, (E)-
- Acetylene + 1-vinyl-2-pyrrolidinone
- 2-Pyrrolidinone + Acetylene
Sources
- KDB Vapor Pressure Data
- Air Liquide Gas Encyclopedia
- 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.
- Jean-Claude Bradley Open Melting Point Dataset (2014, CC0) ChEDL chemicals 1.5.2, from Bradley, J.-C.; Williams, A.; Lang, A. Jean-Claude Bradley Open Melting Point Dataset. Figshare, 2014 (CC0).
- Hankinson and Thomson (1979), COSTALD parameters ChEDL chemicals 1.5.2, from Hankinson, R. W.; Thomson, G. H. A New Correlation for Saturated Densities of Liquids and Their Mixtures. AIChE J. 1979, 25, 653-663.
- IUPAC Vapor-Liquid Critical Properties of Elements and Compounds, part 6 ChEDL chemicals 1.5.2, from Tsonopoulos, C.; Ambrose, D. Vapor-Liquid Critical Properties of Elements and Compounds. 6. Unsaturated Aliphatic Hydrocarbons. J. Chem. Eng. Data 1996, 41, 645-656.
- Passut and Danner (1973), critical constants and acentric factors ChEDL chemicals 1.5.2, from Passut, C. A.; Danner, R. P. Acentric Factor. A Valuable Correlating Parameter for the Properties of Hydrocarbons. Ind. Eng. Chem. Process Des. Dev. 1973, 12, 365-368.
- 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.
- 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.
- 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
- Solubility of Acetylene in Alcohols and Ketones
- Joback Method
- KDB
- Aqueous Solubility Prediction Method
- Estimated Solubility Method
- McGowan Method
- NIST Webbook
- The Yaws Handbook of Vapor Pressure
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