- InChI
- InChI=1S/C2H4I2/c3-1-2-4/h1-2H2
- InChI Key
- GBBZLMLLFVFKJM-UHFFFAOYSA-N
- Formula
- C2H4I2
- SMILES
- ICCI
- Molecular Weight1
- 281.86
- CAS
- 624-73-7
- Other Names
-
- 1,2-Diiodoethane
- CH2ICH2I
- Diiodoethane
- Ethylene iodide
- ω : Acentric Factor.
- ΔcH°solid : Standard solid enthalpy of combustion (kJ/mol).
- Cp,gas : Ideal gas heat capacity (J/mol×K).
- η : Dynamic viscosity (Pa×s).
- ΔfH°gas : Enthalpy of formation at standard conditions (kJ/mol).
- ΔfH°solid : Solid phase enthalpy of formation at standard conditions (kJ/mol).
- ΔfusH° : Enthalpy of fusion at standard conditions (kJ/mol).
- ΔsubH° : Enthalpy of sublimation 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).
- Vc : Critical Volume (m3/kmol).
- Zc : Critical Compressibility.
- 1: Molecular weight from the IUPAC atomic weights tables.
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Physical Properties
| Property | Value | Unit | Source |
|---|---|---|---|
| ω | 0.2230 | KDB | |
| ΔcH°solid | -1368.00 ± 0.60 | kJ/mol | NIST |
| ΔfH°gas | [66.80; 73.30] | kJ/mol |
|
| ΔfH°gas | 73.30 ± 1.10 | kJ/mol | NIST |
| ΔfH°gas | 66.80 ± 1.70 | kJ/mol | NIST |
| ΔfH°solid | 9.30 ± 0.80 | kJ/mol | NIST |
| ΔfusH° | 9.75 | kJ/mol | Joback Calculated Property |
| ΔsubH° | 64.00 ± 0.70 | kJ/mol | NIST |
| ΔvapH° | 49.80 | kJ/mol | NIST |
| IE | [9.40; 9.50] | eV |
|
| IE | 9.40 | eV | NIST |
| IE | 9.50 ± 0.02 | eV | NIST |
| log10WS | -2.64 | Relay (1.0) Calculated Property | |
| logPoct/wat | 1.856 | Crippen Calculated Property | |
| McVol | 90.680 | ml/mol | McGowan Calculated Property |
| Pc | 4730.00 | kPa | KDB |
| Inp | [984.00; 1015.00] |
|
|
| Inp | 1002.00 | NIST | |
| Inp | 1015.00 | NIST | |
| Inp | 984.00 | NIST | |
| Inp | 1008.00 | NIST | |
| Inp | 1008.00 | NIST | |
| Inp | 1002.00 | NIST | |
| Tboil | [473.20; 473.20] | K |
|
| Tboil | 473.20 | K | KDB |
| Tboil | 473.20 | K | NIST |
| Tc | 749.90 | K | KDB |
| Tfus | 356.00 | K | KDB |
| Vc | 0.324 | m3/kmol | KDB |
| Zc | 0.2454120 | KDB |
Cheméo can also estimate Standard Gibbs free energy of formation 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 |
|---|---|---|---|---|
| ΔvapH | 47.70 | kJ/mol | 448.50 | NIST |
Correlations
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Cp,gas | [82.07; 140.85] | 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 | 2.44520e+01 | |||
| Coefficient B | 2.71800e-01 | |||
| Coefficient C | -2.47800e-04 | |||
| Coefficient D | 9.24000e-08 | |||
| Coefficient E | 0.00000e+00 | |||
| Temperature range, min. | 273.00 | |||
| Temperature range, max. | 1000.00 | |||
| Cp,gas | 82.07 | J/mol×K | 273.00 | Calculated Property |
| Cp,gas | 93.69 | J/mol×K | 353.78 | Calculated Property |
| Cp,gas | 103.35 | J/mol×K | 434.56 | Calculated Property |
| Cp,gas | 111.36 | J/mol×K | 515.33 | Calculated Property |
| Cp,gas | 117.99 | J/mol×K | 596.11 | Calculated Property |
| Cp,gas | 123.55 | J/mol×K | 676.89 | Calculated Property |
| Cp,gas | 128.32 | J/mol×K | 757.67 | Calculated Property |
| Cp,gas | 132.60 | J/mol×K | 838.44 | Calculated Property |
| Cp,gas | 136.68 | J/mol×K | 919.22 | Calculated Property |
| Cp,gas | 140.85 | J/mol×K | 1000.00 | Calculated Property |
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| η | [0.0009039; 0.0003028] | Pa×s | [356.00; 524.93] |
Joback Predicted correlation
|
| Equation | Y = exp(A + B/T + C·ln(T) + D·T^E) Y is η in Pa×s, T in K | |||
| Coefficient A | -1.04066e+01 | |||
| Coefficient B | 1.20960e+03 | |||
| Coefficient C | 0.00000e+00 | |||
| Coefficient D | 0.00000e+00 | |||
| Coefficient E | 0.00000e+00 | |||
| Comment | Liquid phase. Joback/Reid (1987), valid from Tf to 0.7·Tc. | |||
| Temperature range, min. | 356.00 | |||
| Temperature range, max. | 524.93 | |||
| η | 0.0009039 | Pa×s | 356.00 | Calculated Property |
| η | 0.0007624 | Pa×s | 374.77 | Calculated Property |
| η | 0.0006536 | Pa×s | 393.54 | Calculated Property |
| η | 0.0005683 | Pa×s | 412.31 | Calculated Property |
| η | 0.0005001 | Pa×s | 431.08 | Calculated Property |
| η | 0.0004449 | Pa×s | 449.85 | Calculated Property |
| η | 0.0003995 | Pa×s | 468.62 | Calculated Property |
| η | 0.0003617 | Pa×s | 487.39 | Calculated Property |
| η | 0.0003299 | Pa×s | 506.16 | Calculated Property |
| η | 0.0003028 | Pa×s | 524.93 | Calculated Property |
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Pvap | [1.33; 202.64] | kPa | [355.50; 505.75] |
The Yaws Handbook of Vapor Pressure
|
| Equation | ln(Y) = A + B/(T + C) Y is Pvap in kPa, T in K | |||
| Coefficient A | 1.22119e+01 | |||
| Coefficient B | -2.46094e+03 | |||
| Coefficient C | -1.49119e+02 | |||
| Temperature range, min. | 355.50 | |||
| Temperature range, max. | 505.75 | |||
| Pvap | 1.33 | kPa | 355.50 | Calculated Property |
| Pvap | 3.25 | kPa | 372.19 | Calculated Property |
| Pvap | 7.02 | kPa | 388.89 | Calculated Property |
| Pvap | 13.68 | kPa | 405.58 | Calculated Property |
| Pvap | 24.60 | kPa | 422.28 | Calculated Property |
| Pvap | 41.33 | kPa | 438.97 | Calculated Property |
| Pvap | 65.63 | kPa | 455.67 | Calculated Property |
| Pvap | 99.35 | kPa | 472.36 | Calculated Property |
| Pvap | 144.39 | kPa | 489.06 | Calculated Property |
| Pvap | 202.64 | kPa | 505.75 | Calculated Property |
| Pvap | [3.99; 4703.89] | kPa | [371.15; 749.91] |
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 | 8.57571e+01 | |||
| Coefficient B | -9.24244e+03 | |||
| Coefficient C | -1.01406e+01 | |||
| Coefficient D | 3.82987e-06 | |||
| Coefficient E | 0.00000e+00 | |||
| Temperature range, min. | 371.15 | |||
| Temperature range, max. | 749.91 | |||
| Pvap | 3.99 | kPa | 371.15 | Calculated Property |
| Pvap | 19.26 | kPa | 413.23 | Calculated Property |
| Pvap | 65.49 | kPa | 455.32 | Calculated Property |
| Pvap | 173.55 | kPa | 497.40 | Calculated Property |
| Pvap | 383.56 | kPa | 539.49 | Calculated Property |
| Pvap | 741.15 | kPa | 581.57 | Calculated Property |
| Pvap | 1295.17 | kPa | 623.66 | Calculated Property |
| Pvap | 2098.25 | kPa | 665.74 | Calculated Property |
| Pvap | 3210.19 | kPa | 707.83 | Calculated Property |
| Pvap | 4703.89 | kPa | 749.91 | Calculated Property |
Similar Compounds
Find more compounds similar to Ethane, 1,2-diiodo-.
Sources
- KDB Vapor Pressure Data
- Cheméo Relay (1.0)
- Crippen Method
- Crippen Method
- Joback Method
- KDB
- McGowan Method
- NIST Webbook
- The Yaws Handbook of Vapor Pressure
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