- InChI
- InChI=1S/C4H2N2/c1-4(2-5)3-6/h1H2
- InChI Key
- FCYVWWWTHPPJII-UHFFFAOYSA-N
- Formula
- C4H2N2
- SMILES
- C=C(C#N)C#N
- Molecular Weight1
- 78.07
- CAS
- 922-64-5
- Other Names
-
- Malononitrile, methylene-
- Vinylidene cyanide
- 1,1-Dicyanoethylene
- 1,1-Ethenedicarbonitrile
- 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).
- 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).
- 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° | 328.45 | kJ/mol | Joback Calculated Property |
| ΔfH°gas | 319.51 | kJ/mol | Joback Calculated Property |
| ΔfusH° | 6.54 | kJ/mol | Joback Calculated Property |
| ΔvapH° | 44.86 | kJ/mol | Joback Calculated Property |
| IE | 11.38 ± 0.05 | eV | NIST |
| log10WS | -1.08 | Crippen Calculated Property | |
| logPoct/wat | 0.590 | Crippen Calculated Property | |
| McVol | 65.680 | ml/mol | McGowan Calculated Property |
| Pc | 3881.95 | kPa | Joback Calculated Property |
| Tboil | 491.64 | K | Joback Calculated Property |
| Tc | 715.64 | K | Joback Calculated Property |
| Tfus | 249.10 | K | Joback Calculated Property |
| Vc | 0.293 | m3/kmol | Joback Calculated Property |
Temperature Dependent Properties
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Cp,gas | [112.43; 132.88] | J/mol×K | [491.64; 715.64] | 
|
| Cp,gas | 112.43 | J/mol×K | 491.64 | Joback Calculated Property |
| Cp,gas | 116.41 | J/mol×K | 528.97 | Joback Calculated Property |
| Cp,gas | 120.15 | J/mol×K | 566.31 | Joback Calculated Property |
| Cp,gas | 123.65 | J/mol×K | 603.64 | Joback Calculated Property |
| Cp,gas | 126.93 | J/mol×K | 640.98 | Joback Calculated Property |
| Cp,gas | 130.00 | J/mol×K | 678.31 | Joback Calculated Property |
| Cp,gas | 132.88 | J/mol×K | 715.64 | Joback Calculated Property |
Similar Compounds
Find more compounds similar to Propanedinitrile, methylene-.
Sources
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