- InChI
- InChI=1S/CHNO/c2-1-3/h2H
- InChI Key
- OWIKHYCFFJSOEH-UHFFFAOYSA-N
- Formula
- CHNO
- SMILES
- N=C=O
- Molecular Weight1
- 43.02
- CAS
- 75-13-8
- ω : Acentric Factor.
- PAff : Proton affinity (kJ/mol).
- BasG : Gas basicity (kJ/mol).
- 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).
- IE : Ionization energy (eV).
- 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 |
|---|---|---|---|
| ω | 0.3666 | Relay (1.0) Calculated Property | |
| PAff | 753.00 | kJ/mol | NIST |
| BasG | 718.80 | kJ/mol | NIST |
| ΔfG° | 59.41 | kJ/mol | Joback Calculated Property |
| ΔfH°gas | -97.00 ± 13.00 | kJ/mol | NIST |
| IE | [11.60; 11.62] | eV |
|
| IE | 11.60 ± 0.01 | eV | NIST |
| IE | 11.60 ± 0.01 | eV | NIST |
| IE | 11.62 ± 0.02 | eV | NIST |
| IE | 11.60 ± 0.01 | eV | NIST |
| logPoct/wat | -0.099 | Crippen Calculated Property | |
| McVol | 32.200 | ml/mol | McGowan Calculated Property |
| Pc | 7104.63 | kPa | Relay (1.0-beta) Calculated Property |
| Tboil | 307.29 | K | Relay (1.0) Calculated Property |
| Tc | 425.95 | K | Relay (1.0) Calculated Property |
| Tfus | 269.13 | K | Relay (1.0) Calculated Property |
| Vc | 0.126 | m3/kmol | Relay (1.0) Calculated Property |
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 |
|---|---|---|---|---|
| Cp,gas | [17.53; 40.50] | J/mol×K | [100.12; 296.73] |
|
| Cp,gas | 17.53 | J/mol×K | 100.12 | Joback Calculated Property |
| Cp,gas | 17.53 | J/mol×K | 100.12 | Joback Calculated Property |
| Cp,gas | 17.53 | J/mol×K | 100.12 | Joback Calculated Property |
| Cp,gas | 17.53 | J/mol×K | 100.12 | Joback Calculated Property |
| Cp,gas | 17.53 | J/mol×K | 100.12 | Joback Calculated Property |
| Cp,gas | 17.53 | J/mol×K | 100.12 | Joback Calculated Property |
| Cp,gas | 40.50 | J/mol×K | 296.73 | Joback Calculated Property |
Similar Compounds
Find more compounds similar to Isocyanic acid.
Sources
- Cheméo Relay (1.0)
- Cheméo Relay (1.0, beta) Beta: served but experimental, data-limited and below our cross-validation release bar; the Joback value is recommended where available.
- Crippen Method
- Crippen Method
- Joback Method
- McGowan Method
- NIST Webbook
Note: Cheméo is only indexing the data, follow the source links to retrieve the latest data. The source is also providing more information like the publication year, authors and more.
Take the time to validate and double check the source of the data.
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