- InChI
- InChI=1S/OS2/c1-3-2
- InChI Key
- TXKMVPPZCYKFAC-UHFFFAOYSA-N
- Formula
- OS2
- SMILES
- O=S=S
- Molecular Weight1
- 80.13
- CAS
- 20901-21-7
- Cp,gas : Ideal gas heat capacity (J/mol×K).
- EA : Electron affinity (eV).
- 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 |
|---|---|---|---|
| EA | 1.88 ± 0.01 | eV | NIST |
| ΔfG° | -130.71 | kJ/mol | Joback Calculated Property |
| ΔfH°gas | -95.58 | kJ/mol | Joback Calculated Property |
| ΔfusH° | 11.00 | kJ/mol | Joback Calculated Property |
| ΔvapH° | 34.84 | kJ/mol | Joback Calculated Property |
| IE | [10.30; 10.62] | eV |
|
| IE | 10.58 ± 0.01 | eV | NIST |
| IE | 10.58 ± 0.01 | eV | NIST |
| IE | 10.58 ± 0.01 | eV | NIST |
| IE | 10.53 ± 0.02 | eV | NIST |
| IE | 10.52 | eV | NIST |
| IE | 10.62 | eV | NIST |
| IE | Outlier 10.30 ± 0.10 | eV | NIST |
| IE | 10.52 | eV | NIST |
| log10WS | 1.23 | Crippen Calculated Property | |
| logPoct/wat | -0.339 | Crippen Calculated Property | |
| McVol | 45.130 | ml/mol | McGowan Calculated Property |
| Pc | 9481.11 | kPa | Joback Calculated Property |
| Tboil | 325.06 | K | Joback Calculated Property |
| Tc | 524.87 | K | Joback Calculated Property |
| Tfus | 193.38 | K | Joback Calculated Property |
| Vc | 0.162 | m3/kmol | Joback Calculated Property |
Temperature Dependent Properties
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Cp,gas | [52.17; 59.87] | J/mol×K | [325.06; 524.87] |
|
| Cp,gas | 52.17 | J/mol×K | 325.06 | Joback Calculated Property |
| Cp,gas | 54.21 | J/mol×K | 358.36 | Joback Calculated Property |
| Cp,gas | 55.91 | J/mol×K | 391.66 | Joback Calculated Property |
| Cp,gas | 57.30 | J/mol×K | 424.97 | Joback Calculated Property |
| Cp,gas | 58.40 | J/mol×K | 458.27 | Joback Calculated Property |
| Cp,gas | 59.25 | J/mol×K | 491.57 | Joback Calculated Property |
| Cp,gas | 59.87 | J/mol×K | 524.87 | Joback Calculated Property |
Similar Compounds
Find more compounds similar to Disulfur monoxide.
Sources
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Outlier This icon means
that the value is more than 2 standard deviations away from the
property mean.