- InChI
- InChI=1S/C6H18Si2/c1-7(2,3)8(4,5)6/h1-6H3
- InChI Key
- NEXSMEBSBIABKL-UHFFFAOYSA-N
- Formula
- C6H18Si2
- SMILES
- C[Si](C)(C)[Si](C)(C)C
- Molecular Weight1
- 146.38
- CAS
- 1450-14-2
- Other Names
-
- Hexamethyldisilane
- (CH3)6Si2
- Permethyldisilane
- CH7280
- ω : Acentric Factor.
- Cp,liquid : Liquid phase 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 a given temperature (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.
- Pc : Critical Pressure (kPa).
- Inp : Non-polar retention indices.
- ΔfusS : Entropy of fusion at a given temperature (J/mol×K).
- 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 | 0.2482 | Relay (... Calculated Property | |
| ΔfG° | 37.22 | kJ/mol | Relay (... Calculated Property ⚠️ |
| ΔfH°gas | -372.70 | kJ/mol | Relay (... Calculated Property |
| ΔvapH° | 37.86 | kJ/mol | Relay (... Calculated Property |
| IE | [8.00; 8.79] | eV |
|
| IE | 8.27 ± 0.05 | eV | NIST |
| IE | 8.27 ± 0.05 | eV | NIST |
| IE | 8.27 ± 0.05 | eV | NIST |
| IE | 8.40 | eV | NIST |
| IE | 8.00 | eV | NIST |
| IE | 8.35 ± 0.12 | eV | NIST |
| IE | 8.46 ± 0.15 | eV | NIST |
| IE | 8.00 ± 0.01 | eV | NIST |
| IE | 8.35 ± 0.12 | eV | NIST |
| IE | 8.79 ± 0.08 | eV | NIST |
| IE | 8.68 | eV | NIST |
| IE | 8.70 ± 0.05 | eV | NIST |
| IE | 8.69 | eV | NIST |
| IE | 8.69 | eV | NIST |
| log10WS | -2.83 | Relay (... Calculated Property | |
| logPoct/wat | 2.741 | Crippen Calculated Property | |
| Pc | 2504.68 | kPa | Relay (... Calculated Property ⚠️ |
| Inp | [685.90; 699.00] |
|
|
| Inp | 686.10 | NIST | |
| Inp | 685.90 | NIST | |
| Inp | 698.00 | NIST | |
| Inp | 699.00 | NIST | |
| Inp | 686.10 | NIST | |
| Inp | 698.00 | NIST | |
| Tboil | [386.00; 386.00] | K |
|
| Tboil | 386.00 | K | NIST |
| Tboil | 386.00 | K | NIST |
| Tc | 571.50 | K | Relay (... Calculated Property |
| Tfus | [287.10; 287.70] | K |
|
| Tfus | 287.10 ± 0.10 | K | NIST |
| Tfus | 287.22 ± 0.05 | K | NIST |
| Tfus | 287.70 ± 0.20 | K | NIST |
| Vc | 0.538 | m3/kmol | Relay (... Calculated Property |
Temperature Dependent Properties
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Cp,liquid | 255.89 | J/mol×K | 295.67 | NIST |
| ΔfusH | [3.02; 9.75] | kJ/mol | [221.80; 287.70] |
|
| ΔfusH | 9.75 | kJ/mol | 221.80 | NIST |
| ΔfusH | 3.02 | kJ/mol | 287.70 | NIST |
| ΔfusH | 3.02 | kJ/mol | 287.70 | NIST |
| ΔvapH | [36.30; 37.20] | kJ/mol | [299.00; 346.00] |
|
| ΔvapH | 37.20 | kJ/mol | 299.00 | NIST |
| ΔvapH | 36.80 | kJ/mol | 314.00 | NIST |
| ΔvapH | 36.30 | kJ/mol | 346.00 | NIST |
| ΔfusS | [10.49; 43.95] | J/mol×K | [221.80; 287.70] |
|
| ΔfusS | 43.95 | J/mol×K | 221.80 | NIST |
| ΔfusS | 10.49 | J/mol×K | 287.70 | NIST |
Similar Compounds
Find more compounds similar to Disilane, hexamethyl-.
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
- NIST Webbook
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