- InChI
- InChI=1S/C20H60O8Si9/c1-29(2,3)21-31(7,8)23-33(11,12)25-35(15,16)27-37(19,20)28-36(17,18)26-34(13,14)24-32(9,10)22-30(4,5)6/h1-20H3
- InChI Key
- XVNZQBSRKFXKSM-UHFFFAOYSA-N
- Formula
- C20H60O8Si9
- SMILES
-
C[Si](C)(C)O[Si](C)(C)O[Si](C)
(C)O[Si](C)(C)O[Si](C)(C)O[Si] (C)(C)O[Si](C)(C)O[Si](C)(C)O[ Si](C)(C)C - Molecular Weight1
- 681.46
- CAS
- 2652-13-3
- Other Names
-
- 1,1,1,3,3,5,5,7,7,9,9,11,11,13,13,15,15,17,17,17-eicosamethylnonasiloxane
- icosamethylnonasiloxane
- ΔvapH : Enthalpy of vaporization at a given temperature (kJ/mol).
- IE : Ionization energy (eV).
- logPoct/wat : Octanol/Water partition coefficient.
- Pvap : Vapor pressure (kPa).
- Tboil : Normal Boiling Point Temperature (K).
- Tc : Critical Temperature (K).
- 1: Molecular weight from the IUPAC atomic weights tables.
Physical Properties
| Property | Value | Unit | Source |
|---|---|---|---|
| IE | 10.38 | eV | Relay (1.0) Calculated Property |
| logPoct/wat | 7.702 | Crippen Calculated Property | |
| Tboil | 579.29 | K | Relay (1.0) Calculated Property |
| Tc | 680.03 | K | Relay (1.0) Calculated Property |
Cheméo can also estimate Normal melting (fusion) point, Critical Volume, Enthalpy of formation at standard conditions, Enthalpy of vaporization at standard conditions, Standard Gibbs free energy of formation, Acentric Factor, 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
Correlations
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Pvap | [1.33; 202.65] | kPa | [462.22; 606.43] |
The Yaws Handbook of Vapor Pressure
|
| Equation | ln(Pvp) = A + B/(T + C) | |||
| Coefficient A | 1.92650e+01 | |||
| Coefficient B | -7.60095e+03 | |||
| Coefficient C | -6.16940e+01 | |||
| Temperature range, min. | 462.22 | |||
| Temperature range, max. | 606.43 | |||
| Pvap | 1.33 | kPa | 462.22 | Calculated Property |
| Pvap | 2.77 | kPa | 478.24 | Calculated Property |
| Pvap | 5.44 | kPa | 494.27 | Calculated Property |
| Pvap | 10.19 | kPa | 510.29 | Calculated Property |
| Pvap | 18.27 | kPa | 526.31 | Calculated Property |
| Pvap | 31.53 | kPa | 542.34 | Calculated Property |
| Pvap | 52.51 | kPa | 558.36 | Calculated Property |
| Pvap | 84.72 | kPa | 574.38 | Calculated Property |
| Pvap | 132.77 | kPa | 590.41 | Calculated Property |
| Pvap | 202.65 | kPa | 606.43 | Calculated Property |
Similar Compounds
Find more compounds similar to Eicosamethylnonasiloxane.
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
- Temperature-Dependent Vapor Pressure of Selected Cyclic and Linear Polydimethylsiloxane Oligomers
- NIST Webbook
- The Yaws Handbook of Vapor Pressure
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.
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