- 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).
- log10WS : Log10 of Water solubility in mol/l.
- logPoct/wat : Octanol/Water partition coefficient.
- Pvap : Vapor pressure (kPa).
- 1: Molecular weight from the IUPAC atomic weights tables.
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Physical Properties
| Property | Value | Unit | Source |
|---|---|---|---|
| log10WS | 12.57 | Crippen Calculated Property | |
| logPoct/wat | 7.702 | Crippen Calculated Property |
Temperature Dependent Properties
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| ΔvapH | 85.90 | kJ/mol | 499.00 | NIST |
| Pvap | [4.16e-04; 0.53] | kPa | [348.15; 438.15] | 
|
| Pvap | 4.16e-04 | kPa | 348.15 | Tempera... |
| Pvap | 1.10e-03 | kPa | 358.15 | Tempera... |
| Pvap | 2.75e-03 | kPa | 368.15 | Tempera... |
| Pvap | 6.57e-03 | kPa | 378.15 | Tempera... |
| Pvap | 0.01 | kPa | 388.15 | Tempera... |
| Pvap | 0.03 | kPa | 398.15 | Tempera... |
| Pvap | 0.07 | kPa | 408.15 | Tempera... |
| Pvap | 0.14 | kPa | 418.15 | Tempera... |
| Pvap | 0.28 | kPa | 428.15 | Tempera... |
| Pvap | 0.53 | kPa | 438.15 | Tempera... |
Correlations
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Pvap | [1.33; 202.65] | kPa | [462.22; 606.43] |
The Yaw...
|
| 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
- Crippen Method
- Crippen Method
- Temperature-Dependent Vapor Pressure of Selected Cyclic and Linear Polydimethylsiloxane Oligomers
- NIST Webbook
- The Yaws Handbook of Vapor Pressure
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