- InChI
- InChI=1S/C6H18O3Si3/c1-10(2)7-11(3,4)9-12(5,6)8-10/h1-6H3
- InChI Key
- HTDJPCNNEPUOOQ-UHFFFAOYSA-N
- Formula
- C6H18O3Si3
- SMILES
-
C[Si]1(C)O[Si](C)(C)O[Si](C)(C
)O1 - Molecular Weight1
- 222.46
- CAS
- 541-05-9
- Other Names
-
- CH7260
- D3 (hexamethylcyclotrisiloxane)
- Dimethylsiloxane cyclic trimer
- Hexamethylcyclotrisiloxane
- Cp,liquid : Liquid phase heat capacity (J/mol×K).
- Cp,solid : Solid phase heat capacity (J/mol×K).
- ΔfusH : Enthalpy of fusion at a given temperature (kJ/mol).
- ΔsubH : Enthalpy of sublimation at a given temperature (kJ/mol).
- 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).
- Inp : Non-polar retention indices.
- S°solid,1 bar : Solid phase molar entropy at standard conditions (J/mol×K).
- Tboil : Normal Boiling Point Temperature (K).
- Tfus : Normal melting (fusion) point (K).
- Ttriple : Triple Point Temperature (K).
- 1: Molecular weight from the IUPAC atomic weights tables.
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Physical Properties
| Property | Value | Unit | Source |
|---|---|---|---|
| log10WS | 4.61 | Crippen Calculated Property | |
| logPoct/wat | 2.155 | Crippen Calculated Property | |
| Inp | [825.00; 833.00] |
|
|
| Inp | 827.00 | NIST | |
| Inp | 833.00 | NIST | |
| Inp | 825.00 | NIST | |
| Inp | 828.00 | NIST | |
| Inp | 829.00 | NIST | |
| Inp | 830.00 | NIST | |
| Inp | 831.00 | NIST | |
| Inp | 831.00 | NIST | |
| Inp | 827.00 | NIST | |
| S°solid,1 bar | 412.10 | J/mol×K | NIST |
| Tboil | 407.00 | K | NIST |
| Tfus | [337.00; 339.50] | K |
|
| Tfus | 337.00 ± 0.10 | K | NIST |
| Tfus | 339.50 ± 0.10 | K | NIST |
| Ttriple | 335.22 ± 0.02 | K | NIST |
Temperature Dependent Properties
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Cp,liquid | [404.50; 433.20] | J/mol×K | [339.90; 404.89] |
|
|
T(K) Liquid phase heat capacity (J/mol×K) 405 410 415 420 425 430 435 340 360 380 400 | ||||
| Cp,liquid | 404.50 | J/mol×K | 339.90 | Selecte... |
| Cp,liquid | 405.90 | J/mol×K | 343.15 | Selecte... |
| Cp,liquid | 406.70 | J/mol×K | 345.03 | Selecte... |
| Cp,liquid | 410.40 | J/mol×K | 353.15 | Selecte... |
| Cp,liquid | 412.30 | J/mol×K | 357.92 | Selecte... |
| Cp,liquid | 413.80 | J/mol×K | 361.20 | Selecte... |
| Cp,liquid | 415.60 | J/mol×K | 365.09 | Selecte... |
| Cp,liquid | 418.10 | J/mol×K | 370.16 | Selecte... |
| Cp,liquid | 420.10 | J/mol×K | 374.79 | Selecte... |
| Cp,liquid | 421.80 | J/mol×K | 379.42 | Selecte... |
| Cp,liquid | 423.60 | J/mol×K | 383.15 | Selecte... |
| Cp,liquid | 425.60 | J/mol×K | 388.06 | Selecte... |
| Cp,liquid | 428.10 | J/mol×K | 393.14 | Selecte... |
| Cp,liquid | 430.00 | J/mol×K | 398.01 | Selecte... |
| Cp,liquid | 431.00 | J/mol×K | 400.00 | Selecte... |
| Cp,liquid | 433.20 | J/mol×K | 404.89 | Selecte... |
| Cp,solid | 360.00 | J/mol×K | 298.15 | NIST |
| ΔfusH | 16.61 | kJ/mol | 335.20 | NIST |
| ΔsubH | 55.20 ± 0.40 | kJ/mol | 316.00 | NIST |
| ΔvapH | [39.00; 40.80] | kJ/mol | [365.50; 380.50] |
|
| ΔvapH | 39.70 | kJ/mol | 365.50 | NIST |
| ΔvapH | 39.00 | kJ/mol | 373.00 | NIST |
| ΔvapH | 39.70 | kJ/mol | 378.00 | NIST |
| ΔvapH | 40.80 | kJ/mol | 380.50 | NIST |
Correlations
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Pvap | [1.33; 202.62] | kPa | [300.99; 435.51] |
The Yaw...
|
| Equation | ln(Pvp) = A + B/(T + C) | |||
| Coefficient A | 1.38637e+01 | |||
| Coefficient B | -3.10902e+03 | |||
| Coefficient C | -7.19820e+01 | |||
| Temperature range, min. | 300.99 | |||
| Temperature range, max. | 435.51 | |||
|
T(K) Vapor pressure (kPa) 0 50 100 150 200 300 350 400 | ||||
| Pvap | 1.33 | kPa | 300.99 | Calculated Property |
| Pvap | 3.06 | kPa | 315.94 | Calculated Property |
| Pvap | 6.39 | kPa | 330.88 | Calculated Property |
| Pvap | 12.31 | kPa | 345.83 | Calculated Property |
| Pvap | 22.16 | kPa | 360.78 | Calculated Property |
| Pvap | 37.64 | kPa | 375.72 | Calculated Property |
| Pvap | 60.83 | kPa | 390.67 | Calculated Property |
| Pvap | 94.17 | kPa | 405.62 | Calculated Property |
| Pvap | 140.42 | kPa | 420.56 | Calculated Property |
| Pvap | 202.62 | kPa | 435.51 | Calculated Property |
Similar Compounds
Find more compounds similar to Cyclotrisiloxane, hexamethyl-.
Sources
- Crippen Method
- Crippen Method
- Selected Physicochemical Properties of Hexamethylcyclotrisiloxane, Octamethylcyclotetrasiloxane, and Decamethylcyclopentasiloxane
- NIST Webbook
- The Yaws Handbook of Vapor Pressure
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