- InChI
- InChI=1S/C6H8S/c1-5-3-7-4-6(5)2/h3-4H,1-2H3
- InChI Key
- GPSFYJDZKSRMKZ-UHFFFAOYSA-N
- Formula
- C6H8S
- SMILES
- Cc1cscc1C
- Molecular Weight1
- 112.19
- CAS
- 632-15-5
- Other Names
-
- 3,4-Dimethylthiophene
- ω : Acentric Factor.
- ΔfG° : Standard Gibbs free energy of formation (kJ/mol).
- ΔfH°gas : Enthalpy of formation at standard conditions (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.
- McVol : McGowan's characteristic volume (ml/mol).
- Pc : Critical Pressure (kPa).
- Pvap : Vapor pressure (kPa).
- ρl : Liquid Density (kg/m3).
- Inp : Non-polar retention indices.
- I : Polar retention indices.
- 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 | 0.3000 | Relay (1.0) Calculated Property | |
| ΔfG° | 121.55 | kJ/mol | Relay (1.0-beta) Calculated Property |
| ΔfH°gas | 44.57 | kJ/mol | Relay (1.0) Calculated Property |
| ΔvapH° | 43.74 | kJ/mol | Relay (1.0) Calculated Property |
| IE | 8.55 | eV | NIST |
| log10WS | -3.00 | Relay (1.0) Calculated Property | |
| logPoct/wat | 2.365 | Crippen Calculated Property | |
| McVol | 92.290 | ml/mol | McGowan Calculated Property |
| Pc | 3908.00 | kPa | KDB |
| Inp | [867.00; 908.10] |
|
|
| Inp | 890.00 | NIST | |
| Inp | 887.00 | NIST | |
| Inp | 883.50 | NIST | |
| Inp | 885.00 | NIST | |
| Inp | 898.00 | NIST | |
| Inp | 888.00 | NIST | |
| Inp | 887.00 | NIST | |
| Inp | Outlier 908.10 | NIST | |
| Inp | 889.00 | NIST | |
| Inp | 882.00 | NIST | |
| Inp | Outlier 867.00 | NIST | |
| Inp | 888.00 | NIST | |
| Inp | 882.00 | NIST | |
| Inp | 883.00 | NIST | |
| Inp | 882.00 | NIST | |
| Inp | 883.00 | NIST | |
| Inp | 889.00 | NIST | |
| Inp | 888.00 | NIST | |
| Inp | 881.00 | NIST | |
| Inp | 881.00 | NIST | |
| Inp | 885.00 | NIST | |
| Inp | 890.00 | NIST | |
| Inp | 888.00 | NIST | |
| Inp | 889.00 | NIST | |
| Inp | 883.00 | NIST | |
| Inp | Outlier 908.10 | NIST | |
| I | [1240.00; 1253.00] |
|
|
| I | 1250.00 | NIST | |
| I | 1253.00 | NIST | |
| I | 1253.00 | NIST | |
| I | 1253.00 | NIST | |
| I | 1240.00 | NIST | |
| Tboil | [418.20; 418.20] | K |
|
| Tboil | 418.20 | K | KDB |
| Tboil | 418.20 | K | NIST |
| Tc | 640.20 | K | KDB |
| Tfus | 249.39 | K | Relay (1.0) Calculated Property |
| Vc | 0.326 | m3/kmol | Relay (1.0) Calculated Property |
Temperature Dependent Properties
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| ΔvapH | 41.10 | kJ/mol | 403.00 | NIST |
| ρl | 1009.70 | kg/m3 | 293.10 | KDB |
Correlations
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Pvap | [1.33; 202.67] | kPa | [307.42; 445.93] |
The Yaws Handbook of Vapor Pressure
|
| Equation | ln(Pvp) = A + B/(T + C) | |||
| Coefficient A | 1.42237e+01 | |||
| Coefficient B | -3.42431e+03 | |||
| Coefficient C | -6.17000e+01 | |||
| Temperature range, min. | 307.42 | |||
| Temperature range, max. | 445.93 | |||
| Pvap | 1.33 | kPa | 307.42 | Calculated Property |
| Pvap | 3.03 | kPa | 322.81 | Calculated Property |
| Pvap | 6.29 | kPa | 338.20 | Calculated Property |
| Pvap | 12.09 | kPa | 353.59 | Calculated Property |
| Pvap | 21.75 | kPa | 368.98 | Calculated Property |
| Pvap | 37.01 | kPa | 384.37 | Calculated Property |
| Pvap | 60.00 | kPa | 399.76 | Calculated Property |
| Pvap | 93.27 | kPa | 415.15 | Calculated Property |
| Pvap | 139.73 | kPa | 430.54 | Calculated Property |
| Pvap | 202.67 | kPa | 445.93 | Calculated Property |
| Pvap | [4.40; 392.51] | kPa | [328.15; 478.15] |
KDB Vapor Pressure Data
|
| Equation | ln(Pvp) = A + B/T + C*ln(T) + D*T^2 | |||
| Coefficient A | 8.23984e+01 | |||
| Coefficient B | -7.87240e+03 | |||
| Coefficient C | -9.93415e+00 | |||
| Coefficient D | 5.82356e-06 | |||
| Temperature range, min. | 328.15 | |||
| Temperature range, max. | 478.15 | |||
| Pvap | 4.40 | kPa | 328.15 | Calculated Property |
| Pvap | 9.16 | kPa | 344.82 | Calculated Property |
| Pvap | 17.58 | kPa | 361.48 | Calculated Property |
| Pvap | 31.53 | kPa | 378.15 | Calculated Property |
| Pvap | 53.32 | kPa | 394.82 | Calculated Property |
| Pvap | 85.75 | kPa | 411.48 | Calculated Property |
| Pvap | 132.05 | kPa | 428.15 | Calculated Property |
| Pvap | 195.88 | kPa | 444.82 | Calculated Property |
| Pvap | 281.24 | kPa | 461.48 | Calculated Property |
| Pvap | 392.51 | kPa | 478.15 | Calculated Property |
Similar Compounds
Find more compounds similar to Thiophene, 3,4-dimethyl-.
Sources
- KDB Vapor Pressure Data
- 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
- KDB
- McGowan Method
- 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.
Take the time to validate and double check the source of the data.
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