Densities, Viscosities, and Thermal Conductivities of the Ionic Liquid 7-Methyl-1,5,7-triazabicyclo[4.4.0]dec-5-enium Acetate and Its Mixtures with Water
| Autor: | Daniel Cederkrantz, Zachariah Steven Baird, Artur Dahlberg, Petri Uusi-Kyyny, Ville Alopaeus |
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| Přispěvatelé: | Department of Chemical and Metallurgical Engineering, Thermtest Europe AB, Aalto-yliopisto, Aalto University |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Aqueous solution
Viscosity Analytical chemistry Density 02 engineering and technology Ionic liquid 021001 nanoscience & nanotechnology Condensed Matter Physics chemistry.chemical_compound Acetic acid Thermal conductivity 020401 chemical engineering chemistry 7-Methyl-1 5 7-triazabicyclo[4.4.0]dec-5-enium acetate ePC-SAFT mTBD Maximum density Acid–base reaction 0204 chemical engineering Cellulose 0210 nano-technology |
| Popis: | 7-Methyl-1,5,7-triazabicyclo[4.4.0]dec-5-enium acetate (mTBD acetate) is a protic ionic liquid that is being investigated for use in industrial processes, such as for producing textiles from cellulose. To aid in designing such processes, we have measured the densities, viscosities, and thermal conductivities of mTBD acetate and aqueous mixtures containing mTBD acetate. We also investigated how excess amounts of mTBD or acetic acid affect the density, and found that in general an excess of either component decreases the density. However, when no water is present, the sample with excess acetic acid actually has a slightly higher density than when there is an equimolar amount of acid and base. The maximum density occurs when some water is present (around 30–40 mol%). We also modeled the density data using the ePC-SAFT equation of state and provide simple correlations for calculating the viscosity and thermal conductivity of these mixtures. |
| Databáze: | OpenAIRE |
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