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Prof. Mahmoud Ahmed Mohamed Mousa :: Publications: |
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| Title: | Solvolysis rates and activation parameters of phenylchloroformate in water-tetrahydrofuran and water-dioxane mixed solvents |
| Authors: | • Mahmoud Mousa, El-Hussieny M. Diefallah, Hassan A. Dessouki, Shokar T. Atwa |
| Year: | 1989 |
| Keywords: | Science |
| Journal: | Thermochimica Acta |
| Volume: | 141 |
| Issue: | Not Available |
| Pages: | 1-8 |
| Publisher: | Elsevier |
| Local/International: | International |
| Paper Link: | Not Available |
| Full paper | Mahmoud Ahmed Mohamed Mousa_Solvolysis rates and activation parameters of phenylchloroformate in water-tetrahydrofuran and water-dioxane mixed solvents - ScienceDirect.html |
| Supplementary materials | Not Available |
| Abstract: |
Abstract The rates of hydrolysis of phenylchloroformate were measured over the temperature range 30–55 °C in water-tetrahydrofuran and water-dioxane mixtures of different compositions. The influence of solvent variation on reaction rate was examined in terms of changes in the activation parameters. The activation parameters ΔH★ and ΔS★ for the solvolysis reaction showed minima at a water mole fraction of about 0.5 in water-tetrahydrofuran solvent mixtures, whereas these parameters increased continuously with increasing concentration of water in water-dioxane solvent mixtures. The results are discussed in terms of the polarity of the medium and the change in the solvent structure. |
