Abstract The rate of proton exchange between ethanol and water in gasoline-ethanol blends is catalyzed by acids, and can be used to monitor the acidity of the blends. The exchange… Click to show full abstract
Abstract The rate of proton exchange between ethanol and water in gasoline-ethanol blends is catalyzed by acids, and can be used to monitor the acidity of the blends. The exchange rate can be measured from the water linewidth in a simple single-pulse proton NMR spectrum.
               
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