NEW STUDIES OF EVAPORATION RATE DETERMINATION FOR ALCOHOL IN BUBBLERS

In experiments involving vapour detection, bubblers are often used in order to feed the various substances in the measuring chamber and it's it is of particular importance to estimate the exact quantity of analyte that reach the sensor under test. We must in fact consider, than beyond the phenomenon of the free evaporation, also the mechanical transport due to the gas flow that gives place to such a kinda of aerosol.Our studies have been focused on alcohol vapours and in particular on water, ter-butanol, n-butanol, n-propanol, decane, methanol, ethanol and hexane. We evaluated the behaviour of a particular substance either, by varying temperature and keeping a steady gas flow rate , or keeping the temperature at a constant value and varying the flow rate.