Isotherm Of Medicinal Plants
Abstract
The sorption and desorption of medicinal plants was carried out on a vacuum installation with mercury
gates and McBan quartz scales. The measurements were carried out at 293 K and a residual air
pressure of 10-3-10-4 Pa. We studied the sorption and desorption of water vapor at 293 K for medicinal
forestry plants - peppermint (Mentha), nettle (Urtica), plantain (Plantago) and zizifora (Ziziphora).
The characteristics of the processes of sorption and desorption of medicinal plants were studied: it was
found that the specific surface area of the capillaries is 137.26 m2/g, and the total pore volume for
zisphora under convective drying is 0.095 cm3/g. For plantain, the characteristics of sorption and
desorption were revealed: the confirmed specific surface of the capillaries is 92.10 m2/g, while the total
pore volume is 0.250 cm3/g