Kinetics of the monoethanolamine vapor adsorption on the surface of silica previously deposited onto quartz plate was examined
by the piezoelectric microweighing. With the assumptions which are in accord with the experimental data, the kinetic equation
of the process was obtained and thus the adsorption and desorption constants were found. The structure of the possible adsorption
complexes was studied in the framework of the quantum-chemical MNDO method and the conclusion was made that the two-center
adsorption of the monoethanolamine on the silica surface proceeds as a two-stage process with the participation of both functional
groups. The bonding is mainly effected owing to the proton-acceptor properties of amine groups.