A research of chemical nature and surface properties of plant disperse fillers

Acid-Alkaline Surface Properties of Powders: Potentiometric Research Methods

“…All methods can be divided into two groups: in some, the isoadsorption state is evaluated by the pH values of the suspensions, in others, by the pH of the filtrates of the suspensions. From the first group, the Nechyporenko method (direct potentiometry) and the Parks-Bobyrenko method (potentiometric titration) are the most important [4].…”

Potentiometric (pH-Metric) Methods of Studying Acid-Base Properties on the Surface of Dispersed Materials

“…The nature and acid-base properties of ACA have been most thoroughly studied for dispersed crystalline materials of an inorganic nature, which is related to the more or less known chemical composition and crystal structure [6][7][8]. The complexity of studying the surface of dispersed inorganic materials of an amorphous structure or materials of organic origin is caused by the need to identify a surface with a complex chemical structure and unstable composition [18,19]. The characteristics of the constituents of such materials -density, molecular weight, molecular and supramolecular structure, decomposition temperature, solubility in solvents, heat capacity -have a very wide range.…”