STUDY OF OBTAINING COMPLEX COMPOUNDS WITH PHYSIOLOGICAL ACTIVITY BASED ON SALICYLIC ACID AND DALOMITE.

Background. Salicylic acid has antiseptic properties, it is used in the preparation of antibacterial drugs. Its derivatives are also used in agriculture as physiologically active substances. Purpose. Study of the process of synthesis of complex salts of calcium and magnesium with physiologically active properties based on local raw materials "Shorsu" dolomite and salicylic acid. Methodology. Calcium and magnesium in solution were determined by complexometric titration. The pH of the medium was controlled (pH meter Fe 20 METTLER TOLEDO). The IR spectra of calcium and magnesium salts of salicylic acid were studied (Perkin Elmer Spectrum IR version 10.7.2). Originality. In the synthesis of a complex compound based on Shorsu dolomite and salicylic acid, the optimal ratio of components, temperature, pH of solutions, process duration and foaming height were determined. Findings. Since salicylic acid is poorly soluble in water, a solvent based on ethanol and water (1:2) was used. Salicylic acid and dolomite (degree of grinding. δsr=10 μm) were mixed in the ratio, M/M = 1:0.1, 1:0.25, 1:0.5, 1:0.75 at a temperature of: 25-90°C. Changes in pH were observed and optimal synthesis conditions were determined. [ABSTRACT FROM AUTHOR]