Abstract
The acidity of donor-acceptor complexes of boric acid with glycerol and sorbitol has been studied in aqueous solutions using pH-metry and electrical conductivity methods. A theoretical model of donor-acceptor acid-base equilibria in boric acid – polyol – water systems has been created. The constants of polyol boric acids formation and ionization were determined. The constants of glycerol and sorbitol boric acids formation were 0.05 and 0.06 l2·mol−2, and those of glycerol and sorbitol boric acids ionization were 7.1·10−6 mol·l−1 and 3.2 · 10−3 mol·l−1, respectively. The systems studied were used to create new oil-displacing compositions for enhanced oil recovery.
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