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With acid–base indicators, the change in the functional composition of surface of calcite, fluorite and scheelite under the action of high-voltage nanosecond pulses has been analyzed. After impulse treatment of mineral samples for ttreat ≤ 50 s, the concentration of electron–donor Lewis (рКа =–4.4) and proton-donor (рКа = 1.3, рКа = 4.1) Brønsted centers has grown on the surface of calcite...
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