ISOTHERMAL SOLUBILITY DIAGRAM OF THE SODIUM HYDROXIDE – HUMIC ACID – WATER SYSTEM AT 25˚C
Authors
Erkaev Aktam Ulashevich, Yulbarsova Mashkhurakhon Vakhobovna, Yunusova Maftuna Valijon qizi, Babasadikov Shukrullo Sayfulloyevich, Kucharov Bakhrom Khayrievich, Zakirov Bakhtiyor Sabirjanovich
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Annotation
The article presents data from a study of solubility in the sodium hydroxide – humic acid – water system at 250C isothermal method and data from a study of the rheological properties of solutions formed by adding humic acid to 0.5 and 1.0% aqueous solutions of sodium hydroxide. The formation of a new compounds based on the initial components, for which the concentration limits of existence at 25°C have been determined. By studying the rheological properties of solutions formed by adding humic acid to 0.5 and 1.0% aqueous solutions of sodium hydroxide, we have established that when sodium hydroxide interacts with humic acid in aqueous solutions, a complex compound of the composition NaOH•НА (1:1) is formed. These characteristic inflection points are less clearly manifested in the pH values of the solutions.
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Authors
Erkaev Aktam Ulashevich, Yulbarsova Mashkhurakhon Vakhobovna, Yunusova Maftuna Valijon qizi, Babasadikov Shukrullo Sayfulloyevich, Kucharov Bakhrom Khayrievich, Zakirov Bakhtiyor Sabirjanovich
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