Abstract—
The mass spectra of negative ions of aqueous solutions of completely neutralized monochloroacetic acid (MCA), dichloroacetic acid (DCA), and trichloroacetic acid (TCA) with a concentration of 0.01 mol/L at 20°C are obtained by the mass spectrographic method of electrospraying electrolyte solutions in vacuum. In all the distributions according to the degree of hydration of the acid residue, the dependence of the ion current intensity on the number of water molecules in the ion current is found. At an acid concentration of 0.01 mol/L, the number of hydrated monochloroacetic and dichloroacetic ions decreases monotonically with the increasing degree of hydration. For a TCA solution, the ion current intensity reaches the maximum of the distribution for two water molecules in the ion.
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This work was supported by grant no. 19-05-50076, Microworld, from the Russian Foundation for Basic Research and state assignment no. АААА-А20-120021390044-2 of the Russian Federation.
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Translated by M. Drozdova
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Vasiliev, E.S., Karpov, G.V., Volkov, N.D. et al. Common Processes of the Hydration of Chloroacetic Acids. Russ. J. Phys. Chem. B 15, 228–232 (2021). https://doi.org/10.1134/S1990793120060305
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DOI: https://doi.org/10.1134/S1990793120060305