7Li, 23 Na, 39 K and 133 Cs NMR spectrometric comparative study of 0.05 M alkali metal chloride hydrolysis in aqueous solutions 3.4MMe 4 NCl/Me 4 NOH at 25 o C is performed. It is found that chemical shifts of all nuclei involved are sensitive to variations of ionic strength and pH. Stability constants for Li + , Na + , K + and Cs + lgK(M+OH MOH) are found to be -0.04 (0.05), -0.93 (0.04), -0.7 (0.2) and -0.8 (0.1), respectively. The stability of CsOH is estimated to be the same as that of NaOH and KOH within an experimental error. No evidence of chloro-complexes formation was found.
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