Abstract
Abstract The hydrolysis of Be2+ ion in heavy water containing 3m NaClO4 as an ionic medium was investigated at 25°C by potentiometric titrations, employing a technique of constant-current coulometry. The deuterium-ion concentrations was measured by the use of a commercial glass electrode. The emf data in the range of the total beryllium concentration from 2.5 to 10 mm can be explained on the basis of the following complex formation: Be2(OD)3+, −logβ1,2=3.28±0.04; Be3(OD)33+, −logβ3,3=9.399±0.007; Be(OD)2, −logβ2,1=11.89±0.07. The composition of the species formed in heavy water is the same as that in light water, but the values of the stability constants are smaller in heavy water than in light water.
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