Thermochemical study of the complex formation of mercury(II) with nitrilotriacetic acid in an aqueous solution |
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Authors: | D F Pyreu E V Kozlovskii |
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Institution: | (1) Ivanovo State University, Ivanovo, Russia |
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Abstract: | The formation constant of the Hg(Nta) 2 4? complex, where Nta3? is the nitrilotriacetate ion, is determined by pH-metric titration at 298.15 K and ionic strength I = 0.5 (KNO3) (logβ = 21.49 ± 0.10). The thermal effects for the formation of the Hg(NTa) i2?3i complexes (i = 1, 2) are determined by a direct calorimetric method (?56.69 ± 1.04 and ?85.88 ± 1.32 kJ/mol for i = 1 and 2, respectively). |
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