Environmentally friendly complexones. The thermodynamic characteristics of the formation of Al3+ Ion complexes with ethylenediaminedisuccinic acid in aqueous solutions
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TOLKACHEVA, L., SAPRUNOVA, T., NIKOLSKII, V., IAKOVLEV, A.. Environmentally friendly complexones. The thermodynamic characteristics of the formation of Al3+ Ion complexes with ethylenediaminedisuccinic acid in aqueous solutions . In: Chemistry Journal of Moldova, 2012, nr. 1(7), pp. 70-73. ISSN 1857-1727.
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Chemistry Journal of Moldova
Numărul 1(7) / 2012 / ISSN 1857-1727 /ISSNe 2345-1688

Environmentally friendly complexones. The thermodynamic characteristics of the formation of Al3+ Ion complexes with ethylenediaminedisuccinic acid in aqueous solutions

Pag. 70-73

Tolkacheva L., Saprunova T., Nikolskii V., Iakovlev A.
 
 
Disponibil în IBN: 8 decembrie 2013


Rezumat

Complex formation between Al3 and ethylenediamine - N,N`-disuccinic acid (H4L) was studied at 25°C against the background of 0.1, 0.5, 1.0 N solutions of KNO3 by potentiometry and mathematical modeling. The extrapolation of concentration constants to zero ionic strength was used to calculate the thermodynamic constants of the formation of the AlL–, AlHL complexes using an equation with one individual parameter (logβ0 = 16.27 ± 0.07, 9.19 ± 0.2 respectively).

Cuvinte-cheie
aluminum,

ethylenediaminedisuccinic acid, derivatives of ethylenediaminedisuccinic acid, complex formation, complexones