Chemical speciation of binary complexes of L-valine with Co(II), Ni(II) and Cu(II) in propylene glycol-water mixtures
2013
Bhushanavathi, Peketi | Veeraswami, Boddu | Viplavaprasad, Uppuleti | Nageswara Rao, Gollapalli
Chemical speciation of Co(II), Ni(II) and Cu(II) complexes of L-valine in 0.0-60.0% v/v propylene glycol-water mixtures at an ionic strength of 0.16 mol L⁻¹ and 303.0 K was studied pH-metrically. Models containing different number of species were refined by using the computer program MINIQUAD75. The number of species in the models was chosen based on exhaustive modelling. The best-fit chemical models were arrived at based on statistical parameters. The formation and distribution of different species with varying pH were represented in the form of distribution diagrams. Influence of the solvent on the speciation was discussed based on the dielectric constant of the medium.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
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