Effect of micelles on the chemical speciation of binary complexes of Co(II), Nii(II), Cu(II) and Zn(II) with succinic acid | Zendy

Srikanth Bathula | Zendy; Srinivasa Rao | Zendy; S. L. Narasimha Rao | Zendy; Kamala Sastry | Zendy; N. Venkateswara Rao | Zendy

Open Access

Effect of micelles on the chemical speciation of binary complexes of Co(II), Nii(II), Cu(II) and Zn(II) with succinic acid

Author(s) -

Srikanth Bathula,

Srinivasa Rao,

S. L. Narasimha Rao,

Kamala Sastry,

N. Venkateswara Rao

Publication year - 2009

Publication title -

journal of the serbian chemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.227

H-Index - 45

eISSN - 1820-7421

pISSN - 0352-5139

DOI - 10.2298/jsc0907745s

Subject(s) - chemistry , ionic strength , micelle , cationic polymerization , succinic acid , genetic algorithm , ionic bonding , mole fraction , inorganic chemistry , ion , polymer chemistry , organic chemistry , aqueous solution , evolutionary biology , biology

Speciation of Co(II), Ni(II), Cu(II) and Zn(II) complexes with succi- nic acid in the presence of anionic, cationic and non-ionic surfactants at an ion- ic strength of 0.16 mol dm -3 and temperature 303 K were investigated pH me- trically. The existence of different binary complex species was established from modelling studies using the computer program MINIQUAD75. The decreased stability of the complexes with increasing micellar content was explained by electrostatic forces. The influence of the micelles on the chemical speciation is discussed based on the mole fraction of the medium. Distribution diagrams of various species of the complexes in relation to pH are presented.

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