Speciation Study on the Interaction of Some Divalent Transition Metal Ions with Succinic acid Dihydrazide in Aqueous Medium

Authors

  • Atreyapurapu Satyanarayana Department of Physical and Nuclear Chemistry and Chemical Oceanography, Andhra University, Visakhapatnam -530003, India
  • Dunkana Negussa Kenie Department of Physical and Nuclear Chemistry and Chemical Oceanography, Andhra University, Visakhapatnam -530003, India
  • Pulipaka Shyamala Department of Physical and Nuclear Chemistry and Chemical Oceanography, Andhra University, Visakhapatnam -530003, India

Keywords:

Formation constant, speciation, succinic acid dihydrazide, metal complexes

Abstract

The interaction of succinic acid dihydrazide with Mn(II), Co(II), Ni(II), Cu(II) and Zn(II) was investigated in aqueous medium at 303K and ionic strength of 0.1 mol dm–3. The speciation and stability constants of the metal complexes formed were determined by pH-metric method. Mononuclear and homo binuclear species in different protonation and deprotonation states were identified, the corresponding formation constants calculated using MINIQUAD-75 computer program, and species distribution diagrams produced using the HYSS computer program. Selection of the best-fit chemical models was based on statistical parameters.

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Published

13.01.2014

Issue

Vol. 60 No. 4 (2013)

Section

Physical chemistry

License

Except where otherwise noted, articles in this journal are published under the Creative Commons Attribution 4.0 International License