alexa Abstract | Chemical speciation studies of binary complexes of malonic acid with some essential biologically important metal ions in 1, 2-propanediol-water mixtures

Journal of Chemical and Pharmaceutical Research
Open Access

OMICS International organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.

Open Access Journals gaining more Readers and Citations

700 Journals and 15,000,000 Readers Each Journal is getting 25,000+ Readers

This Readership is 10 times more when compared to other Subscription Journals (Source: Google Analytics)

Original Articles Open Access

Abstract

Chemical speciation of Co(II), Ni(II), Cu(II) and Zn(II) complexes of malonic acid in 0.0-60.0% v/v 1, 2- propanediol-water mixtures maintaining an ionic strength of 0.16 M at 303±0.1 K has been studied pH metrically. The predominant complexes formed are ML, ML2, ML2H and ML2H2 for Co(II) and Cu(II) and ML2, ML2H and ML2H2 for Ni(II) and Zn(II). Models containing different numbers of species were refined by using the computer program MINIQUAD75. Selection of the best-fit chemical models was arrived at based on statistical parameters. The trend in variation of complex stability constants with change in the dielectric constant of the medium is explained on the basis of electrostatic and non-electrostatic forces. Distributions of species, formation equilibria and effect of influential parameters on the stability constants have been presented. Possible structures of the various species present in solution are also indicated on the basis of the analysis of the pH metric data.

To read the full article Peer-reviewed Article PDF image

Author(s): Belete Yilma Hirpaye Mekonen Tirfu Zekarias and Gollapalli Nageswara Rao

Keywords

Binary species, Stability constant, Chemical speciation, Malonic acid, 1, 2-Propanediol., Chemical

 
Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

 
© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version
adwords