Study of the BZ oscillating system in the presence of silica nanoparticles containing NiO using a new approach: Conductometry


1 Faculty of Chemistry, University of Mazandaran, Babolsar, Iran

2 Research institute of petroleum industry, Tehran, Iran

3 Islamic Azad University, Science and Research Branch, Tehran, Iran


Oscillating chemical reactions are complex systems involving a large number of chemicalspecies such as ionic, radical and molecular intermediates, which exhibit fluctuation in their concentration with time. One of the oscillating chemical reactions is BZ {---}System. In this work for the first time a new, simple and appropriate method, i.e.conductometry, have applied for the investigation of BZ oscillating system.Furthermore, presence of SiO2 nanoparticles containing NiO apparently affected the intensity and period of BZ system. The effect of varying concentrationof , ,  and on the conductance of BZ oscillating chemical system at 20 (±0.1)°C was also investigated. The obtained results of this work indicated that rather than potential and color of the BZ system, the conductance of system is also oscillates during the reaction and is also proportional to the reactants concentration as well. The intensity, intensity and period of the oscillation are strongly depending on the concentration of reactants.