The BRAY-LIEBHAFSKY OSCILLATORY REACTION AS AN EASY AVAILABLE ANALYTICAL TECHNIQUE FOR DETERMINATION OF RESORCINOL CONCENTRATION

Authors

  • Marija Veles University of Belgrade, Faculty for Physical Chemistry, Studentski trg 12-16, Belgrade
  • Ružica Erceg University of Belgrade, Faculty for Physical Chemistry, Studentski trg 12-16, Belgrade
  • Jelena Maksimović University of Belgrade, Faculty for Physical Chemistry, Studentski trg 12-16, Belgrade
  • Maja Pagnacco University of Belgrade, Institute of Chemistry, Tehnology and Metallurgy, Center for Catalysis and Chemical Engineering, Njegoševa 12, Beograd

Keywords:

Bray-Liebhafsky reaction, oscillatory reaction, resorcinol, analytical technique

Abstract

The Bray-Liebhafsky (BL) reaction is an oldest known oscillatory reaction. It consists only of three reactants potassium iodate (KIO3), sulfuric acid (H2SO4) and hydrogen-peroxide (H2O2) which provides its easy available chemical system. In this work, the resorcinol (1,3-benzenediol) effects on BL reaction dynamics, as well as its unknown concentration determination is investigated. Resorcinol is primarily used by the rubber industry, as well as in high-quality wood bonding, dyes, chemical fertilizers and in the manufacturing of certain chemicals. The addition of different resorcinol concentration after fifth oscillation affects the appearance of the sixth oscillation. Consequently, the time between fifth and sixth oscillations vs. resorcinol concentration can be successfully used for analytical curve construction, and further unknown resorcinol concentration determination. This work is an attempt to introduced oscillatory BL reaction for the analytical purpose; so far another oscillatory reaction known as Briggs-Rauscher reaction has been successfully used for these purposes.

References

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Published

2020-07-14

Issue

Vol. 9 No. 2 (2019): THEMATIC CONFERENCE PROCEEDINGS OF INTERNATIONAL SIGNIFICANCE

Section

Innovative Techniques and Equipment in Forensic Engineering