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Dynamical Regime of the Phloroglucinol‐Based Chemical Oscillator in the Presence of Alcohols: Rebirth of Oscillations after an Inhibition Time
Author(s) -
Gull Usma,
Peerzada Ghulam Mustafa,
Ganaie Nadeem Bashir,
Rashid Sna
Publication year - 2017
Publication title -
international journal of chemical kinetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.341
H-Index - 68
eISSN - 1097-4601
pISSN - 0538-8066
DOI - 10.1002/kin.21106
Subject(s) - chemistry , alcohol , methanol , butanol , propanol , ethanol , phloroglucinol , perturbation (astronomy) , organic chemistry , physics , quantum mechanics
This study pertains to the dynamic evolution of the Belousov–Zhabotinsky (BZ) chemical oscillator upon the addition of different aliphatic alcohols (methanol, ethanol, n ‐propanol, iso‐propanol, n ‐butanol, sec‐butanol, iso‐butanol, and tert‐butanol) at 30°C in a stirred batch reactor. The oscillations are monitored potentiometrically. The experimental findings reveal that the course of the BZ reaction is significantly altered depending on the concentration of the alcohol and the type of the carbon chain present. The mechanism of the alcohol perturbation has been interpreted on account of the experimental results. Besides the qualitative study, a new approach for monitoring the analytical concentration of these alcohols using the BZ oscillatory regime has been explored and it has been found that the alcohol perturbation is directly related to the concentration of the alcohol added, which in turn depends on the inhibition time for the rebirth of oscillatory regime.