Complex dynamics of oxidation of thiosulphate by hydrogen peroxide catalyzed by cupric ions

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F06%3A00016829" target="_blank" >RIV/60461373:22340/06:00016829 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Complex dynamics of oxidation of thiosulphate by hydrogen peroxide catalyzed by cupric ions

Original language description

The oxidation of thiosulphate by hydrogen peroxide catalyzed by cupric ions in acidic solution of sulphuric acid (HPTCu reaction) is studied. The reaction exhibits large variety of nonlinear dynamical behaviour (oscillations, bistability and excitability). This reaction belongs to the group of so-called pH-oscillators, because of significant changes in the pH value in time. To explain such complex nonlinear behaviour, the mechanism of the reaction is needed. To improve existing mechanistic model1 more experimental date are needed. In this paper the experimental study of the HPTCu reaction is presented. It is known, that HPTCu reactions exhibits different types of oscillations. But no detailed study of oscillatory regimes has been published except for work of Orbán and Epstein2. Therefore the focus of this contribution is on oscillatory behaviour of the HPTCu reaction carried out in a continuous stirred tank reactor (CSTR) at constant temperature. The pH time series are measured. The re

Czech name

Smíšené oscilace v pH-oscilátoru

Czech description

Reakce peroxidu vodíku s thiosíranem v kyselém prostředí za přítomnosti mědi vykazuje velmi složité chování. Pokud je celá reakce prováděna v průtočném míchaném reaktoru za konstantní teploty, lze pozorovat různé dynamické režimy pouhým měřením hodnoty pH, která se v průběhu času výrazně mění. Cílem práce je analýza složítého dynamického chování této reakce.

Type

D - Article in proceedings

CEP classification

CI - Industrial chemistry and chemical engineering

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2006

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Proceedings of 33rd International Conference of SSCHE

ISBN

80-227-2409-2

ISSN

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e-ISSN

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Number of pages

8

Pages from-to

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Publisher name

Slovak University of Technology

Place of publication

Bratislava

Event location

Tatranské Matliáre

Event date

May 22, 2006

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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