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Description
| - The reaction between tetrathionate and hydrogen peroxide forms a part of some pH-oscillators based on oxidation of thiosulfate. The kinetics of this reaction have been studied using a pH-meter in the pH range of about 8 to 10.5. Experimental data were evaluated by the method of initial reaction rates combined with assumption of instantaneously equilibrated acid-base reactions. The rate-determining step was found to be first order with respect to tetrathionate, hydrogen peroxide and OH- ions concentrations. The waveform of measured pH during the course of reaction indicates that thiosulfate is a probable intermediate, because typical characteristics of obtained time-curves are very similar to those for oxidation of thiosulfate. In the alkaline solution no clear catalytic effect of Cu2+ was observed.
- The reaction between tetrathionate and hydrogen peroxide forms a part of some pH-oscillators based on oxidation of thiosulfate. The kinetics of this reaction have been studied using a pH-meter in the pH range of about 8 to 10.5. Experimental data were evaluated by the method of initial reaction rates combined with assumption of instantaneously equilibrated acid-base reactions. The rate-determining step was found to be first order with respect to tetrathionate, hydrogen peroxide and OH- ions concentrations. The waveform of measured pH during the course of reaction indicates that thiosulfate is a probable intermediate, because typical characteristics of obtained time-curves are very similar to those for oxidation of thiosulfate. In the alkaline solution no clear catalytic effect of Cu2+ was observed. (en)
- Reakce tetrathionanu s peroxidem vodíku představuje nedílnou součást pH-oscilátorů založených na oxidaci thiosíranu peroxidem. Kinetika této reakce v mírně alkalické oblasti (pH 8 až 10,5) byla studována pomocí pH-metru metodou počátečních reakčních rychlostí spojenou s aproximací rychle se ustavujících acidobazických rovnovah. Rychlost oxidace je podle experimentálních dat přímo úměrná součinu koncentrací tetrathionanu, peroxidu vodíku a iontů OH-. Za uvedených podmínek nebyl pozorován žádný dříve uváděný katalytický vliv měďnatých iontů. Charakteristický tvar pH měřeného v průběhu reakce naznačuje, že pravděpodobným meziproduktem oxidace tetrathionanu je thiosíran. (cs)
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Title
| - Oscillatory reactions involving hydrogen peroxide and thiosulfate - kinetics of the oxidation of tetrathionate by hydrogen peroxide
- Oscillatory reactions involving hydrogen peroxide and thiosulfate - kinetics of the oxidation of tetrathionate by hydrogen peroxide (en)
- Oscilační reakce zahrnující peroxid vodíku a thiosíran - kinetika oxidace tetrathionanu peroxidem vodíku (cs)
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skos:prefLabel
| - Oscillatory reactions involving hydrogen peroxide and thiosulfate - kinetics of the oxidation of tetrathionate by hydrogen peroxide
- Oscillatory reactions involving hydrogen peroxide and thiosulfate - kinetics of the oxidation of tetrathionate by hydrogen peroxide (en)
- Oscilační reakce zahrnující peroxid vodíku a thiosíran - kinetika oxidace tetrathionanu peroxidem vodíku (cs)
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skos:notation
| - RIV/60461373:22340/04:00013207!RIV/2005/GA0/223405/N
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http://linked.open.../vavai/riv/strany
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
| - P(GP203/02/D051), Z(MSM 223400007)
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/60461373:22340/04:00013207
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - hydrogen peroxide;tetrathionate;thiosulfate;pH-oscillator (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...ontrolniKodProRIV
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http://linked.open...v/mistoKonaniAkce
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http://linked.open...i/riv/mistoVydani
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http://linked.open...i/riv/nazevZdroje
| - Proceeding of 31th International Conference of Chemical Engineering, Tatranské Matliare, Slovakia
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...vavai/riv/projekt
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http://linked.open...UplatneniVysledku
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http://linked.open...iv/tvurceVysledku
| - Schreiber, Igor
- Voslař, Michal
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http://linked.open...vavai/riv/typAkce
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http://linked.open.../riv/zahajeniAkce
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http://linked.open...n/vavai/riv/zamer
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number of pages
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http://purl.org/ne...btex#hasPublisher
| - Slovenská technická univerzita v Bratislave
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https://schema.org/isbn
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http://localhost/t...ganizacniJednotka
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