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File:16. Реакција меѓу силно оксидационо и редукционо средство.webm

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Македонски: Демонстрација на реакцијата меѓу силно оксидационо и редукционо средство. Кога на спрашен калиум перманганат (силно оксидационо средство) ќе се додадат неколку капки глицерол (редукционо средство), за неколку секунди (во зависност од степенот на спрашеност на калиум перманганатот) започнува бурна реакција проследена со палење на смесата. Реакцијата се одвива како резултат на силните оксидациони својства на калиум перманганатот и редукционите својства на глицеролот. Процесот грубо може да се опише со помош на хемиската равенка:
14KMnO4(s) + 4C3H5(OH)3(l) → 7K2CO3(s) + 7Mn2O3(s) + 5CO2(g) + 16H2O(g).
Осмислено и изведено од Марина Стојановска, Миха Буклески и Владимир Петрушевски, Институт за хемија, ПМФ, УКИМ, Скопје.
English: Demonstration of the reaction between a strong oxidising and a reducing agent. When few drops of glycerol (reducing agent) are added to powdered potassium permanganate (strong oxidising agent), a vigorous reaction accompanied by self-ignition starts. The reaction takes place as a result of the strong oxidising properties of the potassium permanganate and at the same time the reducing properties of the glycerol. The process can be roughly described by the chemical equation:
14KMnO4(s) + 4C3H5(OH)3(l) → 7K2CO3(s) + 7Mn2O3(s) + 5CO2(g) + 16H2O(g).
Planned and performed by Marina Stojanovska, Miha Bukleski and Vladimir Petruševski, Department of Chemistry, FNSM, Ss. Cyril and Methodius University, Skopje, Macedonia.
Română: Demonstrație a reacției între un oxidant puternic și un agent reducător. Când se adaugă câteva picături de glicerol (agent reducător) la pulberea de permanganat de potasiu (oxidant puternic), se declanșează o reacție viguroasă însoțită de autoaprindere. Reacția are loc ca urmare a puternicelor proprietăți de oxidare ale permanganatului de potasiu, combinate cu proprietățile reducătoare ale glicerolului. Procesul este descris de reacția chimică:
14KMnO4(s) + 4C3H5(OH)3(l) → 7K2CO3(s) + 7Mn2O3(s) + 5CO2(g) + 16H2O(g).
Planificat și efectuat de Marina Stojanovska, Miha Bukleski and Vladimir Petruševski, Catedra de Chimie, FNSM, Universitatea Sfinții Chiril și Metodiu, Skopje, Macedonia.
Čeština: Demonstrace reakce mezi silným oxidačním a redukčním činidlem. Pokud nakapeme glycerol na práškový manganistan draselný, dojde k prudké reakci a samozapálení směsi.
14 KMnO4(s) + 4 C3H5(OH)3(l) → 7 K2CO3(s) + 7 Mn2O3(s) + 5 CO2(g) + 16 H2O(g)
Date
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Author Petrovskyz

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Demonstration of the reaction between a strong oxidising and a reducing agent

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redox

potassium permanganate

glycerol

inception

18 October 2016

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