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- Chemical_chameleon abstract "The chemical chameleon is a redox reaction, well known from classroom demonstrations, that exploits the dramatic color changes associated with the various oxidation states of manganese.Glauber reported the first description of the production of potassium permanganate when he noted that manganese dioxide (as the mineral pyrolusite) could be reacted at high temperatures with alkali to obtain a material that dissolved in water to give a green solution which slowly shifted to a violet-red. This process, similar to that still used in the production of potassium permanganate, oxidized manganese dioxide to potassium manganate which, acidified by carbon dioxide absorbed from the air, oxidized further to purple potassium permanganate.The chemical chameleon reaction shows the process in reverse, by reducing violet potassium permanganate first to green potassium manganate and eventually to brown manganese dioxide:KMnO4 (violet) → K2MnO4 (green) → MnO2 (brown/yellow suspension)Blue potassium hypomanganate may also form as an intermediate.The reaction proceeds in alkaline conditions under the influence of a reducing agent. Sodium hydroxide, potassium hydroxide, and ammonium hydroxide can be used to alkalize the permanganate solution, while a variety of reducing agents can be used, sugars being common.A similar demonstration involves soaking paper in alkalized permanganate solution, which produces the same color changes as the paper is oxidized and the permanganate reduced.".
- Chemical_chameleon wikiPageID "42257838".
- Chemical_chameleon wikiPageLength "4061".
- Chemical_chameleon wikiPageOutDegree "25".
- Chemical_chameleon wikiPageRevisionID "603184072".
- Chemical_chameleon wikiPageWikiLink Alkali.
- Chemical_chameleon wikiPageWikiLink Ammonium_hydroxide.
- Chemical_chameleon wikiPageWikiLink Carbon_dioxide.
- Chemical_chameleon wikiPageWikiLink Category:Chemistry_classroom_experiments.
- Chemical_chameleon wikiPageWikiLink Category:Chemistry_experiments.
- Chemical_chameleon wikiPageWikiLink File:Chemical_chameleon_redox_reaction_(permanganate).ogg.
- Chemical_chameleon wikiPageWikiLink Johann_Rudolf_Glauber.
- Chemical_chameleon wikiPageWikiLink Manganese.
- Chemical_chameleon wikiPageWikiLink Manganese_dioxide.
- Chemical_chameleon wikiPageWikiLink Potassium_hydroxide.
- Chemical_chameleon wikiPageWikiLink Potassium_hypomanganate.
- Chemical_chameleon wikiPageWikiLink Potassium_manganate.
- Chemical_chameleon wikiPageWikiLink Potassium_permanganate.
- Chemical_chameleon wikiPageWikiLink Pyrolusite.
- Chemical_chameleon wikiPageWikiLink Redox.
- Chemical_chameleon wikiPageWikiLink Redox_reaction.
- Chemical_chameleon wikiPageWikiLink Sodium_hydroxide.
- Chemical_chameleon wikiPageWikiLink Sugar.
- Chemical_chameleon wikiPageWikiLinkText "chemical chameleon".
- Chemical_chameleon hasPhotoCollection Chemical_chameleon.
- Chemical_chameleon wikiPageUsesTemplate Template:Chem.
- Chemical_chameleon wikiPageUsesTemplate Template:Reflist.
- Chemical_chameleon subject Category:Chemistry_classroom_experiments.
- Chemical_chameleon subject Category:Chemistry_experiments.
- Chemical_chameleon hypernym Reaction.
- Chemical_chameleon type Disease.
- Chemical_chameleon comment "The chemical chameleon is a redox reaction, well known from classroom demonstrations, that exploits the dramatic color changes associated with the various oxidation states of manganese.Glauber reported the first description of the production of potassium permanganate when he noted that manganese dioxide (as the mineral pyrolusite) could be reacted at high temperatures with alkali to obtain a material that dissolved in water to give a green solution which slowly shifted to a violet-red.".
- Chemical_chameleon label "Chemical chameleon".
- Chemical_chameleon sameAs m.0100jpn3.
- Chemical_chameleon sameAs வேதியியல்_பச்சோந்தி.
- Chemical_chameleon sameAs Q17050682.
- Chemical_chameleon sameAs Q17050682.
- Chemical_chameleon wasDerivedFrom Chemical_chameleon?oldid=603184072.
- Chemical_chameleon isPrimaryTopicOf Chemical_chameleon.