File:Разложение перманганата калия, или Космос в стаканчике.jpg
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Captions
Captions
Decomposition of potassium permanganate, or Space in a cup
Summary
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Русский: За свойство менять цвет в процессе разложения реакция названа минеральным хамелеоном. Это свойство отражено на фотографии: кислород создаёт на поверхности пузыри, при восхождении оксида марганца смесь принимает цвет фуксии, после чего в дело вступает гидроксид калия -- тёмно-бурая окраска с желтоватой пенкой напоминает Кока-Колу.
Это неспроста: в газировке есть краситель сахарный колер, полученный из жжёного сахара. Из-за окисления под воздействием тёмной температуры он становится таковым, тот же цвет можно получить при смешении серной кислоты и сахара. В случае окисления марганцовки роль "сахара" играет остаточная смесь водорода калия. P. S. Возможно, это антинаучно, но, я считаю, заслуживает внимания хотя бы в дизайне. Взгляните на этот "космический" принт пенной марганцовки. Красота!English: Due to the property of changing color during decomposition, the reaction is called a mineral chameleon. This property is reflected in the photo: oxygen creates bubbles on the surface, when manganese oxide rises, the mixture takes the color of fuchsia, after which potassium hydroxide comes into play - a dark brown color with a yellowish foam resembles Coca-Cola. This is not for nothing: there is a sugar colorant in soda, obtained from burnt sugar. Due to oxidation under the influence of dark temperature, it becomes so, the same color can be obtained by mixing sulfuric acid and sugar. In the case of oxidation of potassium permanganate, the role of "sugar" is played by a residual mixture of potassium hydrogen. PS Perhaps this is unscientific, but I think it deserves attention at least in design. Take a look at this "cosmic" print of foam permanganate. Beauty! |
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| Source | https://www.flickr.com/photos/195754571@N03/52112779238/ |
| Author | Viktoria Kranz |
Licensing
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This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication. |
| The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.
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This image was originally posted to Flickr by vika.vika0215 at https://flickr.com/photos/195754571@N03/52112779238. It was reviewed on 31 May 2022 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-zero. |
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This image was uploaded as part of Russian Science Photo Competition 2022.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 17:52, 31 May 2022 | | 1,280 × 960 (270 KB) | Kranz Viktoria (talk | contribs) | Uploaded a work by Viktoria Kranz from https://www.flickr.com/photos/195754571@N03/52112779238/ with UploadWizard |
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