File:Gallium beating heart.webm
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Gallium_beating_heart.webm (file size: 3.78 MB, MIME type: video/webm)
Summary
| Description |
English: The gallium beating heart is a chemistry demonstration in which a drop of gallium is made to pulsate, like a beating heart. The gallium beating heart is similar to the mercury beating heart, but gallium is much less toxic, so this demonstration may be preferable. To make this experiment I have melted piece of gallium in 20% hot sulfuric acid. Next, i am adding to the solution droplets of 5% potassium dichromate solution. A sound effect of a beating heart has been added to this video.
Polski: Bijące serce z galu to reakcja chemiczna, podczas której kropla galu pulsuje jak bijące serce. Aby przeprowadzić eksperyment, należy roztopić kawałek galu w gorącym 20% kwasie siarkowym, a następnie dodać do niego kilka kropel 5% roztworu dichromianu potasu.
Čeština: Tlukouci galliové srdce je chemická reakce, při které kapka kapalného gallia pulzuje jako bijící srdce. K provedení tohoto experimentu je třeba ponořit kousek roztaveného gallia do horké 20 % kyseliny sírové a přidat několik kapek 5 % roztoku dichromanu draselného.
Македонски: „Галиумско срце што чука“ — хемиска реакција каде парче галиум отчукува како срце. Парче галиум се топи во врела 20% сулфурна киселина со додавање на неколку капки од 5% раствор на калиум дихромат.
中文（简体）：“镓心反应”是镓像心脏那样有规律跳动的演示实验，它和汞心反应类似，但是镓的毒性较小，更适合作为演示实验。镓在20%热的硫酸中熔化（并放出氢气），溶液中加有5%重铬酸钾溶液染色。心跳声另加入视频中。 |
| Date | |
| Source | Own work |
| Author | Maxim Bilovitskiy |
Assessment
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This file was selected as the media of the day for 03 August 2016. It was captioned as follows:
English: The gallium beating heart is a chemistry reaction in which a drop of gallium is made to pulsate, like a beating heart. To make this experiment, melt a piece of gallium in hot 20% sulfuric acid and add to the solution several drops of 5% potassium dichromate solution.
Other languages
Čeština: Tlukouci galliové srdce je chemická reakce, při které kapka kapalného gallia pulzuje jako bijící srdce. K provedení tohoto experimentu je třeba ponořit kousek roztaveného gallia do horké 20 % kyseliny sírové a přidat několik kapek 5 % roztoku dichromanu draselného. English: The gallium beating heart is a chemistry reaction in which a drop of gallium is made to pulsate, like a beating heart. To make this experiment, melt a piece of gallium in hot 20% sulfuric acid and add to the solution several drops of 5% potassium dichromate solution. Македонски: „Галиумско срце што чука“ — хемиска реакција каде парче галиум отчукува како срце. Парче галиум се топи во врела 20% сулфурна киселина со додавање на неколку капки од 5% раствор на калиум дихромат. Polski: Bijące serce z galu to reakcja chemiczna, podczas której kropla galu pulsuje jak bijące serce. Aby przeprowadzić eksperyment, należy roztopić kawałek galu w gorącym 20% kwasie siarkowym, a następnie dodać do niego kilka kropel 5% roztworu dichromianu potasu.
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Licensing
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This image was uploaded as part of European Science Photo Competition 2015. |
File history
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 14:44, 30 November 2015 | (3.78 MB) | imagescommonswiki>Bilovitskiy | User created page with UploadWizard |
File usage
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- File:Gallium beating heart.webm from Wikimedia Commons
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