Gallium (beating heart) - Periodic Table of Videos
Our updated video about Gallium includes an experiment called "the beating heart" and news of a breakthrough in a our very own labs! More links in description below ↓↓↓ Support Periodic...
==========
We are going to try and do an experiment today. It is calledthe ‘gallium beating heart’. So it is quite a cool experiment,you take some molten gallium and then you submerge it oryou put it underneath a layer of sulphuric acid. The sulphuricacid reacts with the gallium to form gallium sulphate and itchanges the surface tension, so it all pulls up into a ball andthen relaxes and there is this really neat oscillating reactionwhere you get sulphate on the surface or no sulphate on thesurface. So you see big changes in surface tension and thepiece of gallium is seen to beat like a heart so we thought wewould try that today with a bit of gallium which I am trying tomelt in my hand right now.Many years ago, a professor bet me a hundred pounds, whena hundred pounds was a ...
==========
We are going to try and do an experiment today. It is calledthe ‘gallium beating heart’. So it is quite a cool experiment,you take some molten gallium and then you submerge it oryou put it underneath a layer of sulphuric acid. The sulphuricacid reacts with the gallium to form gallium sulphate and itchanges the surface tension, so it all pulls up into a ball andthen relaxes and there is this really neat oscillating reactionwhere you get sulphate on the surface or no sulphate on thesurface. So you see big changes in surface tension and thepiece of gallium is seen to beat like a heart so we thought wewould try that today with a bit of gallium which I am trying tomelt in my hand right now.Many years ago, a professor bet me a hundred pounds, whena hundred pounds was a ...
