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The wild things that happen when you add lithium to 7-Up

Updated 4 years ago
Published Feb 22nd, 2016 11:50PM EST

It seems lately that the Internet can’t get enough of videos that show wild science experiments you can perform on soda. Another such example popped up over the weekend when Periodic Videos posted a video showing the absolutely insane reaction that 7-Up has after you mix it with lithium. As you can see in the picture at the top of the page, the soda drastically changed color and eventually turned so dark that you could mistake it for root beer.

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No, seriously: Take a look at what happens to it after the lithium has been dissolved in the 7-Up for a few minutes:

Why does this happen?

Running a pH test on both regular 7-Up and the lithium-infused 7-Up revealed that the lithium-enhanced solution was vastly more acidic than the original 7-Up sample. It seems that this strong acidity is responsible for the color change, as the researcher in the video then tried adding sodium hydroxide into 7-Up and found that it also changed the drink’s color, although not to the same extreme extent that the lithium did.

To get the full explanation for this drastic chemical change, check out the full video below.

Prior to joining BGR as News Editor, Brad Reed spent five years covering the wireless industry for Network World. His first smartphone was a BlackBerry but he has since become a loyal Android user.