TIME Food & Drink

Here’s the Gross Thing That Happens When You Mix 7-Up With Lithium

Anyone for an ice cold glass of black sludge?

When 7-Up was first invented, one of its ingredients was lithium salts. In fact, the fizzy drink was originally known as “Bib-Label Lithiated Lemon-Lime Soda,” according to the Huffington Post. Of course, the mind-altering substance was removed from the drink when the U.S. Food and Drug Administration outlawed the use of the chemical in soda in 1948.

Read More: These Amazing Chemical Reactions Will Show You the True Beauty of Science

However, the team over at Periodic Videos recently decided to test what would happen if they tried to add lithium back into 7-Up. In the clip, Sir Martyn Poliakoff, a chemistry professor at the University of Nottingham, explains what happened when his colleagues placed a piece of lithium inside a beaker containing the beverage. The mixture quickly began to heat up, boil, and change color, finally resulting in a black alkaline goo.

Watch the full video below.

Tap to read full story

Your browser is out of date. Please update your browser at http://update.microsoft.com


YOU BROKE TIME.COM!

Dear TIME Readers,

As a regular visitor to TIME.com, we are sure you enjoy all the great journalism created by our editors and reporters. Great journalism has great value, and it costs money to make it. One of the main ways we cover our costs is through advertising.

The use of software that blocks ads limits our ability to provide you with the journalism you enjoy. Consider turning your Ad Blocker off so that we can continue to provide the world class journalism you have become accustomed to.

The TIME Team