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Watch a Lithium and Soft Drink Reaction Unfold

Before 1948, lithium was a key ingredient in Pepsi's SEVEN-UP. Today, drink manufacturers steer clear of using it in sodas. In this video, a British chemist brings lithium back to SEVEN-UP. The result? At first, the drink fizzes, then darkens to a deep brown, reaching temperatures around 50 degrees Celsius.

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The First Step: Adding Lithium to the Soda

The first step - lithium added to the sodaThe first step - lithium added to the soda

 

After 30 seconds, lithium causes the soda to fizz

After 30 secondsAfter 30 seconds

Finally, the soda turns brown and bubbles at a temperature of 50 degrees Celsius. 

Lithium turns the clear soda - blackLithium turns the clear soda - black

Watch the video:

 

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