Letter 19026

Do soft drinks corrode metal? [Louisiana]  

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I am doing a science fair project on how soft drinks corrode metal . In my experiment I am going to place coke a cola , sprite and water in clear jars. I am going to place a piece of metal in each jar and take pictures each day of the results . If you could please send me some information I would very much appreciate it .

Thank you,

Morgan
- West Monroe, LA

I saw this experiment on TV. Here's how you do it: You place a corrosive metal such as iron, steel, or zinc into the liquid. Then place a non corrosive metal such as copper or graphite into the liquid with it. Very important: MAKE SURE THE METALS ARE NOT TOUCHING!!! That would ruin the experiment. After a couple of days or weeks (longer the better) the corrosive metal should be smaller or have holes in it. This experiment works best if you are using acids like citric (citrus juice) or acetic (vinegar). The soda might not work as well but give it your best shot. I've done this experiment with ascorbic acid and it worked great. Good Luck!

Gianni Paul C.
- Redding, California, USA

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