Exposing the soda can liner

• We made a solution to expose the soda can liner.

• First we scratched off the paint with sand paper

• Then we filled the soda can up with tap water. • Then placed the can in a 600 mL beaker and

poured 6M sodium hydroxide to cover 3 quarters of the can.

Purpose

• The reason we did this experiment was to understand why the plastic liner was in the soda can.

• The solution essentially melted away the aluminum leaving us with plastic.

Data

• The data we gathered during this experiment was that time was a huge factor considering on the paper it said it would take 10-15 minutes but it ended up taking 2 hours for the liner to be exposed.

• When we first placed the cans in the solution we noticed that the solution started eating away at the aluminum creating a fizz which started to take the paint off.

Before and after

Conclusion

• During this experiment we learned that the solution slowly ate away at the can.

• When we started this experiment we thought that it was going to eat away at the aluminum quickly especially since it was starting to fizz but instead it took 2 hours and the fizz didn’t go away until the aluminum was completely gone.

• For another experiment we would want to create a solution that would be able to eat away at the aluminum and the liner.