Easy way to make carbonic acid from other chemicals

[kelvin490]

TL;DR Summary

Easy way to make carbonic acid from other chemicals

Hi, everyone. I would like to test for the reaction between carbonic acid and copper (to simulate the effect of acid rain on copper). However, I find that many supplies failed to provide carbonic acid (either in powder or liquid form). Some says that carbonic acid is unstable and thus cannot supply it. Therefore, I want to make it myself. Are there any simple ways to make carbonic acid from other chemicals (e.g. sodium carbonate?).

Also, I have found some carbonic acid powder in some commercial product such as this one:
https://www.hktvmall.com/hktv/en/ma...Acid-Cool-Bathing-Powder/p/S1098001_S_HKG-024

But it is for bathing instead of chemical use. Can they produce carbonic acid?

Any answers and comments are welcome. Thank you very much for helping.

 

[Borek]

Just saturate the solution with carbon dioxide. As far as I remember pure carbonic acid requires quite exotic conditions to exist.

 

[rbelli1]

Can they produce carbonic acid?

The tablets produce carbon-dioxide which dissolves in the water creating carbonic acid. Likely the tablets are sodium bi-carbonate and some solid acid. Alkaseltzer is similar and uses citric acid.

BoB

 

[chemisttree]

Seltzer water? Or a drinking fountain without the syrup? How about placing copper sample into a soda pop bottle filled with water. “Pop” in a pellet of dry ice and close with screw cap.

 

[TeethWhitener]

“Pop” in a pellet of dry ice and close with screw cap.

PLEASE DON'T SEAL DRY ICE IN AN AIRTIGHT CONTAINER!

 

[chemisttree]

PLEASE DON'T SEAL DRY ICE IN AN AIRTIGHT CONTAINER!

That’s how we used to carbonate homemade root beer. A pellet about the size of a pea into a 12 oz bottle and then cap it closed. Using a screw cap to close it implies using a plastic bottle, although I didn’t specify. One pellet in 12 oz isn’t going to make a bomb y’know!

 

[Borek]

Paraphrasing Paracelsus - it is a dose that makes a bomb.