Nice Ice in the News
Clear Ice and Container Shape

Does Carbonated Water Make Clearer Ice than Still Water?

This is another in my ongoing experiments to make clear ice. So far, I've tried comparing:

Someone in the comments mentioned hearing that carbonated water would freeze more clearly than still water. As most of the cloudiness in ice appears to come from trapped oxygen, this didn't make sense to me, but I figured it couldn't hurt to try.

I froze equal amounts of still water and carbonated water and this is how they came out:


The carbonated water is on the right, and it sure as heck isn't clear. It's got kind of a fun texture with lots of air bubbles in it, but that doesn't get us anywhere for the purposes of this experiment.

Conclusion: Carbonated water does not make clearer ice than still water.

An index of ice experiments on Alcademics can be found here.


Feed You can follow this conversation by subscribing to the comment feed for this post.


Does the carbonated ice release co2 as it melts?

Camper English

It was sort of crack, snapple, pop but I didn't dunk it in water to notice if it was actually fizzing. That would be sort of cool...


It seems like you are on the right track but headed in the opposite direction. As the ice freezes the dissolved gases becomes less soluble. If the freezing is fast then the ice forms on the outside trapping the gas as it comes out of the water. The reason why frozen still water has less trapped air compared to frozen carbonated water is because it has less dissolved gas initially.
If the freezing is very slow then the air can diffuse out (diffusion is a slow process). If you can agitate the water as it freezes then you effectively speed up the diffusion process. You could also try putting the water under a vacuum (for example in a vacuum food container) when near freezing to reduce the dissolved gas concentration before the water freezes?


I would think that the water would be clearer because all the gas would release as it froze.. But apparently that is not the case! I wish I could help you on your journey to clear ice.. Maybe salty water?

Antique Jewelry

Verify your Comment

Previewing your Comment

This is only a preview. Your comment has not yet been posted.

Your comment could not be posted. Error type:
Your comment has been posted. Post another comment

The letters and numbers you entered did not match the image. Please try again.

As a final step before posting your comment, enter the letters and numbers you see in the image below. This prevents automated programs from posting comments.

Having trouble reading this image? View an alternate.


Post a comment

Your Information

(Name and email address are required. Email address will not be displayed with the comment.)