Lowering pH with CO2

[CarlD]

To the China Shop with this thread!

I cannot recommend Dry Ice to lower pH!

It's an interesting intellectual exercise, but not practical.

[Jakebear]

Wow I'm doing pretty good --- I think that makes 4 posts that I started that got moved here Ben really needs to create the Geek page.

Richard, Thanks for the physics lesson (thought you were a chemist ). I don't know why but I thought CO2 was colder but like you say the proportion is so wide I can understand the minimum temp loss.

In my previous lifetime I worked the meat processing industry. We used liquid CO2 in the process. Stored in a non-refrigerated or insulated tank. When it came out the pipe it turned to CO2 snow. -- I suppose that would be a delivery method rather than cakes at atmospheric pressure.