Re: Can hydrogen carbonate be used to text oxygen concentration in air?

Hi Bob,

Bob 寫道：
> What do you think would happen?

Not sure. Perhaps, there is a color change to hydrogen carbonate.

>
> And what, pray tell, do you mean by hydrogen carbonate?
>
> How much variation in O2 content of your local air are you worrying
> about?

Oh, no...I am not worrying about the O2 content. I just asked for my
friend who were asking me if hydrogen carbonate could be used as an
oxygen content indicator.

David

>
> bob

.