Buffers

[andie]

Hey!

 

I was wondering what are a couple of buffer systems in our everyday life besides our blood????

[andie]

is any one going to help????

[ecoli]

is any one going to help????

 

the oceans

[fredrik]

And beer. The dominating malt buffers are various phosphates, which then interact with water carbonates and organic acids produced during fermentation.

 

Therefore most beers have a fairly similar pH. Wine is more acidic partly because the buffering power in wine must is lower and second due to more organic acids in the first place.

 

/Fredrik

[John Cuthber]

Offhand, I can't think of any biological system that isn't buffered, possibly stomach contents which are strongly acid. Tears, blood, milk etc are all buffered.

[Borek]

Stomach? Strong acid solution behaves as buffer as well - pH doesn't change much when you add small amounts of acids/bases. See buffer and buffer capacity discussion.