Actually it is something more obscure called Zwitterion, which is due to the 
amino
acids. A Zwitterion does make a good buffer though.

See:

http://chemed.chem.purdue.edu/genchem/topicreview/bp/1biochem/amino2.html

as well as:

http://unr.edu/homepage/vvasquez/courses/amino0.html
http://www.sfu.ca/chemcai/AQCHEM/ABG09.html
http://www.wikipedia.com/wiki/Zwitterion
http://academic.pg.cc.md.us/~ssinex/struc_bond/amino_acids.htm

Marshall

Malcolm Stebbins wrote:

> Hi to both of you; I think the effect you described, Marshall, is called
> Buffering.  Often it is purposely introduced into a compound (Bufferin, yes?) 
> to
> temper the action of some other part of the mix - usually the primary drug or
> what-have-you.  About a year ago someone (Jim Bare at rifetech I think) 
> posted a
> link to a site with a description of various buffering solutions, how to make
> them, what they'd be useful for, etc.
> Take care, Malcolm
> PS> Marshall I'm working on a response and questions to your reply to me, but
> needed to check out some info, and got sidetracked --As Usual!
>
> Connie wrote:
>
> > Thank you Marshall!
> > Connie
> >
> >
> >
> >      From: Marshall Dudley <[email protected]>
> >      Reply-To: [email protected]
> >      Date: Tue, 03 Sep 2002 20:31:15 -0400
> >      To: [email protected]
> >      Subject: Re: CS>neutralizing aloe??
> >      Resent-From: [email protected]
> >      Resent-Date: Tue, 3 Sep 2002 17:38:07 -0700
> >
> >
> >      It varies.  I use a swimming pool ph test kit and add the soda until
> >      the ph is 7.  I pretty well mix them all at once.  There are some
> >      things in aloe vera that can have an H or an OH tail, and if you add
> >      acid or alkaline will switch tails (I may not be describing this quite
> >      right, I read a paper on it quite some time ago). So what happens is
> >      that as you add the soda, the ph increases quickly until it reaches 7,
> >      then you can add quite a bit more before it starts increasing again.
> >      Thus you will find that a fairly wide range of soda will give the same
> >      result in the end of 7.
> >
> >      Marshall
> >
> >
> >
>
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