EtOH precipitation

Jim Litts jlitts at
Wed Mar 8 19:06:14 EST 1995

In article <3j84ej$8va at>, Rick Conrad
<rconrad at> wrote:

> Anyone out there have a history of the different salts used in ethanol
> precipitations?  I know ammonium acetate is supposed to leave small
> molecules in the supe, but why sodium acetate versus chloride (or vice
> versa)?  Any citations relating to this (I've read the basically non-
> informative Maniatis and Red Book blurbs) would be appreciated.

I believe it is simply because the acetate salts are much more soluble in
EtOH containing solutions.

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