Re: Aquatic Plants Digest V1 #257
I _really_ appreciate the attention my recent post has attracted. I'm
trying hard to understand this phosphate thing (and handle it in the least
expensive way), but. . . .
I'm really sorry, folks, but would you mind translating the following?
> Orthophosphate is _not_ a long chain phosphate, it is the
usual phosphate, PO4---, HPO4--, H2PO4- or H3PO4, depending on the pH.
At pH of interest to us, it will be almost entirely in the middle two
forms. Hexametaphosphate _is_ polymeric.
>Phosphate doesnt hold ferric iron in solution. It forms complex
oxyhydroxide colloids which eventually precipitate into the substrate.
Department of History
University of Iowa
D****it Jim, I'm a historian, not a chemist