[APD] carbonate test

["Robert Flory" <wyogeo at astound_net>]

The recipe geologists use is a "10 Molar" solution.... for the chemically
inept among us, 10% will do the trick or any thing close.
Hot vinegar on powdered rock probably would do the trick.   Incidently
dolomite  (MgCaO3) commonly will not fizz with 10% HCl, but will disolve
just raise your carbonates, probably just not as fast.    Solid, the more Mg
the less it fizzes, but powdered it usually will fizz.  Scratch the rock
with hard steel  (knife blade) till you have a few white lines, then use the
acid.

Bob

Bob
gray beardd geologist

> Date: Fri, 21 Nov 2003 07:08:32 -0800 (PST)
> From: "S. Hieber" <shieber at yahoo_com>
> Subject: Re: [APD] Re: Aquatic-Plants Digest, Vol 3, Issue 28
> To: aquatic plants digest <aquatic-plants at actwin_com>
>
> "Not adequate" would be a better way to put it, if I
> understood Roger correctly. He recommended using
> Hydrochloric acid (swimming pool acid) instead at a 5%-10%
> solution. Vineger is too weak to reveal the carbonates that
> might be on the rock or in it at/near the surface.
>
>
> --- Joey Chen <hubbahubbahehe at yahoo_com> wrote:
> > So the vinegar test was debunked?  so it's no good ?
>
>
> =====
> S. Hieber


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