Re: [APD] Re: OUCH! -- or- A Genuine Acid Test

["S. Hieber" <shieber at yahoo_com>]

According to Roger Miller last November, the weak acid
vinegar) can easily give a false negative (no reaction but
carbonates are present. The stronger acid can do so also
but it is much less likely to do so -- and what it might
miss would probably be carbonates deep in the rock that
would only leach out very slowly). For substrates, unless
the grain size is unusually large ;-), carbonates
"deep-in-the-rock" are unlikely to be an issue.

Wear gloves; handle with care.

Scott H.
--- Wright Huntley <whuntley at verizon_net> wrote:
> I have found vinegar to be a bit unreliable for detecting
> carbonates in 
> gravel. Depending on the history, it may give no
> "fizzing" at all, while 
> good old cheap (if more dangerous) pool acid, aka
> muriatic, aka 
> hydrochloric, will always produce visible bubbles on
> substrates, rocks 
> or ornaments that tend to harden your water. Just my
> $0.02, YMMV.
> 
> Wright
> 
> > Message: 1
> > Date: Sun, 8 Feb 2004 12:14:24 -0500
> > From: "Joshua L Wiegert" <jlw at dune_net>
> > Subject: [APD] Re: OUCH!
> > To: <aquatic-plants at actwin_com>
> > 
> > White vinegar works as well as any other acid, and is
> easier to come by -- 
> > its probably in your kitchen.
> > 
> > JW.
> 
> 
> -- 
> Wright Huntley -- 760 872-3995 -- Rt. 001 Box K36, Bishop
> CA 93514
> 
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=====
S. Hieber

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