Re: NANFA-- Amquel Plus?

Harry Knaub (harryknaub_at_suscom.net)
Sun, 4 Apr 2004 15:52:51 -0400

Thanks to both Lee and Dustin for clearing that up. I haven't had any
problems using thiosulfate, but it's always good to have an understanding of
the science when dealing with water chemistry.

Harry Knaub
----- Original Message -----
From: <EELReprah_at_aol.com>
To: <nanfa_at_aquaria.net>
Sent: Saturday, April 03, 2004 10:42 AM
Subject: Re: NANFA-- Amquel Plus?

> In a message dated 4/3/04 9:11:20 AM, dsmith73_at_hotmail.com writes:
>
> << Thiosulfate basically binds the chlorine and falls out of solution.
This
> bond can over time degrade and release the free chlorine back into the
> system. It is also specific to chlorine and does little in the way of
> removing chloramines and ammonia. Amquel actually causes a structural
> change forming a much stronger compound. At least this is the way it was
> explained to me by the guy from Kordon that spoke to one of the local
clubs
> a few years ago. >>
>
> Not exactly right. Thiosulfate reduces the chlorine and chloramine to
> nontoxic chloride and that is essentially irreversible under any normal
conditions.
> Amquel does exactly the same thing since it also contains a reactive group
> similar to thiosulfate. However, thiosulfate does nothing for the ammonia
released
> from chloramine, whereas Amquel complexes it to form a stable, nontoxic
> adduct. If you have an acid condition the ammonia released is not very
toxic. If
> you have an alkaline condition the ammonia is very toxic, even at the 1-2
ppm
> released. I use thiosulfate plus Amquel to save money. I also rely heavily
on an
> inline carbon filter for my flow through water changing system.
>
> Lee Harper
> Media, PA

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