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Re: tannic acid in powdered form



Try a hydroponics supply store.I am not sure if they will have tannic
acid,but they will have products very simular to blackwater extract at a
fraction of the cost of your lfs.
Vern


-----Original Message-----
From: Marco Lacerda <marcolacerda@ax.apc.org>
To: apisto@admin.listbox.com <apisto@admin.listbox.com>
Date: March 25, 1999 7:10 PM
Subject: Re: tannic acid in powdered form


>> I've never heard of this before.  If it exists, who makes it and where
can a
>> person get it?
>>
>> G. Kadar
>
>I buy it in Brazil, in a company based in Sao Paulo, but they import it
>from overseas, probably from USA or Germany.
>I suggest you check it with a Chemical comapany in US, it shouldn't be
>difficult to find it.
>Some Apisto books (if I'm not wrong Koslowski's book) suggest that good
>acid water can be prepared with a combination of tanic acid (mostly for
>brown color, as it is a "weak" acid and does not drop much pH values)
>and HCl. But unfortunately no quantities are given, neither by Römer or
>in the aquarium booksŠ
>
>
>
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