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Re: Color of K2SO4

To: Aquatic-Plants at actwin_com
Subject: Re: Color of K2SO4
From: George Slusarczuk <yurko at warwick_net>
Date: Sat, 16 Dec 2000 10:59:24 +0000
References: <200012160848.DAA02114 at actwin_com>

Hello,

In the pure state, the nitrates, sulphates and chlorides of sodium and
potassium are completely colorless or white, depending on the crystal
size.

Thus any color present is due to impurities, which may, or may not, be
harmless to fish. Many such products sold as fertilizer are
waste-streams/by-products which may contain toxic compounds -- harmless
in the soil, but not necessarily so in the aquarium.

Best,

George


 
> Date: Fri, 15 Dec 2000 14:58:54 -0700
> From: "Chuck Gadd" <cgadd at cfxc_com>
> Subject: Re: Color of K2SO4
> 
> > Can someone refresh my memory. I have a source of potassium and a source of
> > nitrates; one is white and the other ochre (or pink, or coral, or whatever). Which
> 
> KNO3 is white.   KCl (Potassium Chloride) is ochre/pink/coral...
> 
> - --
> Chuck Gadd

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