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Re: "Liquid potassium calculations"
- To: Aquatic-Plants at actwin_com
- Subject: Re: "Liquid potassium calculations"
- From: Paul Sears <psears at nrn1_NRCan.gc.ca>
- Date: Mon, 6 May 2002 20:12:14 -0400 (EDT)
- In-reply-to: <200205060748.g467m2A15064 at acme_actwin.com> from "Aquatic Plants Digest" at May 06, 2002 03:48:02 AM
> From: "Matt & Linda Crocker" <crockerm at peak_org>
> Subject: liquid potassium calculations
> I have liquid K2O, 25% potassium and 17% sulfur and I don't know how
> to measure it out. What amount would I add to a 60g tank to get to
The first question is what you actually have there. It definitely
isn't "K2O" - that is an artefact of the obsolete analysis numbers given
for fertilisers. With potassium and sulphur there, I would wonder if it
might contain potassium sulphate, but that is nowhere near soluble enough in
water to give 25% potassium, and the K/S ratio is way off.
60 U.S. gallons is about 230 litres, so you would need 4.6 grams
of potassium to get there. I find the "25%" very difficult to believe
(in a liquid), so I don't think it is sufficient just to multiply the
4.6 grams by 4. I think some more investigation of this stuff is called
Paul Sears Ottawa, Canada