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Re: CO2 saturation concentrations
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To: Aquatic-Plants at actwin_com
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Subject: Re: CO2 saturation concentrations
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From: psears at NRCan_gc.ca (Paul Sears)
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Date: Wed, 29 May 1996 13:37:30 -0400 (EDT)
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In-Reply-To: <199605290739.DAA26846 at looney_actwin.com> from "Aquatic-Plants-Owner at ActWin_com" at May 29, 96 03:39:02 am
> From: George Booth <booth at hpmtlgb1_lvld.hp.com>
>
> > From: "Olive K. Charlsey" <achaudh at emory_edu>
> > Date: Tue, 28 May 1996 08:41:57 -0400 (EDT)
> >
> > CO2 saturation at room temperature and pressure is probably
> > around 800 mg/l. In my tank, the [CO2] is around 25 mg/l.
>
> I think it's more likely around 0.46 mg/l (theorectical) and 2-3 mg/l
> in a typical tank without CO2 injection due to respiration.
>
> George in Definitely Damp Colorado
>
I think the concentration above (800 ppm) was supposed to refer to the
water coming out of a very! efficient CO2 reactor. That is, it was the
concentration corresponding to a CO2 pressure of 1 atmosphere, instead
of the 0.0003 atm or so partial pressure in the air. I make the number rather
higher than 800 ppm, but that is definitely the in the right ballpark.
Paul Sears Ottawa, Canada