Re: [Killietalk] TDS vs. Conductivity

[Barry Cooper <bjc3 at centurytel_net>]

Yes, because dissolved CO2 is carbonic acid, which ionized to form 
bicarbonate/carbonate and H+. However, other gases like oxygen and 
nitrogen don't do so and therefore won't contribute. The amount of 
dissolved nitrogen at normal temperature and pressure would be minimal 
anyway. None of these gases contributes to true TDS but CO2 contributes 
to conductivity.

Barry

Barry J. Cooper
Sweet Home, OR 97386



David Lains wrote:

>Hi Barry 
>
>Gases like Carbon dioxide can effect the TDS/conductivity of the water,
>correct?
>
>Best fishes
>David
>
>-----Original Message-----
>From: killietalk-bounces+david=zfin_org at aka.org
>[mailto:killietalk-bounces+david=zfin_org at aka.org] On Behalf Of Barry Cooper
>Sent: Thursday, February 02, 2006 4:48 PM
>To: killifish discussion list
>Subject: Re: [Killietalk] TDS vs. Conductivity
>
>"TDS is really every thing dissolved in the water, except for gases and
>other liquids like alcohol, a popular solute, but not a solid
>;-)"
>Barry
>
>
>Join the AKA at http://aka.org/modules/tinycontent0/index.php?id=9
>Archives are at http://fins.actwin.com/killietalk/
>Modify your subscription at http://www.actwin.com/mailman/listinfo.cgi/killietalk
>
>
>  
>
Join the AKA at http://aka.org/modules/tinycontent0/index.php?id=9
Archives are at http://fins.actwin.com/killietalk/
Modify your subscription at http://www.actwin.com/mailman/listinfo.cgi/killietalk