Reef Central Online Community - View Single Post - Quick and easy check for kalk saturation?

Randy Holmes-Farley · 10/05/2006, 04:50 AM

Conductivity is a far better gauge. Saturation is about 10.3 mS/cm. I show that here:

The Degradation of Limewater (Kalkwasser) in Air
http://www.reefkeeping.com/issues/20...ture/index.php

pH can be used,but is crude. With pH, I'd always compare to a true saturated solution (say 2 teaspoons in a cup of RO/DI water) and look just at the pH difference. A difference of 0.3 pH units is a factor of 2 in potency.

10/05/2006, 04:50 AM	#2
Randy Holmes-Farley Reef Chemist Join Date: Apr 2001 Location: Arlington, Massachusetts Posts: 86,233	Conductivity is a far better gauge. Saturation is about 10.3 mS/cm. I show that here: The Degradation of Limewater (Kalkwasser) in Air http://www.reefkeeping.com/issues/20...ture/index.php pH can be used,but is crude. With pH, I'd always compare to a true saturated solution (say 2 teaspoons in a cup of RO/DI water) and look just at the pH difference. A difference of 0.3 pH units is a factor of 2 in potency. __________________ Randy Holmes-Farley Current Tank Info: 120 mixed reef