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-   -   Salifert Calcium: “a clear blue color” (http://www.reefcentral.com/forums/showthread.php?t=2663002)

five.five-six 12/31/2017 05:25 PM

Salifert Calcium: “a clear blue color”
 
So, what exactly is ment by “a clear blue color”?

Generaly it goes from pink to blue-purple, then hazy blue then clear.

Today blue purple = 0.25 375ppm
Hazy blue = 0.22 380PPM
Clear blue = 0.20 400PPM

bertoni 12/31/2017 05:46 PM

My procedure was to add drops (fairly slowly towards the end of the titration) and swirl well for a few seconds, then stop when the last purple disappears. I think a few seconds between drops was fine for the Salifert kit.

timnem70 12/31/2017 05:48 PM

Goes from a Dirty purple to the FIRST sign of blue. That's where you stop. One drop at a time as you near the reaction

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five.five-six 01/01/2018 08:16 AM

Quote:

Originally Posted by bertoni (Post 25318086)
My procedure was to add drops (fairly slowly towards the end of the titration) and swirl well for a few seconds, then stop when the last purple disappears. I think a few seconds between drops was fine for the Salifert kit.

That makes sense and seems what I have done in the past.


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