trichlor tabs

Chlorinating, maintaining the right chlorine levels,
chlorine problems. Dichlor, trichlor, cal hypo, bleach,
granules, chlorine pucks and chlorine sticks.
cyberbryan
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trichlor tabs

Postby cyberbryan » Mon 16 Jul, 2007 17:27

by weight percentage what is the breakdown of a trichlor puck between CYA and CL

thanks


chem geek
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Postby chem geek » Mon 16 Jul, 2007 18:22

This isn't really the right question to ask because the Free Chlorine level is measured in terms of parts-per-million of chlorine gas equivalent whereas the chlorine attached to CYA is three individual chlorine atoms. When Trichlor mixes with water, it produces hypochlorous acid as follows:

Trichlor + 3H2O --> CYA + 3HOCl
Trichlor + Water --> Cyanuric Acid + Hypochlorous Acid (chorine)

What can be said is that 1 pound of Trichlor produces the same CYA level as 8.886 ounces weight of Cyanuric Acid. So that implies that Trichlor is 55.5% CYA by weight.

However, you can't really say that Trichlor is 44.5% chlorine. One pound of Trichlor produces the same Free Chlorine (FC) level as 14.644 ounces weight of chlorine gas so is said to have 91.5% available chlorine. One pound (16 ounces weight) of Trichlor will raise the FC by the same amount as 26.4 ounces weight of Dichlor, 22.7 ounces weight of 65% Cal-Hypo, 14.0 cups of 12.5% chlorinating liquid, or 28.4 cups of 6% bleach.

One 3" Trichlor puck is usually 8 ounces weight or half a pound, though some pucks are 7 ounces or 6 ounces (depending on brand).

Another way of looking at this is that for every 1 ppm FC added by Trichlor you also add 0.6 ppm CYA.

Richard
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Postby Backglass » Mon 16 Jul, 2007 20:53

chem geek wrote:This isn't really the right question to ask because the Free Chlorine level is measured in terms of parts-per-million of chlorine gas equivalent whereas the chlorine attached to CYA is a single chlorine atom. When Trichlor mixes with water, it produces hypochlorous acid as follows:

Trichlor + 3H2O --> CYA + 3HOCl

What can be said is that 1 pound of Trichlor produces the same CYA level as 8.886 ounces weight of Cyanuric Acid. So that implies that Trichlor is 55.5% CYA by weight.

However, you can't really say that Trichlor is 44.5% chlorine. One pound of Trichlor produces the same Free Chlorine (FC) level as 14.644 ounces weight of chlorine gas so is said to have 91.5% available chlorine. One pound (16 ounces weight) of Trichlor will raise the FC by the same amount as 26.4 ounces weight of Dichlor, 22.7 ounces weight of 65% Cal-Hypo, 14.0 cups of 12.5% chlorinating liquid, or 28.4 cups of 6% bleach.

One 3" Trichlor puck is usually 8 ounces weight or half a pound, though some pucks are 7 ounces or 6 ounces (depending on brand).

Another way of looking at this is that for every 1 ppm FC added by Trichlor you also add 0.6 ppm CYA.

Richard


I was going to say all that...but he beat me to it.

Really! :lol:
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