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jck

LifeTime Supporter
May 23, 2010
101
How long will chlorine last 6% 10.5 & 12. I know I saw it here so0mewhere just cant fined..
 

257WbyMag

TFP Expert
LifeTime Supporter
Feb 23, 2008
5,061
Denton, TX
It varies. What you need to remember is that the higher the concentration of sodium hypochlorite there is in solution, the less stable it is. So, storing 6% and 12.5% side by side, the 12.5% will lose its strength a little faster. If you keep it in a cool and dark place, the 12.5% will last you a few months.
 

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