Shelf life of liquid chlorine

[maxhouse]

Anticipating the end of the season here in the northeast I have a five gallon excess of liquid chlorine (12.5%).
Can I store this for any length of time or will it loose its oxidation qualities?

Thanks, Max

 

[JoyfulNoise]

Anticipating the end of the season here in the northeast I have a five gallon excess of liquid chlorine (12.5%).
Can I store this for any length of time or will it loose its oxidation qualities?

Thanks, Max

It'll be salt, lye and water by the time you use it next year. The high % LC degrades pretty quickly. It should be typically used within 2-3 months of the date code.

If it's closed, will a local pool store take it back?


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[maxhouse]

Thanks Matt.

 

[JoyfulNoise]

See this this page for half life info.


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[dfahrion]

I had 4 gallons extra last year which I stored over the winter. While they were not quite the same as new 12.5% in the spring, they were still more effective than 8%, I believe they were close to 10%. The key is keeping them cold, they spent most of the winter in the shed, unless sub-zero weather threatened, then they moved to our unheated but attached garage which stays 30-40 when it is really cold out. The half life is a lot longer for cold temps.

 

[YippeeSkippy]

You can use them around the house (laundry, cleaning needs) but more sparingly than you do the normal 8.25%.

 

[chem geek]

See this post for tables of breakdown for 12.5% chlorinating liquid and 8.25% bleach. This is for high-quality product. Some brands may break down more quickly if they are not careful in using water free of metals.