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Thread: Storage for Liquid Chlorine over Fall and Winter Months

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    Catanzaro's Avatar
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    Storage for Liquid Chlorine over Fall and Winter Months

    I probably have about 20 gallons of 12.5% left (Now at about 10% concentration). The current temperature is around 75*. By next month, the temperatures will be dropping quickly, especially during the evening outside. Should I store the liquid chlorine down in the basement (covered up) or in the shed, where clearly the outside temperatures will drop and stay very low in the winter, hopefully preserving some of the concentration. The basement usually is usually no colder than 60* in the dead of winter, while outside we go from 40's to 60's. Thank you.

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    JoyfulNoise's Avatar
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    Re: Storage for Liquid Chlorine over Fall and Winter Months

    The colder the storage the better. Outside in a shed would be good as long as you can keep it from freezing solid and damaging the containers.


    Matt
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    Mod Squad tim5055's Avatar
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    Re: Storage for Liquid Chlorine over Fall and Winter Months

    Well, here are the freezing points from Chem Geek.

    Quote Originally Posted by chem geek View Post
    The freezing point depression of a 12% Sodium Hypochlorite solution (which also has 9.4% salt due to the manufacturing process of chlorine) is 15.3C or 27F so the freezing point is -15.3C or 5F. So unless you are expecting sustained temperatures well below freezing (i.e. closer to 5 degrees Fahrenheit or below), then it should be safe.

    For 8.25% bleach, this is 9.7C = 17.4F.

    The freezing point for 6% Sodium Hypochlorite as found in Clorox Regular and most Ultra brands of bleachis -9.7C or 14.6F

    The freezing point of full-strength Muriatic Acid (31.45% Hydrochloric Acid) is -46C (-50.8F)(for Hasa)

    The freezing point of half-strength Muriatic Acid (say, 15% Hydrochloric Acid) is -18C (-0.4F)

    Richard
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    Re: Storage for Liquid Chlorine over Fall and Winter Months

    Outside temps could be that low , but no more than a few days. I will start with shed and move to garage if need be as the temperature is about 50F, if outside is that cold. This will be an interesting experiment to see if shed , which is not insulated will stay a few degrees warmer then outside. Will post results in spring. We usually do not get to 5 F. Thanks
    14,700 gallons IG Pool Vinyl Liner - Octal Circulation System
    Hayward Pro-Series 350 LB. Sand Filter Model # S270T - 2" Plumping
    Hayward CL2002 Chlorinator - Hayward Super Pump 2 HP Model # k48m2n111
    Hayward AQR9 SWG 25K Salt Cell & TF-100 Test Kit + Speed Stir
    Gulfstream HE125RA - 117K BTU Heat Pump - Date of Build is 11-2013

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