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Unread 01-28-2005, 05:44 AM   #12
Butcher
Thermophile
 
Join Date: May 2001
Location: UK
Posts: 1,064
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The active ingredient in chlorine bleach is Sodium Hypochlorite (NaOCl). This dissolves in water to form hypochlorous acid (HOCl). Hypochlorous acid will split into hydrochloric acid (HCl) and oxygen, and the oxygen will oxide your metals. It's pretty much bad news for a cooling system. If you check chlorine bleach bottles they say not to use on metals because it's highly corrosive to them.
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