linus
Joined: 05 Sep 2007
Posts: 1
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 Posted: Wed Sep 05, 2007 6:44 pm Post subject: Re: Exposing Bleach to Air over time Equation? |
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[quote="Sempy!"]Hi there
I was posed this question by a chemistry teacher awhile back.
What would happen to the concentration of hypochlorite in over time?
I know it decreases... but I don't know how to explain this in a chemical equation.
Any help would be greatly appreciated
Cheers[/quote]
Ca(OH)2 + Cl2 <--> CaCl(ClO) + H2O
Calcium hydroxide combines with chlorine to produce
calcium chloride hypochlorite (bleaching powder) and water.
Over time , water in the air forces the reverse reaction, liberating
chlorine gas (which you can smell).
There are other hypochlorite bleaching agents, but I think this is
the basic answer to your question. |
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