What happens when sodium carbonate oxyperhydrate is dumped into a pool?

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Offline Chemkid

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Hi anyone to comment what happens when 5 kg of sodium carbonate oxyperhydrate is dumped into a pool?

chemkid
« Last Edit: 01/07/2008 11:16:56 by BenV »
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Offline Chemistry4me

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Umm... will it blow up and explode and kill everybody within a 10 meter radius?

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Offline lightarrow

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Hi anyone to comment what happens when 5 kg of sodium carbonate oxyperhydrate is dumped into a pool?
Nothing particularly strange happens, it simply releases oxygen when mixed with water:
2Na2CO4 → 2Na2CO3 + O2
Notice that the solution becomes alcaline, so you would have to correct the pH.
However it's not so effective as chlorine in disinfect and cleaning the pool's water.

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Offline Chemistry4me

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Whoa! I didn't know such thing existed (Na2CO4).

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Offline lightarrow

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Whoa! I didn't know such thing existed (Na2CO4).
It's also used as a substitute of perborate in whitening washed tissues.

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Offline Bored chemist

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Whoa! I didn't know such thing existed (Na2CO4).
I'm not at all sure it does.
The "percarbonate" used in washing etc is not really a percarbonate. As the thread title indicates it's a compound of H2O2 and Na2CO3 that is like the hydrate; the stuff has hydrogen peroxide of crystalisation.
Please disregard all previous signatures.

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Offline Chemistry4me

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So you think it's like Na2CO3xH2O2? [???]

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Offline Bored chemist

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Yes.
http://en.wikipedia.org/wiki/Sodium_percarbonate
Some of the peroxide decomposes as it disolves.
Please disregard all previous signatures.

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Offline lightarrow

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Whoa! I didn't know such thing existed (Na2CO4).
I'm not at all sure it does.
The "percarbonate" used in washing etc is not really a percarbonate. As the thread title indicates it's a compound of H2O2 and Na2CO3 that is like the hydrate; the stuff has hydrogen peroxide of crystalisation.
I think that you are correct. Italian wiki this time has deceived me:
http://it.wikipedia.org/wiki/Percarbonato_di_sodio
 [:(!]
I'll try to modify it.

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Offline Chemistry4me

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So what? It won't blow up and explode and kill everybody within a 10 meter radius?

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Offline lancenti

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No, if you want something that explodes when it comes in contact with water you'll want Group I Metals Period 5 onwards.

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Offline Chemistry4me

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So what do you think will happen lancenti?

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Offline lightarrow

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So what? It won't blow up and explode and kill everybody within a 10 meter radius?
No.
Ok, it's not 10 meters, just 9.90  [;)]

No, no, I'm joking, it doesn't happen anithing (apart maybe some bubbles of O2).
« Last Edit: 02/02/2009 12:16:49 by lightarrow »