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Author Topic: What would happen if I did my washing in heavy water?  (Read 6994 times)

Offline rhade

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If I were to use heavy water (D20, the kind used in certain types of nuclear reactor), for washing, drinking and other day to day activities, what, if anything, would be the effects? Would it behave differently to H2O?

Mod edit - Formatted the subject as a question - please do this to help keep the forum tidy and easy to navigate - thanks!
« Last Edit: 28/10/2008 10:51:22 by BenV »


 

Offline RD

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Re: What would happen if I did my washing in heavy water?
« Reply #1 on: 22/10/2008 22:15:24 »
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a 70 kg human containing 50 kg of water and drinking 3 liters of pure heavy water per day, would need to do this for almost 5 days to reach 25% deuteration, and for about 11 days to approach 50% deuteration. Thus, it would take a week of drinking nothing but pure heavy water for a human to begin to feel ill, and 10 days to 2 weeks (depending on water intake) for severe poisoning and death.
http://en.wikipedia.org/wiki/Heavy_water#Toxicity_in_humans


Don't water your plants with it either...
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Plants stop growing and seeds do not germinate when given only heavy water, because heavy water stops eukaryotic cell division.
http://en.wikipedia.org/wiki/Heavy_water#Effect_on_biological_systems


I don't think the enzymes in biological washing powder would work in heavy water.
« Last Edit: 22/10/2008 22:52:21 by RD »
 

Offline Karen W.

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Re: What would happen if I did my washing in heavy water?
« Reply #2 on: 22/10/2008 23:10:36 »
what is heavy water?
 

Offline RD

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Re: What would happen if I did my washing in heavy water?
« Reply #3 on: 22/10/2008 23:25:58 »
Heavy water is made using an isotope of hydrogen called deuterium whose nucleus contains a proton and a neutron,
the nucleus of hydrogen normally only contains a proton, so deuterium is heavier than hydrogen,
hence the name "heavy hydrogen".
 

Offline rhade

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What would happen if I did my washing in heavy water?
« Reply #4 on: 29/10/2008 14:37:52 »
Deuterium is about one atom in every 6500 of naturally occurring hydrogen, Karen. It's used in certain types of reactor 'cause fewer of the neutrons from the nuclear material are lost in the water, making it more efficient. With a heavy water reactor, you can get away without an expensive uranium enrichment plant.
 

Offline BabyDoll

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What would happen if I did my washing in heavy water?
« Reply #5 on: 09/11/2008 11:24:30 »
Water that comes out of desalination plants are all "heavy". What will that do to your skin & hair if you wash yourself with desalinated water?

What happens if I shower with sea water?
 

Offline Madidus_Scientia

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What would happen if I did my washing in heavy water?
« Reply #6 on: 09/11/2008 12:28:31 »
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Water that comes out of desalination plants are all "heavy".

I doubt that. Perhaps it might have a slightly higher ratio of heavy water molecules, but if it was all heavy water then it would be useless for reasons RD mentioned.

 

Offline Bored chemist

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What would happen if I did my washing in heavy water?
« Reply #7 on: 09/11/2008 15:40:04 »
Heavy water is expensive because it's quite difficult to separate from normal water. If a desalination plant would do the job then that's what they would use.

Most soap doesn't lather properly in salt water.
 

blakestyger

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What would happen if I did my washing in heavy water?
« Reply #8 on: 09/11/2008 21:17:10 »
Heavy water is expensive because it's quite difficult to separate from normal water.

That's why the Germans invaded Norway in WW2 - so they had access to cheap hydroelectricity to separate the D2O for their bomb project. It spawned a silly film too.
 

Ethos

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What would happen if I did my washing in heavy water?
« Reply #9 on: 11/03/2009 04:46:19 »
If I were to use heavy water (D20, the kind used in certain types of nuclear reactor), for washing, drinking and other day to day activities, what, if anything, would be the effects? Would it behave differently to H2O?Actually, a very small percentage of the water you use everyday contains some heavy water. So in essence, you are washing in, and drinking it all the time..........Go figure????

Mod edit - Formatted the subject as a question - please do this to help keep the forum tidy and easy to navigate - thanks!
 

blakestyger

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What would happen if I did my washing in heavy water?
« Reply #10 on: 11/03/2009 09:23:00 »
It would drip-dry quicker.
 

Offline lightarrow

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What would happen if I did my washing in heavy water?
« Reply #11 on: 11/03/2009 16:57:41 »
If I were to use heavy water (D2O, the kind used in certain types of nuclear reactor), for washing, drinking and other day to day activities, what, if anything, would be the effects? Would it behave differently to H2O?
About washing, it would drip slightly faster (density = 1.11 g/cm3) but it would evaporate slightly slower (heat of vaporization slighltly greater).
 

Offline tangoblue

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What would happen if I did my washing in heavy water?
« Reply #12 on: 11/03/2009 19:54:44 »
try it and see what happens.
 

Offline Bored chemist

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What would happen if I did my washing in heavy water?
« Reply #13 on: 12/03/2009 19:55:00 »
Only if you pay for the D2O.
 

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What would happen if I did my washing in heavy water?
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