Notices
Results 1 to 24 of 24

Thread: Pure Water

  1. #1 Pure Water 
    Moderator Moderator AlexP's Avatar
    Join Date
    Jul 2006
    Location
    NY
    Posts
    1,838
    I read that pure water is toxic to humans, including to the point of death. So my question is, how and why is this?


    Reply With Quote  
     

  2.  
     

  3. #2 Re: Pure Water 
    Forum Professor
    Join Date
    May 2005
    Posts
    1,893
    Quote Originally Posted by Chemboy
    I read that pure water is toxic to humans, including to the point of death. So my question is, how and why is this?
    It doesn't have any ions in it, so eventually you will throw the ion concentrations in your body off too far. But you have to drink a lot of it before it became a problem.

    Side note: pure water tastes very strange.


    Reply With Quote  
     

  4. #3  
    Forum Isotope Zelos's Avatar
    Join Date
    Jun 2006
    Posts
    2,755
    yepp, but even pure water is ionized fast by the present of CO<sub>2</sub> turning to H<sub>2</sub>CO<sub>3</sub>
    I am zelos. Destroyer of planets, exterminator of life, conquerer of worlds. I have come to rule this uiniverse. And there is nothing u pathetic biengs can do to stop me

    On the eighth day Zelos said: 'Let there be darkness,' and the light was never again seen.

    The king of posting
    Reply With Quote  
     

  5. #4 Re: Pure Water 
    Forum Freshman
    Join Date
    May 2006
    Posts
    5
    Quote Originally Posted by Chemboy
    I read that pure water is toxic to humans, including to the point of death. So my question is, how and why is this?
    I know that some people drink distilled water (pure) for years.
    Though it was discovered recently that it may lead to some health problems. As far as I recall it was something with bones.
    But you should drink it for a really long time to get hurt.
    Reply With Quote  
     

  6. #5  
    Forum Ph.D.
    Join Date
    Feb 2005
    Location
    Dublin, Ireland
    Posts
    945
    Side note: pure water tastes very strange
    perhaps its the no ions which give it very little taste....? think bout it?
    Stumble on through life.
    Feel free to correct any false information, which unknown to me, may be included in my posts. (also - let this be a disclaimer)
    Reply With Quote  
     

  7. #6  
    Moderator Moderator AlexP's Avatar
    Join Date
    Jul 2006
    Location
    NY
    Posts
    1,838
    Quote Originally Posted by goodgod3rd
    Side note: pure water tastes very strange
    perhaps its the no ions which give it very little taste....? think bout it?
    yeah, it is the ions that give it its taste, so no ions = no taste.
    Reply With Quote  
     

  8. #7  
    Moderator Moderator AlexP's Avatar
    Join Date
    Jul 2006
    Location
    NY
    Posts
    1,838
    Something I thought of... Is pure water more or less concentrated than "regular" water? And if so, would it be possible that it would push more ions into or out of a cell than were supposed to be, and this would mess things up? By osmosis I mean. Just a thought, I'm not sure about that...
    Reply With Quote  
     

  9. #8  
    墨子 DaBOB's Avatar
    Join Date
    Jun 2006
    Posts
    1,674
    Even if the water does not have ions it is still a polar molecule and will react with other things. For example you could have pure water and eat a peice of toast. So I guess, ya like they said it could throw things off balance if that was like all you drank (and ate) for a while. Also, you could drown in it.
    Do not try and bend the spoon. That's impossible. Instead... only realize the truth. There is no spoon. Then you'll see that it is not the spoon that bends, it is only yourself. -Spoon Boy
    Reply With Quote  
     

  10. #9  
    Forum Freshman monaro_waky's Avatar
    Join Date
    Aug 2006
    Location
    Australia
    Posts
    33
    By pure water do you mean distiled water, because even then I think there are still other minerals in it.
    There are no such things as applied sciences, only applications of science.
    Louis Pasteur (1822 - 1895)
    Reply With Quote  
     

  11. #10  
    Forum Isotope Zelos's Avatar
    Join Date
    Jun 2006
    Posts
    2,755
    distiled is acidy becuase of the present of H2CO3
    I am zelos. Destroyer of planets, exterminator of life, conquerer of worlds. I have come to rule this uiniverse. And there is nothing u pathetic biengs can do to stop me

    On the eighth day Zelos said: 'Let there be darkness,' and the light was never again seen.

    The king of posting
    Reply With Quote  
     

  12. #11  
    Forum Freshman SinMan's Avatar
    Join Date
    Aug 2006
    Location
    Dordrecht, The Netherlands
    Posts
    35
    I think that drinking pure or (distilled) water is not a problem if you ingest somehow the needed minerals by eating vegetables or so. It will not get all the minerals (electrolytes) out of your cells because the water will not flow in its own in your veins replacing the blood or something. So drinking pure water is not an issue.

    On the other hand, there is something known as water intoxication which occurs when much water is ingested in a short period without replinishing electrolytes.





    references:
    http://en.wikipedia.org/wiki/Distilled_water
    http://www.erowid.org/culture/health...oisoning.shtml
    Q:What's better than being perfect? A:Accepting yourself!
    Reply With Quote  
     

  13. #12  
    Forum Sophomore
    Join Date
    Aug 2006
    Location
    gardengrove California
    Posts
    139
    really pure water is H2CO3?
    Reply With Quote  
     

  14. #13  
    Forum Freshman SinMan's Avatar
    Join Date
    Aug 2006
    Location
    Dordrecht, The Netherlands
    Posts
    35
    Quote Originally Posted by iLOVEscience
    really pure water is H2CO3?
    nope, but Zelos means that when CO2 in the air dissolves in water it can form carbon acid according to the equilibrium: CO2+H2O <--> H2CO3. This reaction is not so effective since there is not so much CO2 in the air.

    Pure water is simply H2O
    Q:What's better than being perfect? A:Accepting yourself!
    Reply With Quote  
     

  15. #14  
    Forum Sophomore
    Join Date
    Aug 2006
    Location
    gardengrove California
    Posts
    139
    haha i c i c
    Reply With Quote  
     

  16. #15  
    Forum Professor
    Join Date
    May 2005
    Posts
    1,893
    Usually when people say "pure" water they mean water that has a resistance above 18 mega ohms/cubic cm and has had all neutral suspended particles removed. There's nothing in it - no ions, no minerals, nothing. You have to store it in an air-tight container to keep atmospheric gasses from dissolving into it.
    Reply With Quote  
     

  17. #16  
    Forum Isotope Zelos's Avatar
    Join Date
    Jun 2006
    Posts
    2,755
    yepp that is what i meant, sorry should have written more. sorry my misstage. but all he said after is correct
    I am zelos. Destroyer of planets, exterminator of life, conquerer of worlds. I have come to rule this uiniverse. And there is nothing u pathetic biengs can do to stop me

    On the eighth day Zelos said: 'Let there be darkness,' and the light was never again seen.

    The king of posting
    Reply With Quote  
     

  18. #17  
    Moderator Moderator AlexP's Avatar
    Join Date
    Jul 2006
    Location
    NY
    Posts
    1,838
    Quote Originally Posted by monaro_waky
    By pure water do you mean distiled water, because even then I think there are still other minerals in it.
    By pure I mean a bunch of H2O molecules. Nothing else.

    Oh, and sorry if that's messed up at all in any way, it won't let me preview...
    Reply With Quote  
     

  19. #18  
    Forum Freshman
    Join Date
    Aug 2006
    Posts
    32
    There probably wouldn't be much, if not any damage from small ammounts pure water. There wouldn't be anything in the water but water. It would be missing some minerals the body uses, but as long as not alot is induced, it wouldn't through off the balance.
    Reply With Quote  
     

  20. #19  
    Moderator Moderator AlexP's Avatar
    Join Date
    Jul 2006
    Location
    NY
    Posts
    1,838
    yeah, that makes sense. i couldn't really figure out how pure water would actually harm you, which is why i asked in the first place, so i guess all of these answers really make sense. it IS just water after all, so i guess there's nothing specifically about it that harms, just the fact that it lacks the minerals and stuff that most water has... thanks everyone
    Reply With Quote  
     

  21. #20  
    Moderator Moderator AlexP's Avatar
    Join Date
    Jul 2006
    Location
    NY
    Posts
    1,838
    ok, resurrecting this topic. the reason pure water is dangerous is because it messes up your concentration gradients. the pure water would be hypotonic to your cells and thus would diffuse into the cells, causing them to lyse. still don't know if small amounts would be dangerous or not. someone correct me if i'm wrong, but i think it definitely makes sense
    Reply With Quote  
     

  22. #21  
    Forum Bachelors Degree The P-manator's Avatar
    Join Date
    Nov 2005
    Location
    Toronto
    Posts
    474
    I tried drinking the water that comes out of my fuel cell... not very tasty. And as for the ions bringing the taste I always thought it was the minerals that brought the taste. Or are they the same thing?
    Pierre

    Fight for our environment and our habitat at www.wearesmartpeople.com.
    Reply With Quote  
     

  23. #22  
    Moderator Moderator AlexP's Avatar
    Join Date
    Jul 2006
    Location
    NY
    Posts
    1,838
    Quote Originally Posted by The P-manator
    I tried drinking the water that comes out of my fuel cell... not very tasty. And as for the ions bringing the taste I always thought it was the minerals that brought the taste. Or are they the same thing?
    what is this fuel cell for? i believe the minerals are where the ions come from... for example, CaCl2, which is in some bottled water, will give you Ca+2 and 2Cl-.....
    Reply With Quote  
     

  24. #23  
    Guest
    Quote Originally Posted by The P-manator
    I tried drinking the water that comes out of my fuel cell... not very tasty.

    Is that what you youngsters call it these days! - it just used to be a called a 'todger'.
    Reply With Quote  
     

  25. #24  
    Forum Bachelors Degree The P-manator's Avatar
    Join Date
    Nov 2005
    Location
    Toronto
    Posts
    474
    Hydrogen for the future. I have been experimenting with a model fuel cell car.
    Pierre

    Fight for our environment and our habitat at www.wearesmartpeople.com.
    Reply With Quote  
     

Bookmarks
Bookmarks
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •