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Science Different types of water, Differences? O___O

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highwind85
post Sep 28 2010, 03:39 PM

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QUOTE(zstan @ Sep 28 2010, 03:31 PM)
but that isn't really really pure distilled water.

those distilled water u get in labs are distilled and condensed for at 3-4 times, hence it is 100% free of minerals and other contaminants.

when famine breakouts, i doubt people have the time and energy to conduct distillation a few times.

and it does not absorb minerals from the body la.  doh.gif  it causes osmotic imbalance which results in cells bursting.
*
distilled and condensed just once i guess? coz the steam will touch the cold coil, trickle down the tubing into the container you used to store your distilled water..
There's another purer type of distilled water called double distilled water...

This post has been edited by highwind85: Sep 28 2010, 04:04 PM
Awakened_Angel
post Sep 28 2010, 03:58 PM

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QUOTE(zstan @ Sep 28 2010, 04:31 PM)
and it does not absorb minerals from the body la.  doh.gif  it causes osmotic imbalance which results in cells bursting.
*
I am from Engineering background.. not medical.. to me, the flow of substance is absorb

it is like people argue about the terms for place to urinate... toilet? washing closet? lavatory? aint it the same? but use differently in different place


Added on September 28, 2010, 4:06 pm
QUOTE(zstan @ Sep 28 2010, 04:31 PM)
but that isn't really really pure distilled water.

those distilled water u get in labs are distilled and condensed for at 3-4 times, hence it is 100% free of minerals and other contaminants.

when famine breakouts, i doubt people have the time and energy to conduct distillation a few times.

*
Yes... I am talking about possibility of drinking distilled water as in general.

and yes too to your assumptions that people do not have the time and energy to do distillation several times...

100% maybe required for medical purposes... but for survival purposes? not quite... and what does 95% pure and 99% pure have to do with keeping me hydrated....

This post has been edited by Awakened_Angel: Sep 28 2010, 04:07 PM
highwind85
post Sep 28 2010, 04:08 PM

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QUOTE(Awakened_Angel @ Sep 28 2010, 03:58 PM)
I am from Engineering background.. not medical.. to me, the flow of substance is absorb
*
read on osmosis and you'll understand what zstan is saying...
an analogy is drinking salt water...
when you drink salt water, you'll feel thirsty due to salt water has higher osmotic pressure (hypertonic) than your body..
thus water (read: not mineral) flow out of your body...making you feel thirsty...

zstan
post Sep 28 2010, 04:20 PM

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QUOTE(Awakened_Angel @ Sep 28 2010, 03:58 PM)
I am from Engineering background.. not medical.. to me, the flow of substance is absorb

it is like people argue about the terms for place to urinate... toilet? washing closet? lavatory? aint it the same? but use differently in different place


Added on September 28, 2010, 4:06 pm

Yes... I am talking about possibility of drinking distilled water as in general.

and yes too to your assumptions that people do not have the time and energy to do distillation several times...

100% maybe required for medical purposes... but for survival purposes? not quite... and what does 95% pure and 99% pure have to do with keeping me hydrated....
*
ok. so how do you justify that the distilled water will 'absorb the minerals' when the water itself is already in the bloodstream?


TS[PF] T.J.
post Sep 28 2010, 07:09 PM

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QUOTE(zstan @ Sep 28 2010, 03:31 PM)
where does your distilled water comes from if may i ask?


Added on September 28, 2010, 3:34 pm
but that isn't really really pure distilled water.

those distilled water u get in labs are distilled and condensed for at 3-4 times, hence it is 100% free of minerals and other contaminants.

when famine breakouts, i doubt people have the time and energy to conduct distillation a few times.

and it does not absorb minerals from the body la.  doh.gif  it causes osmotic imbalance which results in cells bursting.
*
I work in a lab... I have ample of deionized water and distilled water haha biggrin.gif
I don't think its dangerous to drink distilled water, as long as we don't replace our everyday drinking water with distilled water. Normal water has more minerals, even though minute, which may be good for us nod.gif


Added on September 28, 2010, 7:11 pm
QUOTE(highwind85 @ Sep 28 2010, 03:39 PM)
distilled and condensed just once i guess? coz the steam will touch the cold coil, trickle down the tubing into the container you used to store your distilled water..
There's another purer type of distilled water called double distilled water...
*
Yeap, d dH2O is even purer, but quite expensive haha biggrin.gif
Tried both dH20 and deionized water for PCR, both works laugh.gif


Added on September 28, 2010, 7:19 pm
QUOTE(zstan @ Sep 28 2010, 04:20 PM)
ok. so how do you justify that the distilled water will 'absorb the minerals' when the water itself is already in the bloodstream?
*
The human's digestive tract isn't exactly "empty", as in there's a lot of other excretions i.e mucus, HCL acid, bile etc., which will offset the hypotonicity of the distilled water once consumed, regardless of how pure the water is... which probably explained why I'm still alive hahaha laugh.gif

This post has been edited by [PF] T.J.: Sep 28 2010, 07:19 PM
Awakened_Angel
post Sep 28 2010, 07:31 PM

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QUOTE(zstan @ Sep 28 2010, 05:20 PM)
ok. so how do you justify that the distilled water will 'absorb the minerals' when the water itself is already in the bloodstream?
*
It is my assumptions... further discussions from medical POV will only shed my ignorant biggrin.gif
SUSslimey
post Sep 28 2010, 08:15 PM


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QUOTE(PF T.J. @ Sep 28 2010, 07:09 PM)
» Click to show Spoiler - click again to hide... «

The human's digestive tract isn't exactly "empty", as in there's a lot of other excretions i.e mucus, HCL acid, bile etc., which will offset the hypotonicity of the distilled water once consumed, regardless of how pure the water is... which probably explained why I'm still alive hahaha  laugh.gif
*
nothing to do with the digestive tract. it's more to the influence of increasing amount of electrolyte free fluid to the interstitial space, hence, it becomes hypotonic relative to the fluid in the cell and then osmosis blablabla.....you know.
you are alive because the diet of most urban people(which likely include you) is actually have excess in sodium and other elements. which together with the kidneys compensate quite well. not that i am encouraging you to eat more salty food or drink more distilled water though laugh.gif

This post has been edited by slimey: Sep 28 2010, 08:16 PM
TS[PF] T.J.
post Sep 28 2010, 08:44 PM

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QUOTE(slimey @ Sep 28 2010, 08:15 PM)
nothing to do with the digestive tract. it's more to the influence of increasing amount of electrolyte free fluid to the interstitial space, hence, it becomes hypotonic relative to the fluid in the cell and then osmosis blablabla.....you know.
you are alive because the diet of most urban people(which likely include you) is actually have excess in sodium and other elements. which together with the kidneys compensate quite well. not that i am encouraging you to eat more salty food or drink more distilled water though  laugh.gif
*
Well, the hypotonicity of the water will be decreased when mixed with other "stuffs" within the digestive tract, upon absorption, only then what you say will happen nod.gif
LOL.... Even if I don't eat excessive Sodium also won't matter kua... osmoregulation via aldosterone will occur anyway laugh.gif
I eat a lot of vegetables (non-salty) to save money hahaha laugh.gif
SUSslimey
post Sep 28 2010, 08:51 PM


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QUOTE(PF T.J. @ Sep 28 2010, 08:44 PM)
Well, the hypotonicity of the water will be decreased when mixed with other "stuffs" within the digestive tract, upon absorption, only then what you say will happen  nod.gif
LOL.... Even if I don't eat excessive Sodium also won't matter kua... osmoregulation via aldosterone will occur anyway  laugh.gif
I eat a lot of vegetables (non-salty) to save money hahaha  laugh.gif
*
it so happens that the other stuff in the digestive tract you mentioned also comes from the body........so net effect is still the decrease of the concentration of the electrolyte.
sodium may not have to be the salt we use in our food. there's so many "hidden" source of sodium.
and yes.....the body is very good in osmoregulation.......there's a limit to it but no worries.....there's many signs the body will tell you when the limit of the osmoregulation is near.
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post Sep 28 2010, 09:27 PM

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QUOTE(slimey @ Sep 28 2010, 08:51 PM)
it so happens that the other stuff in the digestive tract you mentioned also comes from the body........so net effect is still the decrease of the concentration of the electrolyte.
sodium may not have to be the salt we use in our food. there's so many "hidden" source of sodium.
and yes.....the body is very good in osmoregulation.......there's a limit to it but no worries.....there's many signs the body will tell you when the limit of the osmoregulation is near.
*
You are scaring me ar dude haha laugh.gif
I should turn into vegetarian laugh.gif

dkk
post Sep 29 2010, 12:17 AM

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Pipe water, rain water, distilled water, deionized water. All drinkable. All are hypotonic. Drinking hypotonic liquids does not cause your cells to burst.

Nobody pees pure distilled water, so minerals are leaving your body all the time. If you switch from drinking pipe water to distilled water, you're reducing your mineral intake, but only very slightly. No pipe water contains even remotely the same concentration of minerals as urine.

You get minerals from your food too. In fact, practically all your mineral intake comes in your food.

QUOTE
A WHO Expert Workshop on nutritional components of drinking-water was held in November 2003 in Rome. The result of the workshop was a report on “Nutrient minerals in drinking water and the potential health consequences of long-term consumption of demineralized and remineralized and altered mineral content drinking waters.” The workshop concluded that drinking-water was generally not a significant contributor to daily dietary nutrition but could be important in cases of dietary insufficiency. Calcium and magnesium in hard water have been shown to be associated with reduced ischaemic cardiac mortality in hard water areas. Stabilization of desalinated waters should include the introduction of adequate calcium and magnesium where practical. It was concluded that drinking-water may be important as a source of skeletal fluoride, and it has been suggested that there is a minimum level of fluoride in water below which net loss of fluoride from the skeleton may occur.


http://www.who.int/water_sanitation_health...s/en/index.html


highwind85
post Sep 29 2010, 09:12 AM

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QUOTE(dkk @ Sep 29 2010, 12:17 AM)
Pipe water, rain water, distilled water, deionized water. All drinkable. All are hypotonic. Drinking hypotonic liquids does not cause your cells to burst.

Nobody pees pure distilled water, so minerals are leaving your body all the time. If you switch from drinking pipe water to distilled water, you're reducing your mineral intake, but only very slightly. No pipe water contains even remotely the same concentration of minerals as urine.

You get minerals from your food too. In fact, practically all your mineral intake comes in your food.
http://www.who.int/water_sanitation_health...s/en/index.html
*
yes..minerals leave our body all the time...due too the regulations of the ions in our body, minerals not taken in by the cells but not due to the reasons Awakened_angel given..
zstan
post Sep 29 2010, 09:55 AM

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QUOTE(dkk @ Sep 29 2010, 12:17 AM)
Pipe water, rain water, distilled water, deionized water. All drinkable. All are hypotonic. Drinking hypotonic liquids does not cause your cells to burst.

Nobody pees pure distilled water, so minerals are leaving your body all the time. If you switch from drinking pipe water to distilled water, you're reducing your mineral intake, but only very slightly. No pipe water contains even remotely the same concentration of minerals as urine.

You get minerals from your food too. In fact, practically all your mineral intake comes in your food.
http://www.who.int/water_sanitation_health...s/en/index.html
*
how sure are you that the cells won't burst? of course..u might not realise 100 cells bursting inside your body as body cells generally do not have a nerve receptor... laugh.gif
Eventless
post Sep 29 2010, 10:17 AM

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Here's a simple experiment that can be done to test this, take a bucket filled with distilled water and stick your hand in it. If you start seeing stuff coming off your hand after a while, it is probably a good indication that you have cells exploding and peeling off your hands or you should wash your hands more often.
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post Sep 29 2010, 10:22 AM

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QUOTE(Eventless @ Sep 29 2010, 10:17 AM)
Here's a simple experiment that can be done to test this, take a bucket filled with distilled water and stick your hand in it. If you start seeing stuff coming off your hand after a while, it is probably a good indication that you have cells exploding and peeling off your hands or you should wash your hands more often.
*
The cells on the epidermis are dead cells.... I don't think they will burst laugh.gif
Eventless
post Sep 29 2010, 10:30 AM

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QUOTE(PF T.J. @ Sep 29 2010, 10:22 AM)
The cells on the epidermis are dead cells.... I don't think they will burst  laugh.gif
*
Ever had your hands go wrinkly after soaking in water for a while? This shows that the water is having an effect on the skin so this experiment should still be valid.
Awakened_Angel
post Sep 29 2010, 10:31 AM

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QUOTE(highwind85 @ Sep 29 2010, 10:12 AM)
yes..minerals leave our body all the time...due too the regulations of the ions in our body, minerals not taken in by the cells but not due to the reasons Awakened_angel given..
*
That is what I read, sorry if I am wrong...

that since distilled water are so pure, they tend to'absorb" other mineral/particles to get equilibirum....

I am more familiar with water properties from physical properties outside human body
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post Sep 29 2010, 10:39 AM

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QUOTE(Eventless @ Sep 29 2010, 10:30 AM)
Ever had your hands go wrinkly after soaking in water for a while? This shows that the water is having an effect on the skin so this experiment should still be valid.
*
The dead cells are permeable to water. Upon permeating through those cells (after prolonged exposure to water), they come into contact with the inner cells, causing them to swell... since there's not enough space, they tend to push each other causing a wrinkled effect. I don't think the cells burst though.... hmm.gif
Eventless
post Sep 29 2010, 10:49 AM

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If the water can get in, the experiment is still valid isn't it? If distilled water can cause cells to explode, you'll have skin layers peeling off after a while. My guess is that you'll just end up with wrinkly hands and nothing more.
highwind85
post Sep 29 2010, 11:17 AM

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skin absorb water, yes..
cells burst, no...
http://www.scientificamerican.com/article....gers-wrinkle-in


Added on September 29, 2010, 11:23 am
QUOTE(Awakened_Angel @ Sep 29 2010, 10:31 AM)
That is what I read, sorry if I am wrong...

that since distilled water are so pure, they tend to'absorb" other mineral/particles to get equilibirum....

I am more familiar with water properties from physical properties outside human body
*
haha..we are all learning...what you're saying is "diffussion" which is valid without the involvement of semi-permeable membrane..
Osmosis is applicable for biological system due to the presence of semi-permeable membrane (Cell membrane/ cell wall)...
Ah..this brings me back my memories of spm bio experiment where you soak potatos in isotonic, hypertonic and hypotonic solutions..

This post has been edited by highwind85: Sep 29 2010, 11:23 AM

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