why cant we turn salt water into drinking water?
820178
YYou can I am not exactly sure of the process though.
317174
Dear Friend,\n\nSalt in the ocean comes from the land. The elements that make up salts, such as chlorine and sodium, started out in rocks. Water and acids eroded the rocks, and rivers carried the elements into the sea. The oceans usually contain 35 parts of salts for every 1000 parts of sea water. This is lower in some places where there is a lot of fresh water coming into the ocean. It is higher where the Sun is very strong and evaporates more of the water. When all the water is gone, the salts are left behind as solid, white crystals.\n\nThe right amount of salt is a very important part of our diet. In ancient times, salt was worth its weight in gold. People used it to flavor and preserve their food. Without salt, the food would spoil. For this reason, salt became a symbol of purity. Some sacrifices in the Old Testament included salt (Leviticus 2:13; Ezekiel 43:24). Jesus called faithful people "the salt of the earth," and the apostle Paul said that our speech should be "seasoned with salt" (Colossians 4:6).
307435
Are you asking about a chlorine generator that uses salt water? Such things do exist. Several brands. All of them are fairly expensive, not electrically efficient (the electricity they use costs more than the chlorine they make), and very unreliable. Plus, they are expensive to repair. And, they break down a lot! You still are using chlorine to sanitize your water so what have you gained? Silly idea, isn't it? Take my advice. STAY AWAY from the things!
1143985
There is a condition called water intoxication but you really have to drink a lot of water.  It basically dilutes the electrolytes in your body to a degree that it can't function properly and is a life threatening condition.  I think someone would have to force themselves to drink that kind of volume, though, since it would not be easy.
165386
Once again we see the rush of answers from people who have no idea. Not just misinformed, but with no knowledge of the subject.\n\nSweat contains salts because they raise the sweat to absorb more heat before it evaporates. And when it evaporates it takes all that heat with it. That makes salt water a far more efficient cooling mechanism than just pure water.\n\n\n>>> Because we expell most of the sodium in our bodies >>>through our sweat glands.\n\nWhat nonsense. Have you ever heard of kidneys? They are how the body expels excess sodium.  Jeepers, if we relied in sweating to regulate sodium levels everyone would die on a cold winter's day.\n\n\n>>>>It also serves to excrete and eliminate some of the \n>>>> unwanted wastes from your body, along with the moisture \n>>>>- and these wastes are salty !\n\nUnless you have been drinking EXTREMELY heavily or have some nasty disease the amount of 'waste' excreted through sweat is almost immeasurable. And almost none of that is salt. If the only salt in sweat was from excreted wastes it would be less salty than tap water.\n\n______\n>>>>Actually, sweat is salty because life originates from >>>>Earth's oceans. \n\n\nWe know that is nonsense because most mammals produce sweat that is far less saline than human sweat. If your theory were correct all mammals would have sweat of exactly the same salinity since allmamals have exactly the same common marine ancestor.\n\n>>>>If heat transfer were the only mechanism by which salty >>>>sweat were naturally selected, then the salinity of >>>>sweat might be much higher.\n\n\nIt might be bright pink too, but it isn't. Salt is a limiting resource in its own right on the savannas of Africa. Their is a limit to how much can be expended seating without leading to death.\n\nHowever the question asked why sweat is salty, not why it isn't saltier.
809558
Your cells are always in an isotonic solution which means the solute level (salt and other material) and the water level is about the same. Salt water is a hypertonic solution because the levels of solute outnumber the water. When you drink salt water it causes the water in your cells to leave the try to reach equilibrium. This causes them to shrink and ultimatily make the organism die.
95618
basically you're talking about distilling water, which is a purification technique.  collect the water vapor and let it condense. the result is pure water.
676507
because sea water has a salt concentration in it, and it is corrosive, similar to an acid but not as destructive. and saltwater will kill plant life harming the surrounding enviroment. they do but they also have salt water filters on the firboats to help bring the salt concentration down.
844403
The reason why sea water is salty is of course because of the presence of salt. However, how does it get into the ocean?? \n\nAs water evaporates, it rises and cools and becomes clouds. It then falls off as rain. These are fresh water as the process is like distillation. As you may know, water is a pretty good solvent and as it washes down the ground, it dissolves small amount of minerals, which includes salt, NaCl.\n\nAs you know, water does not just stay on the ground, it flows from high place to low, carry all these minerals with it. As it moves to the lowest point on earth, there is no where to go, so it accumulates. As time goes on, it forms ocean. As this process continues, all the salts are washes into the ocean with no exit, as a result, make the ocean more and more salty.\n\nThe dead sea, is indeed the lowest level on earth, and is indeed the most salty sea. The water density is so high (because it has so much salt in it) that almost anything can float on it.
1126778
There is no way for this to be possible b/c water is in EVERYTHING you eat & drink. So if you include all water on the planet then you include the water in drinks & food as well as in other places you forget like the atmosphere, your body, etc. Water water everywhere! :)
1117915
because the salt u use in the kitchen does not contain all the particals in the sea water like sodium sulphate magnesium sulphate etc because they are removed in the process  of making the salt and some times the salt it cut down from deep earth and they are also cleaned by removing the toxic particles and iodised which may alter the sea water salt from earth solt altho the main component of salt is Na Cl it has other particals such as iodine and k+ irons Fe ect...
1065448
I really dont know why you would do this.. If you want to do it.. go get sand from the beach.. dump it in the bottom of your pool.. and stir.. sand will go to the bottom, the salt will saturate your water.. \n\nAgain.. why you would want this. i dont know
858193
Yes.  Salt water freezes at a lower tempurature than fresh water. \n\nThat is why we use salt to melt ice on sidewalks in the winter.
8661
Well I spend some time googling for it but I didn't find any research on the topic.\n\nHowever, logicaly, a water spout would suck up the water as salt water since its a mechanical function, not an evaporative one.\n\nThat said, there is the concept of seeding a cloud with salt to cause rain to form.  It seems unlikely however that a salt in solution would come out of solution in the cloud, however maybe it could be MUCH diluted since most of a cloud would be freshwater.\n\nWith evaporation, the salt remains in the ocean.  In the case of the spout, the salt water is picked up and the returns down as salt water.\n\nThe logic here is that the salt HAS to return back to the earth somehow.
429486
water, drinkable water. territorial access to ports and water. \n\none day certain water may get so contiminated the ecosystem will not be able to purify the water. then ground water will become very valuable.
874952
Saltwater is isotonic to a cell assuming that it has a balanced osmolarity for the particular cell.  Fresh water has essentially no ionic component, and as such will cause the cell to take up water in an attempt to balance the gradient.
458574
first of all it doesn`t happen in any water. if the water`s chemical combination and salt ratio is in the right measure.then it doesn`t happen...it happens becouse your skin works as an invert viscose layer and if the mineral an salt combination of two sides of skin(your body and the water) is not in ballance then skin leaks water out(wrinkle)\nor sucks water in(edema). this ability in some matterials is used in water purification systems to get drinkable water out of sea water.\n  have fun