Corrosive Effect of Salt Water and Fresh Water?
143304
Salt water is more corrosive, if that's what you're looking for.
1066233
Unless they're rechargable batteries no.  If they are take into account if and what water they were exposed to.  Salt water corrodes things so if it came into contact with it just dispose of the batteries.  Battery acid is no fun and ruins clothes and burns like hell.  If it's fresh you have less chance of corrosion.
58936
All water, even rain water, contains dissolved chemicals which scientists call "salts." But not all water tastes salty. Water is fresh or salty according to individual judgment, and in making this decision man is more convinced by his sense of taste than by a laboratory test. It is one's taste buds that accept one water and reject another.\nA simple experiment illustrates this. Fill three glasses with water from the kitchen faucet. Drink from one and it tastes fresh even though some dissolved salts are naturally present. Add a pinch of table salt to the second, and the water may taste fresh or slightly salty depending on a personal taste threshold and on the amount of salt held in a "pinch." But add a teaspoon of salt to the third and your taste buds vehemently protest that this water is too salty to drink; this glass of water has about the same salt content as a glass of sea water.\nObviously, the ocean, in contrast to the water we use daily, contains unacceptable amounts of dissolved chemicals; it is too salty for human consumption. \n\nHOW SALTY IS THE OCEAN?...\nHow salty the ocean is, however, defies ordinary comprehension. Some scientists estimate that the oceans contain as much as 50 quadrillion tons (50 million billion tons) of dissolved solids.\n\nIf the salt in the sea could be removed and spread evenly over the Earth's land surface it would form a layer more than 500 feet thick, about the height of a 40-story office building. The saltiness of the ocean is more understandable when compared with the salt content of a fresh-water lake. For example, when 1 cubic foot of sea water evaporates it yields about 2.2 pounds of salt, but 1 cubic foot of fresh water from Lake Michigan contains only one one-hundredth (0.01) of a pound of salt, or about one sixth of an ounce. Thus, sea water is 220 times saltier than the fresh lake water. What arouses the scientist's curiosity is not so much why the ocean is salty, but why it isn't fresh like the rivers and streams that empty into it. Further, what is the origin of the sea and of its "salts"? And how does one explain ocean water's remarkably uniform chemical composition? To these and related questions, scientists seek answers with full awareness that little about the oceans is understood.\n\n\nIllustration: Sources of salts in the ocean.\n\nTHE ORIGIN OF THE SEA...\nIn popular language, "ocean" and "sea" are used interchangeably. Today's seas are the North and South Pacific, North and South Atlantic, Indian and Arctic Oceans and the Antarctic waters or seas.\nScientists believe that the seas are as much as 500 million years old because animals that lived then occur as fossils in rocks which once were under ancient seas. There are several theories about the origin of the seas, but no single theory explains all aspects of this puzzle. Many earth scientists agree with the hypothesis that both the atmosphere and the oceans have accumulated gradually through geologic time from some process of "degassing" of the Earth's interior. According to this theory, the ocean had its origin from the prolonged escape of water vapor and other gases from the molten igneous rocks of the Earth to the clouds surrounding the cooling Earth. After the Earth's surface had cooled to a temperature below the boiling point of water, rain began to fall and continued to fall for centuries. As the water drained into the great hollows in the Earth's surface, the primeval ocean came into existence. The forces of gravity prevented the water from leaving the planet.\n\nSOURCES OF THE SALTS...\nSea water has been defined as a weak solution of almost everything. Ocean water is indeed a complex solution of mineral salts and of decayed biologic matter that results from the teeming life in the seas. Most of the ocean's salts were derived from gradual processes such the breaking up of the cooled igneous rocks of the Earth&#39
846947
It depends on your definition of "danger", "residue", and "use".  If the use was acid neutralization, the only danger would be the salt formed and its impact on rusting metal.  If the NaOH was not "used up", it will stay basic for years, the pH indicating the level of "danger".  The residues could be caustic, salt, or a salt from how it was used.  You have to test to see what it is or know the "use".
1027806
When shipping anything metal that has the potential to experience a salt water environment, coat the object in a substance called Cosmoline, which is a waxlike substance that prevents oxidation and corrosion.  It can be found at any Hardware store or Gun shop.
28439
The mineral content of the Dead Sea is significantly different from that of ocean water, consisting of approximately 53% magnesium chloride, 37% potassium chloride and 8% sodium chloride (table salt) with the remainder comprised of various trace elements.\n\nThe concentration of SO4 ions is very low, and the bromine ions concentration is the highest of all waters on Earth. Chlorides neutralize most of the calcium ions in the Dead Sea and its surroundings. While in other seas NaCl is 97%, in the Dead Sea the quantity of the NaCl is only 12-18 percent. The water temperature goes from 19 °C in February to 31 °C in August.\n\nThe water of the Dead Sea contains 21 minerals including magnesium, calcium, bromine and potassium. Twelve of these are found in no other sea or ocean, and some are recognized for imparting a relaxed feeling, nourishing the skin, activating the circulatory system and for easing rheumatic discomfort and metabolic disorders. Comparison between the chemical composition of the Dead Sea to other lakes and oceans show that the salt's concentration in the Dead Sea is 31.5% (the salinity fluctuates somewhat). Because of its unusually high concentration of salt, anyone can float in the Dead Sea easily because of natural buoyancy. In this the Dead Sea is similar to the Great Salt Lake in Utah, in the United States.
24556
Everyone who has been to the beach knows that seawater is salty. Everyone also knows that fresh water in rain, rivers, and even ice is not salty. Why are some of Earth’s waters salty and others not? There are two clues that give us the answer. First, “fresh” water is not entirely free of dissolved salt. Even rainwater has traces of substances dissolved in it that were picked up during passage through the atmosphere. Much of this material that “washes out” of the atmosphere today is pollution, but there are also natural substances present.\n\nAs rainwater passes through soil and percolates through rocks, it dissolves some of the minerals, a process called weathering. This is the water we drink, and of course, we cannot taste the salt because its concentration is too low. Eventually, this water with its small load of dissolved minerals or salts reaches a stream and flows into lakes and the ocean. The annual addition of dissolved salts by rivers is only a tiny fraction of the total salt in the ocean. The dissolved salts carried by all the world’s rivers would equal the salt in the ocean in about 200 to 300 million years.\n\nA second clue to how the sea became salty is the presence of salt lakes such as the Great Salt Lake and the Dead Sea. Both are about 10 times saltier than seawater. Why are these lakes salty while most of the world’s lakes are not? Lakes are temporary storage areas for water. Rivers and streams bring water to the lakes, and other rivers carry water out of lakes. Thus, lakes are really only wide depressions in a river channel that have filled with water. Water flows in one end and out the other. \n\nThe Great Salt Lake, Dead Sea, and other salt lakes have no outlets. All the water that flows into these lakes escapes only by evaporation. When water evaporates, the dissolved salts are left behind. So a few lakes are salty because rivers carried salts to the lakes, the water in the lakes evaporated and the salts were left behind. After years and years of river inflow and evaporation, the salt content of the lake water built up to the present levels. The same process made the seas salty. Rivers carry dissolved salts to the ocean. Water evaporates from the oceans to fall again as rain and to feed the rivers, but the salts remain in the ocean. Because of the huge volume of the oceans, hundreds of millions of years of river input were required for the salt content to build to its present level. \n\nRivers are not the only source of dissolved salts. About twenty years ago, features on the crest of oceanic ridges were discovered that modified our view on how the sea became salty. These features, known as hydrothermal vents, represent places on the ocean floor where sea water that has seeped into the rocks of the oceanic crust, has become hotter, and has dissolved some of the minerals from the crust, now flows back into the ocean. With the hot water comes a large complement of dissolved minerals. Estimates of the amount of hydrothermal fluids now flowing from these vents indicate that the entire volume of the oceans could seep through the oceanic crust in about 10 million years. Thus, this process has a very important effect on salinity. The reactions between seawater and oceanic basalt, the rock of ocean crust, are not one-way, however; some of the dissolved salts react with the rock and are removed from the water.\n\nA final process that provides salts to the oceans is submarine volcanism, the eruption of volcanoes under water. This is similar to the previous process in that seawater is reacting with hot rock and dissolving some of the mineral constituents.\n\nWill the oceans continue to become saltier? Not likely. In fact the sea has had about the same salt content for many hundred of millions if not billions of years. The salt content has reached a steady state. Dissolved salts are being removed from seawater to form new minerals at the bottom of the ocean as fast as rivers and hydrothermal processes ar
554126
because of the salt content, salt tends to draw water out, hence out in the open the salt would allow the water to be evaporated much more quickly than fresh water
289316
They are often different due to the different water temperatures.  The total amount of dissolved salt in water decreases with temperature.
508648
use water with salt spray.
6704
The Dead Sea waters contain salts of magnesium chloride (53%), potassium chloride (37%) and only 8% sodium chloride, which is normal table salt. Magnesium chloride and pottasium chloride give the Dead Sea salt a bitter taste that makes it undesirable to consume, but not poisonous. \n\nHowever, since raw sewage runs into the Dead Sea it probably is unsafe to drink. The salinity may kill most of the bacteria, but there are trace metals that are hazardous that are found in these waste waters. Agricultural chemicals are another problem. \n\nSome Dead Sea salts are mined for 'therapeutic" uses, likely becuase some of the minerals in the salts are thought to be good for the skin. \nhttp://www.nextag.com/bulk-sea-salt/search-html
918750
I don`t think that it`s corrosive becuz sometimes it`s mix with medicine, and medicine is not corrosive, so sulfur wouldn`t b either, i guess.
851280
(m)\n\n1. VERY PURE water is a poor conductor of electricity. However, very small amounts of impurities, especially salts, greatly increase the electrical conductivity of water.\n2. The main carriers of electrical current are dissolved ions. If a \nbattery is connected to a container of water so that the (+) and (-) poles of the battery are immersed in the water, the positive ions will migrate toward the (-) pole and the negative ions will migrate toward the (+) pole (electrical opposites attract). This closes the\n"switch" and electric current flows through the solution.\n3. Different ions can help carry the electric current, some more / some  less, depending upon their electrical charge and their size. More highly charged,  smaller ions are more efficient carriers of the electrical current.\n4. The higher the concentration of ions, the greater is the conductance of the solution.\n5. There is a complication however, the water and / or certain of the ions may undergo a chemical reaction to one or the other, or both of the electrodes. You may not want to introduce this in the beginning but it does happen.\n6. None of the ion electrical current carriers of salts dissolved in water are as mobile as "free" electrons in a metal are. And the differences are very large. For example, if the conductivity of  VERY PURE WATER is 0.000004 conductivity units, the conductivity of a saturated solution of common table salt NaCl is 23 conductivity units, and the conductivity of a typical metal such as copper wire is 60, 000, 000 conductivity units. So while the\nions in a dissolved salt behave something like "free" electrons, they are very slow and sluggish moving
546808
Saltwater tastes nasty... kinda ermmmm... saltyish. It's also lethal to some aquatic life whilst essential to others.\n\nAlso drinking salwater will dehydrate you whist fresh water hydrates you.
587951
depends....if one water is lighter, like salt water is lighter than fresh water, then yes\nif they are the same type of water, then no
415923
Yes, salt water is a sodium chloride solution with Na+ and Cl- ions. when two seperate condutors are immersed in the solution without contacting each other and a bulb or any electrical appliance is placed across the conductors the positive and negative ions migrate and conducts electricity.
508138
SEA WATER IS SALTY WHILST TAP WATER HAS BEEN TREATED TO REMOVE IMPURITIES.