Can you replace seawater with a little salt in tap water?

No, there are many differences in their composition.

1.Hard water Natural water containing calcium salts and magnesium salts. In general, groundwater such as well water and spring water has a large salt content, and surface water such as river water and lake water has a small salt content.

In hard water, calcium, magnesium can be present in the form of carbonates, bicarbonates, sulfates, chlorides, and nitrates. When calcium and magnesium in hard water mainly exist in the form of bicarbonate, such as Ca(HCO3)2, Mg(HCO3)2, it is called temporary hard water, when this hard water is heated and boiled, bicarbonate will decompose into carbonate and precipitate to remove If calcium and magnesium in hard water mainly exist in the form of sulfate, nitrate and chloride, it is called permanent hard water, and they cannot be removed by boiling.

The calcium and magnesium salts in hard water can interact with soap (sodium stearate) to form insoluble stearate, reducing the decontamination ability of soap. If hard water is used in the boiler, calcium and magnesium salts will form scale on the inner wall of the boiler when heated. Reducing the thermal conductivity of the boiler, increasing energy consumption, and even shortening the life of the boiler, sometimes clogging the pipes.

Therefore, boiler water must be softened (see).

The salt content in hard water is usually expressed in terms of hardness. The hardness unit is often expressed as "degree", 1 degree is equivalent to 10mg of CAO per liter of water, and the total hardness of drinking water is required to be less than 25 degrees.

2.Soft water Natural water with only a small amount of soluble calcium and magnesium salts, or hard water that has been softened. Natural soft water generally refers to river water, river water, and lake (freshwater lake) water.

Softened hard water refers to demineralized water obtained when the calcium and magnesium salt content is reduced to milligrams. Although boiling can turn temporarily hard water into soft water, it is extremely uneconomical to use this method in industry to treat large amounts of water. There are ways to soften water:

Lime - Soda method. First, the hardness of the water is determined, and then a certain amount of calcium hydroxide and sodium carbonate are added, and the calcium and magnesium ions in the hard water are precipitated and precipitated

ca(hco3)2＋ca(oh)22caco3↓＋2h2o

mg(hco3)2＋2ca(oh)2 mg(oh)2↓＋2caco3↓＋2h2o

CaSO4 Na2CO3CaCO3 Na2SO4 phosphate soft water method. For boiler water, sodium phosphite (Napo3) can be added as a water softener, which forms a complex with calcium and magnesium ions, and calcium and magnesium will not precipitate in the form of precipitation when the water is boiled, so that scale will not be formed. This method is not suitable for the softening of drinking water.

Ion exchange method. Although zeolite and ion exchanger are insoluble in water, the sodium ions and hydrogen ions in them can exchange with calcium and magnesium ions in hard water, so that calcium and magnesium ions are adsorbed by zeolite, artificial zeolite and ion exchangers and removed. Zeolite and ion exchangers that fail after long-term use can be reused by regeneration, so this method is both economical and advanced water softening method.

No, because brine contains only H2O NaCl, and seawater is a very complex multi-component aqueous solution.

No, seawater is not just table salt, there are other substances that are complex.

Seawater cannot be used as salt, seawater needs to be processed to make salt.

The main processes of the traditional salt drying process are: beach pressing, brine extraction, flowering, pumping, and salt collection, which has continued to this day, and the production cycle of this method is 9 days, commonly known as the "nine-step method" beach drying.

The main disadvantages of the Yantian solar method compared with the heat pump compression method and the electrodialysis method are:

The land utilization rate is low, and the problem is particularly prominent in the eastern coastal where land resources are particularly scarce, and the climatic and seasonal nature of this method is strong, and it is mostly suitable for dry and sunny areas in the north, and the long-term sun beach exposure in the humid and rainy areas in the south is greatly affected by the weather. The degree of automation is low, and the steps of beach pressing, brine extraction, flower flowering, and pumping in the sun-drying method in the salt field need to be completed manually, resulting in an increase in labor costs.

The aging of employees is serious, and the relevant professional quality is poor; The salt is of low quality, mostly secondary salt (industrial salt), which needs to be further refined before it can become edible salt, which leads to a squeeze on profit margins.

Generally, in industry, salt is dried in seawater or boiled in well water or salt lake water to precipitate salt crystals, but the salt prepared in this way contains more impurities, which is called coarse salt. Coarse salt can be dissolved, precipitated, filtered, and evaporated to obtain refined salt.

No, seawater contains a lot of salts and a variety of elements, many of which are needed by the human body. However, the concentration of various substances in seawater is too high, far exceeding the drinking water health standard, if a large amount of drinking, it will lead to excessive entry of certain elements into the human body, affecting the normal physiological function of the human body, and will also lead to dehydration of the human body, and serious poisoning.

If you drink seawater, you can take a lot of fresh water to remedy it. Large amounts of fresh water can dilute the excessive intake of minerals and elements by the body, excreting them from the body through sweat.

There are various salts dissolved in seawater, and the origin of saltiness in seawater is a complex issue, which is related to the origin of the earth and the formation and evolution of the ocean. It is generally believed that the salt is mainly from the weathering products of crustal rocks and soluble compounds ejected from submarine volcanoes. In addition, the world's rivers transport dissolved salt to the ocean every year, which is also one of the salts** of seawater.

From its point of view, it seems that seawater should contain all the elements on Earth, but due to the limited level of analysis, only more than 80 have been determined.

Seawater is a veritable liquid mineral, with an average of 35.7 million tons of minerals per cubic kilometre of seawater, and 80% of the more than 100 elements known in the world can be found in seawater. Seawater is also the first fresh water on land and the regulator of climate, the world's oceans evaporate 4.5 million cubic kilometers of fresh water every year, of which 90% is returned to the ocean through rainfall, 10% is turned into rain and snow falling on the earth, and then returning to the ocean along the river. Seawater desalination technology is developing into an industry.

Theoretically, it can be used directly. But it must be very unclean. In ancient times, people introduced seawater into a place similar to a field, and then let it dry under the sun, and after the water surface was lowered to a certain level, they introduced seawater again and continued to dry, and then the precipitated salt would accumulate.

Instead of boiling it dry directly You can cook it over fire, boil it halfway, add seawater, continue to boil, boil it half again, and then pour it out, so that the salt you get will be a little better than boiling it dry FYI.

No, they are very different in composition:

1. Hard water: natural water containing calcium salt and magnesium salt, usually, groundwater such as well water and spring water has a large salt content, and surface water such as river water and lake water has a small salt content, and in hard water, calcium and magnesium can exist in the form of carbonate, bicarbonate, sulfate, chloride and nitrate. When calcium and magnesium in hard water mainly exist in the form of bicarbonate, it is called temporary hard water, when this hard water is heated and boiled, the bicarbonate will decompose into carbon behenate and precipitate to remove, if calcium and magnesium in hard water mainly exist in the form of sulfate, nitrate and chloride nude group, etc., it is called permanent hard water, and they cannot be removed by boiling.

2. Soft water: natural water containing only a small amount of soluble calcium salt and magnesium salt, or hard water that has been soft and roughened. Natural soft water generally refers to river water, river water, and lake water.

Softened hard water refers to the demineralized water obtained when the calcium and magnesium salt levels are reduced to Hauk per litre. By boiling, you can turn temporarily hard water into soft water.

It is not possible to use iodized salt at home to add water, which is equal to seawater, you have to buy rough processed salt, and then add pure water.

Salt is only sodium chloride, which is the main component of seawater, but it is not the same as seawater, and there are other ions such as calcium and magnesium in seawater, as for whether it can be replaced, it depends on what you want to do.

No, there are a lot of minerals, microorganisms, and so on in the seawater.

No. Seawater is salty, the reason is that seawater contains various salts, an average of 35 grams of salt per 1000 grams of seawater, adding salt to the water can make the same salinity, but it is still different from seawater, there are many other substances in seawater. There are other steps that are required to artificially produce seawater.

Artificial seawater is the medium of turning fresh water into seawater, according to the chemical composition of natural seawater, with dozens of pure inorganic salt raw materials, compounded by scientific proportion, which contains a large number of natural seawater and trace elements, is the best choice for raising various marine fish, shrimp, shellfish, soft, and replacing natural seawater.

No, there are other minerals in seawater.

Salt water is salt water, which is very different from seawater, and seawater has many components, not only sodium chloride, but also some other minerals. Table salt is nothing but sea salt, and you can try it with sea salt.

Seawater salt can be eaten, but it must be processed before it can be eaten, and most of the salt currently consumed by people is seawater salt.

The method of extracting salt from seawater is mainly the "salt pan method", which is an ancient method that is still widely used today. Use the method. It is necessary to select large areas of flat seaside tidal flats in areas with mild climate and abundant sunlight to build salt pans.

The salt pan is generally divided into two parts: the evaporation pond and the crystallization pond. First, the seawater is introduced into the evaporation pool, and when the water is evaporated to a certain extent by the sun, it is poured into the crystallization pool and continued to be sun-dried, and the seawater will become a saturated solution of salt, and the salt will gradually precipitate out when it is sun-dried.

The crystals obtained at this point are our common coarse salts. The remaining liquid is called the mother liquor, from which multiple chemical feedstocks can be extracted.

Theoretically, seawater can be prepared using sea salt. Here's a simple list of ingredients and steps to make seawater: Blind Dan Ride.

Ingredient list: Maina.

Sea salt: Sea salt is usually found in fish markets or aquariums, and can also be purchased in some supermarkets or online.

Water: Either fresh water or tap water can be used to prepare seawater. However, in order to simulate the marine environment as much as possible, it is advisable to use freshwater that has been adequately filtered.

Production Steps:1According to the composition ratio of seawater, an appropriate amount of sea salt is added to fresh water.

This ratio depends on the salinity of the seawater you want to simulate. For example, if you want to simulate seawater with a salinity of 35 parts per thousand, you can use a recipe that adds 35 grams of sea salt per liter of fresh water.

2.After stirring well, wait for a while (a few hours to a few days) for the salt to fully dissolve in the water delay.

3.Add the right amount of trace elements and compounds to mimic other ingredients in the ocean. These additives include calcium, magnesium, iodine, bromine, zinc, etc., which can be purchased in special seawater additives or pharmacies.

4.If you want a more accurate simulation of seawater, you can conduct water quality tests to ensure that salinity and other parameters meet marine standards.

It is important to note that while this method can simulate a seawater-like environment, it does not fully replicate the complexity of the ocean. For example, seawater is formulated to lack marine biota and microbial communities, making it unsuitable for long-term marine culture.

OK. Such as regression"Guangzhou Aquarium".The 8,000 tonnes of seawater in the aquarium are all man-made.

Their own scientific researchers have developed artificial sea salt that is ahead of the international advanced level, and the prepared seawater has dozens of trace elements required by fish, so that its water quality is completely comparable to the unpolluted water of Li Shibi in the depths of the ocean.