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Difference Between Industrial Salt and Edible Salt.
China Food Industry Network.
Difference Between Industrial Salt and Edible Salt.
As we all know, people cannot live without "salt" for a day. Table salt is one of the essential substances for the human body. The human body contains sodium and chlorine.
The daily intake of salt for adults is generally controlled at 2000 to 2500mg, which maintains the function of muscles and nerves, while maintaining the normal excitation of muscles and the permeability of cells.
News**There are often reports of poisoning caused by accidental ingestion of industrial salt, so what exactly is industrial salt? What is the difference in the nature of table salt and industrial salt? How to distinguish between the two and how to prevent industrial salt poisoning has become a concern for many people.
The difference between table salt and industrial salt.
1.Structurally: table salt is a purer sodium chloride, and the chemical formula of sodium chloride is NaCl, which is composed of chloride ions and sodium ions.
In addition to sodium chloride, there is also sodium nitrite that exceeds the standard, and its chemical formula is nano2, and the formula is composed of nitrite ions and sodium ions.
2.Properties: The nature of salt is relatively stable, and the aqueous solution is neutral. Sodium nitrite is relatively stable under dry conditions, but it can slowly absorb oxygen and oxidize to sodium nitrate, and the aqueous solution is alkaline.
3.Appearance: Both are white, and in special cases, table salt may also appear yellow or light blue, and sodium nitrite may also appear slightly yellowish. Both are crystalline and have a certain difference in geometry under the microscope, but they are not distinguishable with the naked eye.
4.Solubility: Sodium nitrite and table salt are very soluble in water, easy to deliquescent, and odorless.
5.Taste: Sodium nitrite is slightly salty, and table salt has a strong salty taste, which is difficult to distinguish by taste when eating.
From the above comparison, it can be seen that sodium nitrite is similar to salt in appearance and taste, and is easy to cause accidental ingestion poisoning.
Mild poisoning is generally not required, and more serious cases should be sent to the hospital immediately. The main ** measures are:1
Induce vomiting, gastric lavage, and induce vomiting. 2.The use of antidote methylene blue (melan) and vitamins has a certain effect on eliminating methemoglobinosis.
3.High doses of vitamin C and glucose are given.
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Looking at the color, color, and uniformity, industrial salt generally contains more impurities, and the color is opaque after being dissolved in water, and there are impurities and precipitates.
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Difference Between Industrial Salt and Edible Salt. 1. Edible salt is relatively pure sodium chloride, and industrial salt not only has sodium chloride, but also has a high content of sodium nitrite.
2. Salt is neutral after melting, and alkaline after melting industrial salt.
3. Edible salt is relatively stable and will not change at will, and industrial salt is relatively stable when dry, but it will gradually absorb the oxygen in the air and eventually become nitric acid.
4. Industrial salt is sulfate and nitrate, which is harmful, and edible salt is harmless to the body.
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In addition to NaCl, the components in the real salt also contain iodine, there is no iodine in the fake salt, tested with starch solution, according to the principle of starch solution turning blue when encountering iodine, in addition, the difference between industrial salt and edible salt is that industrial salt contains impurities such as magnesium chloride, which is easy to absorb moisture in the air and becomes damp, and can be observed for a long time to distinguish between industrial salt and edible salt, and can also add clarified lime water to distinguish industrial salt from salt, and industrial salt added to clarified lime water will produce sediment.
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Learn these tricks to easily distinguish between "edible salt" and "industrial salt", and don't buy the wrong one in the future!
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Learn these tricks to easily distinguish between "edible salt" and "industrial salt", and don't buy the wrong one in the future!
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From the perspective of the eye, edible salt has less crystallization, fewer impurities, and smaller particles than industrial salt; From a relatively professional point of view, you can measure the composition and look at the composition ratio of the corresponding constituent salts to determine industrial salt and edible salt, I hope the answer will be helpful to you.
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Only this year is undistinguishable by the naked eye, industrial salt contains more impurities, may be different from edible salt in color, but illegal enterprises through simple processing, can achieve the same color and shape as edible salt, industrial salt in addition to containing some magnesium, calcium and other ions, the most important thing is to contain toxic nitrite, people can not eat, it is recommended to buy in large supermarkets may be better.
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Learn these tricks to easily distinguish between "edible salt" and "industrial salt", and don't buy the wrong one in the future!
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Rub it with your hands! Edible salt with a delicate feel, industrial salt with a lot of residue! Or melt water to see, melt fast use, melt slow industrial salt!
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Feel it. The fine ones are generally table salt.
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