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"Salt" is mostly the abbreviation and colloquial saying of "edible salt"; In fact, the broader, generalized salt refers to "chemical salt", and chemical salt has a broader meaning than edible salt: salt, in chemistry, refers to a class of metal ions or ammonium ions (NH4+) combined with acid ions or non-metal ions of compounds, such as calcium sulfate, copper chloride, sodium acetate, generally speaking, salt is the product of metathesis reaction, such as sulfuric acid and sodium hydroxide to produce sodium sulfate and water, and there are other reactions that can generate salts, such as displacement reactions. Salt is divided into single salt and combined salt, single salt is divided into normal salt, acid salt, alkaline salt, and combined salt is divided into double salt and wrong salt.
Among them, the acid salt contains hydrogen ions in addition to metal ions and acid ions, and the basic salt contains hydroxide ions in addition to metal ions and acid ions. When the wrong salt is dissolved in water, it can form a complex of complex ions that are different from the original salt. ]
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In a narrow sense, industrial salt refers to sodium chloride, which is different from edible salt sodium chloride in that it contains some substances that are harmful to the human body, so it cannot be added to food. Industrial salts in a broad sense refer to compounds formed by the combination of metal cations (including ammonia ions) and acid anions, and cannot be added to food. ]
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Industrial salt, also known as "sodium chloride", has a wide range of industrial uses and is one of the most basic raw materials in the chemical industry, known as the "mother of the chemical industry". ]
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Difference Between Industrial Salt and Edible Salt1. 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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Edible salt is relatively pure sodium chloride, while industrial salt contains sodium nitrite in addition to sodium chloride. Edible salt contains iodine, is white, and has a fine sandy appearance, while industrial salt does not contain iodine, has a gray color, and is mostly granular in appearance.
Industrial salt is one of the most basic raw materials in the chemical industry, and its main components are sodium chloride, sodium nitrite, etc., and is known as the "mother of the chemical industry".
The main component of edible salt is sodium chloride, which also contains a small amount of water and impurities and other elements such as iron, phosphorus and iodine.
Edible salt is the main salty taste in dishes, which has the effect of improving umami and increasing flavor. Edible salt can be preservative and sterilized, adjust the texture of raw materials, and increase the crispness and tenderness of raw materials.
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Absolutely. The so-called "industrial salt" refers to the sodium chloride crystals mainly used as chemical raw materials, which are very bulk chemical raw materials - the basis of modern chemical industry: three of the three acids and two alkalis are inseparable from him - caustic soda soda ash and hydrochloric acid, which are absolutely based on sodium chloride as direct or indirect raw materials.
However, today, even the salt used in industrial production has a sodium chloride content of more than 99%, and the appearance is crystal clear, and the quality of this "industrial salt" crushes the special salt supplied by the royal family in China 150 years ago (that is, before the introduction of modern industrial salt production methods by the Westernization Movement). The purity of edible salt is also 99% nominal, in fact, I have always suspected that the so-called edible salt and industrial salt are simply from the same production line, but on one side it is packaged into a large bag of 50 kg sack, and on the other hand it is a small package of 500g a pack.
The cost price of industrial salt is about 200 yuan tons, compared with edible salt** - an average of 5 yuan kg, there is 25 times the gross profit (excluding the cost of re-purification, packaging, small-scale transportation, etc.). Edible salt is also added to iodine, the amount of additives is 2/10,000, and the impact on the cost is almost negligible, so there is such a spread, of course there will be people who do this business.
In the raw salt, the real "toxic" substances to people, the content can be said to be negligible, basically negligible, the most important thing is: there can never be sodium nitrite. Because the production of industrial salt is nothing more than these **:
Drying sea salt, lake salt, well salt, direct mining of rock salt, raw materials are naturally occurring. Sodium nitrite is basically not stable in its natural state, and the crystalline state is fine, and it will slowly decompose itself after being dissolved in water. The sodium nitrite used in industrial production is synthesized, and it costs more than 2,000 tons, and it is not cost-effective to use it as salt.
Moreover, let's calculate the amount of poisoning: a one-time consumption of sodium nitrite in adults will trigger a toxic reaction. If it is used for industrial production salt, even if the 1% impurity is sodium nitrite, this time you have to eat 50g of table salt to cause sodium nitrite poisoning - I think you will die first.
Therefore, the so-called "industrial salt" will be poisoned as edible salt, which is nothing more than the following possibilities:
1. Misunderstanding by chance.
2. Deliberately fabricated official rumors to promote the salt monopoly - I think this is the most likely.
3. One of the major uses of sodium nitrite is to make concrete antifreeze, so it will appear in large numbers on construction sites, and the cultural level and personal quality of migrant workers in China are also very reasonable to steal and take away.
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The difference between industrial salt and edible salt: 1. Industrial salt Industrial salt has a wide range of industrial uses and is one of the most basic raw materials in the chemical industry"The mother of the chemical industry"。The main products of the basic chemical industry, such as hydrochloric acid, caustic soda, soda ash, ammonium chloride, chlorine, etc., are mainly produced with industrial salt as raw materials.
Industrial salt refers to raw salt, which is divided into lake salt, well salt and sea salt, among which sea salt is relatively high in industrial value and low in edible value because seawater dissolves a variety of elements. 2. Edible salt Edible salt refers to the processed edible salt with sodium chloride as the main component obtained from seawater, underground rock (mineral) salt sediments, and natural brine (salt) water, excluding low-sodium salt. The main component of edible salt is sodium chloride (NaCl), which also contains small amounts of water and impurities, as well as other elements such as iron, phosphorus and iodine.
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1. Edible salt is a food-grade salt product obtained on the basis of raw salt through multiple strict processes such as purification, impurity removal, drying, screening, and packaging, and is produced by enterprises that have obtained the national salt designated production qualification in accordance with GB5461-2000 "edible salt" standard. Most table salts have good flowability and solubility.
2. Industrial salt refers to raw salt, which is divided into lake salt, well salt and sea salt, in which the industrial value of sea salt is relatively higher and the edible value is lower because the seawater in sea salt dissolves into a variety of elements.
3. The main component of edible salt and industrial salt is sodium chloride. Although the ingredient is the same as sodium chloride, the standard of edible salt is much higher than that of industrial salt. For example, strict control has been made in whiteness, particle size, and hygienic indicators (lead, arsenic, fluorine, barium ion content), etc., and the addition of anti-caking agent and iodine agent, packaging, labeling, and transportation and storage conditions have made clear requirements for safety.
In addition, the sodium chloride content of table salt varieties such as low-sodium salts introduced in recent years is not necessarily high, which is to meet the needs of special populations.
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In fact, industrial salt is a product of raw salt that has not been purified many times, and it also comes from salt pans and salt mines, which can be said to be the same as edible salt. The biggest difference between it and edible salt is that there are more impurities, including MgCl2 and other impurities, while MgCl2 is easy to deliquescent, which can cause diarrhea for people, and of course, there are some other impurities.
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Hello, I am very happy for you to ask this question, the main products of the basic chemical industry in hydrochloric acid, caustic soda, soda ash, ammonium chloride, chlorine, etc. are mainly produced with industrial salt as raw materials. In addition, it is also used in soap manufacturing, ceramics, glass production, daily chemicals, oil drilling, drilling working fluids, completion fluids, petrochemical dehydration fluids, early strength agents in the construction industry, coagulants for the production of coatings, latex coagulants in the rubber industry, additives in the paper industry and waste paper deinking, inorganic chemical raw materials and sulfate removers in the chemical industry, coagulants for sodium alginate, prevention and control of wheat, apples, cabbage and other rot and food preservatives, preparation of sodium metal and other sodium compounds, steel heat treatment media, etc. Salt also has a wide range of uses in water treatment, road snow removal, refrigeration and refrigeration, etc.
Hope mine can help you.
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The difference between industrial salt and edible salt is that it is quasi-different, the use is different, the use is needless to say, one is for industry, the other is for food, edible salt refers to the processed edible salt with sodium chloride as the main ingredient obtained from seawater, underground rock salt sediments, natural brine, etc., edible salt is one of the most commonly used seasonings in cooking, and it is also an indispensable substance for the normal physiological activities of the human body.
Industrial salt has a wide range of industrial uses and is one of the most basic raw materials in the chemical industry, and its main component is sodium chloride, which is known as the "mother of the chemical industry". The main products of the basic chemical industry, such as hydrochloric acid, caustic soda, soda ash, sodium chloride, chlorine, etc., are mainly produced with industrial salt as raw materials.
Hazards of industrial salt consumption
For example, industrial salt may contain impurities such as lead, arsenic, mercury, cadmium and nitrite, and the long-term accumulation of heavy metals may cause dizziness, disease, myocardial injury, neuritis, multi-organ dysfunction, muscle spasms, abdominal pain, vomiting, bone pain, nephritis, and even carcinogenic and teratogenic.
After a large amount of nitrite enters the human body, it can make the oxygen-carrying low hemohemoglobin in the body become methemoglobin. As soon as methemoglobin encounters oxygen, it binds firmly and is not easily separated. In this way, the body's tissues throughout the body are starved of oxygen.
When the human body ingests nitrite, it can cause acute poisoning, and 3 grams can kill people.
Once the human body is poisoned, it will become ill in ten minutes, and there will be dizziness, head swelling, tinnitus, general weakness, numbness in the hands and feet, nausea and vomiting, diarrhea, dyspnea and other symptoms, and convulsions and coma in severe cases. Of course, the consumption of industrial salt alone is not enough for acute nitrite poisoning.
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