Sodium nitrite is an industrial salt. It is a white opaque crystal that looks like salt. Nitrite is harmful to human body, which can oxidize low iron hemoglobin in blood into methemoglobin, lose the ability to transport oxygen, and cause tissue hypoxia damage. Nitrite is not only a carcinogen, it can cause food poisoning when ingested in 0.2~0.5 g, and it can kill you in 3 g. Nitrite is a kind of food additive, which plays the role of coloring and antisepsis, and is widely used in cooked meat, canned food and other animal foods. In view of the many beneficial effects of nitrite in meat crispness, countries all over the world still allow it to be used for curing meat, but the dosage is strictly limited.
Is food-grade sodium nitrite toxic? Can food-grade sodium nitrite kill people? Food grade sodium nitrite
Properties: white or yellowish diamond crystal or powder, molecular formula NaNo2, melting point 2765438 0℃, slightly salty, easily deliquescent, soluble in water, alkaline in aqueous solution, slowly oxidized to sodium nitrate in air. If it is added to food according to regulations, excessive intake will cause harm to human body.
Uses: Used as color developer in meat processing.
Too much is not good.
What is the difference between food-grade sodium nitrite and sodium nitrite? Food grade can't die.
Eating too much sodium nitrite will cause cancer, especially in industry.
What is the difference between food sodium nitrite and industrial sodium nitrite? The main component of both is the same substance. Food-grade sodium nitrite is refined with high purity and can also be used in industry, but the cost will be slightly higher. Industrial sodium nitrite contains a certain amount of impurities and cannot be used in food.
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Can the food containing sodium nitrite be poisoned if you eat too much? No matter what you eat too much, it is harmful, not to mention chemically synthesized sodium nitrite, which is an industrial salt. Although it is similar to salt, that is, sodium chloride, it is toxic and inedible. Sodium nitrite is highly toxic. People may have poisoning symptoms if they eat 0.2 g to 0.5 g, and they may die if they eat 3 g by mistake once. The characteristics of sodium nitrite poisoning are cyanosis, and the symptoms and signs include headache, dizziness, fatigue, chest tightness, shortness of breath, palpitation, nausea, vomiting, abdominal pain, diarrhea, cyanosis of lips, nails, whole body plates and mucous membranes. Even convulsions and coma, even life-threatening in severe cases. The reason why sodium nitrite is poisoned is because the iron contained in hemoglobin in human body is ferrous, which can combine with oxygen and transport oxygen to all parts of the body with blood circulation. When sodium nitrite is eaten by mistake, there will be a chemical reaction in the blood, which will convert hemoglobin into iron hemoglobin. Hemoglobin of ferric iron can't carry oxygen, so it causes hypoxia poisoning in human body.
At present, sodium nitrite is widely used in bacon and pickles in China. According to GB 1907, the maximum consumption of meat is 0. 15g/kg, and the residue of sodium nitrite in meat should not exceed 0.05g/kg；. In canned food. Meat products shall not exceed 0.03g/. The safe intake standard of sodium nitrite issued by the World Scientific Committee on Food Hygiene 1992 is 0 ~ 0. 1 ㎎/㎏ body weight; If converted into nitrite, the standard is 0 ~ 4.2 ㎎/60 kg body weight. If used and eaten according to this standard, it will not cause harm to the human body.
Is food-grade sodium nitrite Y toxic? Can food-grade sodium nitrite kill people? Food-grade sodium nitrite is also toxic, but the low content is not toxic to people.
Ham sausage contains sodium nitrite. What is the harm to human body?
The common nitrites in life are NaNO2 and KNO2, which are white or yellowish crystals (or granular powder), slightly salty and astringent in taste, easily soluble in water, and very similar to salt, so they are called industrial salt.
Nitrite is a strong oxidant, which will combine with hemoglobin after entering the blood, turning oxygenated hemoglobin into methemoglobin, thus making hemoglobin lose its oxygen-carrying ability, leading to tissue hypoxia and peripheral blood vessel dilatation. Headache, dizziness, fatigue, chest tightness, shortness of breath, palpitation, nausea, vomiting, abdominal pain, diarrhea, whole body plate, etc. occur after oral administration of nitrite/kloc-for 0/0 minute to 3 hours. It could happen. In severe cases, there will be loss of consciousness, coma, respiratory failure and even death. After poisoning, vomiting, gastric lavage and catharsis should be performed as soon as possible, and the antidote methylene blue (Meilan) and vitamin C should be taken. A certain amount of new blood can be injected into critically ill patients, and hypotensive shock should be treated in time, acidosis should be corrected, and symptomatic treatment such as oxygen inhalation should be taken. The harm of nitrite is not only toxic to people, but also carcinogenic. Nitrite can react with secondary amines in food or stomach to form ammonium nitrite, which can cause cancer. Therefore, we should eat more garlic (containing allicin), tea (containing tea polyphenols) and foods rich in vitamin C. Vitamin C can prevent the formation of ammonium nitrite in the stomach or inhibit the carcinogenic mutation of ammonium nitrite.
Sodium nitrite is an industrial salt, so why does sodium nitrite often appear in pickled food because of the decrease of nitrate in vegetables and meat itself? In the process of curing and cooking vegetables and meat, cells are killed, and the enzyme whose activity was initially inhibited (can be understood as locked) is released, which catalyzes the reduction of nitrate contained in the body to nitrite.
What harm does sodium nitrite do to the body? Xinxiang Zhongxin Chemical Reply: Food poisoning-the toxic side effect of excessive food intake is to paralyze the vascular movement center, respiratory center and surrounding blood vessels and form methemoglobin. Acute poisoning is characterized by general weakness, headache, dizziness, nausea, vomiting, diarrhea, chest tightness and dyspnea; The facial mucosa is cyanotic obviously. In severe cases, blood pressure drops, coma and death occur. In addition, sodium nitrite can also produce carcinogens in the human body.
Contact poisoning-long-term panel contact, hands slightly yellow phenomenon, just wear gloves, in short, do not contact directly. It should be noted that sodium nitrite is mainly used in the industrial field and cannot be used in the food field. Hope to help the landlord!