Why is one bite of pure nitrogen lethal?

Nitrogen, the main component of the air, is non-toxic, but inhalation of pure nitrogen can cause death due to lack of oxygen.

I don't know, but pure nitrogen is inert, and when inhaled into the lungs, does it form a barrier that prevents normal breathing?

Ask your teacher.

Nitrogen is a direct asphyxiating gas along with carbon dioxide, methane, acetylene, neon, etc. It is characterized by suffocation due to a decrease in the oxygen content of the air due to an increase in its own concentration. Generally, when the oxygen content in the air is less than 18%, a suffocation accident will occur.

Nitrogen itself is not very harmful to the human body, if the nitrogen concentration is slightly high, personnel will have mild headache, nausea, vomiting, hallucinations and excitement.

In such cases, if the ventilation conditions are improved early and in time, the patient will recover quickly on his own. If the nitrogen content continues to increase, the oxygen content in the air is reduced, making it difficult for the person to breathe. If pure nitrogen is inhaled, it can cause suffocation and even death due to severe lack of oxygen.

Precautions for using nitrogen

When nitrogen is tested for air tightness, the equipment and pipelines must be divided according to the pressure level, and blind plates must be added to isolate each other and the connecting valves outside the system to prevent blow-by gas from damaging others; The safety valve is in good condition, remove all overrange instruments or close the root valve to prevent damage to the instrument, equipment and pipeline caused by overpressure.

There should be a special person to monitor the filling process to prevent overtemperature and overpressure, and the selected test force is a multiple of the operating force. During the operation, other workers on site in the relevant system should be evacuated, and the station of the inspection personnel should pay attention to the side and opposite sides of the flange (cover). In addition, the treatment of the leakage point should be carried out after the pressure is relieved, and it is strictly forbidden to deal with pressure.

The above content refers to Encyclopedia - Nitrogen.

Because there is no oxygen in pure nitrogen. When the nitrogen content in the air increases (>84), the oxygen in the air can be removed, resulting in insufficient inhaled oxygen, and the person feels poor breathing and a sense of suffocation. High concentrations of nitrogen (>90) can cause hypoxia symptoms.

Nitrogen, with the chemical formula N, is a colorless and odorless gas. The chemical properties of nitrogen are very inactive, and it can only react with hydrogen to form ammonia under high temperature, high pressure and catalyst conditions; In the case of discharge, it can be combined with oxygen to form nitric oxide; Even reactive metals such as Ca, Mg, Sr, and Ba can only react with them when heated.

This high chemical stability of nitrogen is related to its molecular structure. 2 n atoms combine with triple bonds to form a nitrogen molecule, which contains 1 bond and 2 bonds, because in the chemical reaction it is the bond that is attacked first, and in the n molecule the energy level of the bond is lower than the bond, and it is difficult to open the bond, thus making it difficult for n to participate in the chemical reaction.

Because nitrogen can exclude oxygen. If you inhale pure nitrogen, oxygen will be excreted and cause suffocation, so pure nitrogen will be poured after taking a sip. Nitrogen is a colorless, tasteless, odorless inert gas, which is chemically inactive and very inert in normal conditions, and is not easy to react with other substances.

Nitrogen can only react with hydrogen under the action of high temperature and high pressure and catalyst to produce ammonia. Laughing gas is composed of nitrogen oxides, which has an anesthetic effect, but inhaling too much laughing gas will become addictive and affect physical health.

The important role of nitrogen

There are 70% of nitrogen in the atmosphere, if nitrogen is toxic, we have already over, the chemical properties are colorless, odorless and tasteless, compressible to high pressure gas, soluble in water, slightly soluble in alcohol, used for the production of nitric acid, synthetic ammonia, calcium cyanamide and other uses for electrical appliances, food packaging filling gas, semiconductor device preparation process in thermal oxidation, epitaxial diffusion, chemical vapor deposition, etc.

It can also be used for gas chromatographs, for the extraction and freezing of rare gases, cryogenic treatment of instruments or parts, etc., and can be used as shielding gas for large-scale integrated circuits, and used as air and oxygen dispersants for bulb filling and other purposes.

Because inhalation of pure nitrogen can cause death due to lack of oxygen. There is 21% oxygen in the air, and more than 70% is nitrogen, so when the nitrogen content of the human body increases significantly, the oxygen content will decrease, and after the inhaled oxygen is reduced, various organs including the heart, liver, lungs, kidneys, etc. will be in a state of hypoxia.

If the human body does not receive oxygen supply at this time, rapid lack of oxygen will lead to suffocation, which is also rapid and easy to cause death.

Inhalation of nitrogen human body reaction

It is one of the main components of air, accounting for the total amount of the atmosphere, and its chemical formula is N2. It stands to reason that nitrogen is non-toxic, but some people say that inhaling too much can even kill people, so many people wonder: Is nitrogen toxic?

Let's take a look. Nitrogen is a colorless and odorless gas, and it is non-toxic. However, although it is non-toxic, if the nitrogen content in the air is too high, the oxygen inhaled will decrease, and then the person will be suffocated by lack of oxygen.

Therefore, although nitrogen is not toxic, it should not be inhaled too much, otherwise it will hurt people more than poisonous gas.

Symptoms of excessive nitrogen inhalation: When the concentration of inhaled nitrogen is not too high, people will feel chest tightness, shortness of breath, weakness, and if they continue to inhale, they will have symptoms such as irritability, extreme excitement, running around, shouting, trance, and unsteady gait, and then they will enter a coma or coma; When high concentrations of nitrogen are inhaled, the person quickly falls into a coma and then dies due to the arrest of breathing and heartbeat.

1. When all the inhaled nitrogen is exhaled, it becomes less, because the exhaled gas contains much more water vapor than the air, but the volume of exhaled gas is greater than the volume of inhaled gas, so although the total amount of nitrogen remains the same, the volume fraction of nitrogen eventually decreases due to the increase in the total amount of gas.

Nitrogen, with the chemical formula N2, is usually a colorless and odorless gas, and nitrogen is generally less dense than air. nitrogen is the main component of air. At standard atmospheric pressure, when cooled, it becomes a colorless liquid, and when cooled, liquid nitrogen becomes a snow-like solid.

Nitrogen is chemically inactive, and it is difficult to react with other substances at room temperature, so it is often used to make preservatives. However, under high temperature and high energy conditions, it can undergo chemical changes with certain substances and be used to make new substances useful to human beings.

Nitrogen is a colorless and odorless gas under normal conditions, accounting for about 78% of the volume fraction of air (about 21% of oxygen), and only about the volume of nitrogen is dissolved in 1 volume of water. Nitrogen is a gas that is difficult to liquefy. Nitrogen liquefies into a colorless liquid at very low temperatures, and when the temperature is further reduced, it forms a white crystalline solid.