Tiandi first and outline the health hazards to the human body when the nitrogen concentration is too high
Nitrogen is a colorless, odorless gas under normal conditions and is generally non-toxic. Nitrogen accounts for 78.12% (volume fraction) of the total air, and the gas density under standard conditions is 1.25 g/L, and the density is slightly smaller than that of air. Nitrogen is hardly soluble in water. At normal temperature and pressure, only about 0.02 volumes of nitrogen are 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 it is further lowered, a white crystalline solid forms. In production, a black steel cylinder is usually used to hold nitrogen.
Nitrogen health hazard: The nitrogen content in the air is too high, causing the partial pressure of oxygen inhaled to drop, causing hypoxia and suffocation. When the concentration of inhaled nitrogen is not too high, the patient initially feels chest tightness, shortness of breath, weakness and weakness; then there is irritability, extreme excitement, running, screaming, screaming, gait instability, called "nitrogen sputum", can enter drowsiness Or coma. When inhaled at a high concentration, the patient can quickly stun and die due to breathing and heartbeat.
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