The physical and chemical properties of nitrogen

Categories:Nitrogen knowledge
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Time of issue:2019-01-29 16:57
Views:151

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The physical and chemical properties of nitrogen

(Summary description)Nitrogen, whose chemical formula is N2, is a colorless and odorless gas under normal conditions. Generally, nitrogen is less dense than air. Nitrogen accounts for 78.08% (volume fraction) of the total atmosphere and is the main component of air. Under standard atmospheric pressure, when cooled to -195.8°C, it becomes a colorless liquid, and when cooled to -209.8°C, 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, it can undergo chemical changes with certain substances under high temperature and high energy conditions to produce new substances useful to humans.

Categories:Nitrogen knowledge
Author:
Origin:
Time of issue:2019-01-29 16:57
Views:151

Information

It can remove oxygen and moisture in the grain pile. When the nitrogen concentration reaches about 99%, the effect of inhibiting mold is significant. Nitrogen, whose chemical formula is N2, is a colorless and odorless gas under normal conditions. Generally, nitrogen is less dense than air.

Nitrogen accounts for 78.08% (volume fraction) of the total atmosphere and is the main component of air. Under standard atmospheric pressure, when cooled to -195.8°C, it becomes a colorless liquid, and when cooled to -209.8°C, 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, it can undergo chemical changes with certain substances under high temperature and high energy conditions to produce new substances useful to humans.