Ozone (O₃), also known as super oxygen, is an allotrope of oxygen (O₂). At room temperature, it is a light blue gas with a special smell. Ozone mainly exists in the ozone layer in the lower stratosphere, which is 20 to 35 kilometers away from the earth's surface. Under normal temperature and pressure, it has poor stability and can be decomposed into oxygen by itself. Ozone has the smell of grass. Inhaling a small amount is good for humans. Inhaling too much is harmful to human health (non-flammable, pure). Oxygen can be turned into ozone by electric shock.
Ozone is an allotrope of oxygen. At room temperature, it has a special smell.
Light blue gas. The English word ozone (Ozone) is derived from the Greek word ozon, which means "smell".
Ozone mainly exists in the ozone layer in the lower stratosphere 20 kilometers from the earth's surface, and the content is about 50 ppm. It absorbs short-wave ultraviolet rays that are harmful to the human body and prevents them from reaching the earth, so as to shield the earth's surface organisms from ultraviolet rays.
In the atmosphere, oxygen molecules are decomposed into oxygen atoms (O) due to high-energy radiation, and the oxygen atoms combine with another oxygen molecule to generate ozone. Ozone will react with oxygen atoms, chlorine or other free substances to decompose and disappear. Due to this repeated generation and disappearance, the ozone content can be maintained in a certain equilibrium state.