Nitric Oxide (NO) is a colorless and odorless gas that is slightly soluble in water, soluble in ethanol and carbon disulfide, and the chemical formula is NO. It is widely present in nature and plays an important role in signaling molecules in organisms. As a gas molecule, nitric oxide participates in a variety of physiological processes in the human body, including vasodilation, neurotransmission, immune response and cell apoptosis. Its vascular dilation effect has clinical application in the treatment of cardiovascular diseases such as hypertension and pulmonary hypertension.
In industry, nitric oxide is a key raw material for the production of nitric acid and other nitrogen oxides, and is one of the main pollutants in automobile exhaust. Due to its potential harm to the environment, reducing NO emissions has become an important research direction for modern pollution control technology.
The unique properties of nitric oxide make it an object of extensive research in the fields of chemistry, medicine and environmental science, especially in catalysis, immunology and physiology.