Isopropyl alcohol is also known as fire wine, dimethyl methanol, 2-propanol, English: isopropylalcohol, the simplest secondary alcohol, and one of the isomers of n-propanol. A colorless, flammable liquid with a strong odor, similar to the smell of a mixture of ethanol and acetone, but not very strong. It is soluble in most organic solvents such as water, alcohol, ether, benzene, chloroform, etc., and can be miscible with water, alcohol, ether, and can form an azeotrope with water. Density (specific gravity): 0.7863g/cm3, melting point Chemicalbook: -88.5℃, boiling point: 82.5℃, flash point: 11.7℃, autoignition point: 460℃, refractive index: 1.3772. Its vapor can cause slight irritation to the eyes, nose and throat; it can be absorbed by the human body through the skin. Its vapor can form an explosive mixture with air. The explosion limit is 2.0%~12% (volume). It is a medium explosive dangerous item. It is a flammable and low-toxic substance. The toxicity of its vapor is twice that of ethanol, and the toxicity is the opposite when taken orally.