1, alcohol belongs to the weak acidity, its acidity is very weak, neither can have a chemical reaction with alkali, nor can make acid-base indicator change color.
2, alcohol is a colorless transparent liquid, flammable, volatile, very versatile. Concentration of 99.5% or more alcohol can be extracted from the chloroplasts in the pigment; concentration of 95% alcohol can be used for ultraviolet lamps and other medical equipment, wipe; concentration of 75% alcohol can be disinfected; concentration of 50% alcohol can promote local blood circulation, prevention of pressure ulcers; concentration of 25% to 50% alcohol can be used for physical cooling. In addition, alcohol can also be applied to fuel, flavors, beverages and so on.