Alcohol at a concentration of 75% can kill the new coronavirus, but the exact duration of action is affected by the method of using alcohol, the ambient temperature and other factors. Usually, when disinfecting the surface of objects, the new crown virus will be killed in 1~2 minutes under the action of 75% alcohol.
Too high or too low alcohol concentration will affect the disinfection effect. If the concentration is too high, it will form a protective film on the surface of the pathogenic microorganisms, resulting in alcohol can not enter the pathogenic microorganisms, and can not play a good disinfection effect. If the concentration is too low, although it can enter the pathogenic microorganisms, but not enough to kill the pathogenic microorganisms, also can not play a good disinfection effect.
In addition, ultraviolet light, high-temperature heating, ether, chlorine disinfectant, peroxyacetic acid and chloroform can also be used to kill the new coronavirus.