A, hypochlorous acid disinfectant
Advantages: hypochlorous acid disinfectant has the advantages of high efficiency, wide bactericidal spectrum, safety, non-toxicity, wide application scenarios, no residue after action, and no drug resistance after long-term use. Viruses and bacteria that can be killed are wider than alcohol and 84 disinfectant, and will become water after action.
Disadvantages: The disadvantage of hypochlorous acid disinfectant is unstable and unsustainable. Hypochloric acid is easy to decompose and needs to be stored away from light. When hypochlorous acid disinfectant is stored for a long time, the light will lose its function, and the disinfectant will lose its own disinfection function, sterilization rate, sterilization efficiency and other properties. Hypochloric acid will become water after reacting with harmful microorganisms, and it has no disinfection effect. Therefore, it is suggested to periodically circulate disinfection according to actual needs.
Second, alcohol disinfectant
Advantages: The ethanol disinfectant is 75% medical alcohol, and its main component is ethanol. 75% alcohol is mainly used for disinfection of skin and body surface. Alcohol can denature and inactivate protein, so the sterilization effect of alcohol with high bacterial concentration will be weakened. So 75% alcohol is commonly used in clinic.
Disadvantages: Volatility leads to the decrease of alcohol concentration, which leads to the decrease of sterilization effect. Can not kill bacterial spores, can only be used as a general disinfectant. Alcohol is a neutral disinfectant, which can kill most bacteria, but can't kill bacterial spores, and can't inactivate hepatitis B virus in a short time. Super penetration will dehydrate skin cells, and high volatility will take away skin moisture, resulting in dry and rough skin and loss of elasticity.
Third, the difference between them.
1, their sterilization principles are different.
The sterilization principle of alcohol disinfectant is to dehydrate the protein of bacteria, thus destroying the cell membrane of bacteria and making its protein coagulate and lose its activity. Before the germ protein is completely solidified, the alcohol disinfectant penetrates into the germ and kills the germ. But for viruses, although alcohol disinfectants can denature the protein of the virus, they can't make the nucleic acid of the virus disappear completely, so it is difficult for the virus to be completely killed by alcohol.
Disinfection principle of hypochlorous acid disinfectant: mainly using the oxidation ability of hypochlorous acid. After the hypochlorous acid disinfectant (agent) comes into contact with bacteria and viruses, it quickly destroys the cell membranes of bacteria and viruses, and then kills them. Its bactericidal performance is relatively fast, and it has a good bactericidal effect on both bacteria and viruses.
2. The scope of use of the two is different.
Application scope of alcohol disinfectant: human epidermis, wounds, wounds, various daily necessities, floors, mops, appliances, etc.
Application scope of hypochlorous acid disinfectant: In addition to the application scope of the above-mentioned alcohol disinfectant, hypochlorous acid disinfectant can also be used for drinking water treatment, swimming pool disinfection, sewage and wastewater treatment, food processing disinfection, contaminated food treatment and medical disinfection, and can also be used as bleaching agent, oxidant and deodorant.
3. Different stimuli to human respiratory tract.
Alcohol disinfectant: it has a pungent smell, and it is easy to cause discomfort when inhaled into nasal cavity.
Hypochloric acid disinfectant: colorless and odorless, inhalation is not irritating to human respiratory tract.
To sum up, although both alcohol disinfectant and hypochlorous acid disinfectant can be used as protective disinfection products, their sterilization principles are different. In daily personal and family protection, everyone should choose according to the actual situation.