Hydrogen peroxide, also called hydrogen peroxide, is a strong oxidant. In hospitals, when treating abrasions, sometimes a medical hydrogen peroxide solution with a concentration of 3.0% is used for disinfection. Therefore, there is no doubt Yes, a certain concentration of hydrogen peroxide solution (such as 3.0% concentration) has a clear effect on disinfection and sterilization.
The killing effect of hydrogen peroxide on bacteria and viruses is mainly derived from its strong oxidizing property. When hydrogen peroxide comes into contact with microorganisms, it can quickly decompose new ecological oxygen, which can enter the microorganisms. Denature the related enzymes of bacteria or destroy the nucleic acid structure of the virus, thereby killing the bacteria and inactivating the virus.
So can hydrogen peroxide effectively kill the new coronavirus? The answer is yes. According to the information released by the National Center for Disease Control and Prevention, the new coronavirus is sensitive to heat and can be inactivated at 56°C in 30 minutes, while 75% alcohol, peracetic acid, and chlorine-containing disinfectants (except chlorhexidine) ) Can effectively kill the new type of coronavirus. There is no mention of hydrogen peroxide, so some friends say that hydrogen peroxide cannot kill the virus when answering this question. This rigid dogma is very undesirable. Yes, hydrogen peroxide, like peracetic acid, is an oxidizing disinfectant that destroys the nucleic acid structure of the virus through strong oxidization, so as to achieve the effect of inactivating the virus. Peracetic acid can kill the coronavirus. Of course, hydrogen peroxide can.
There are various concentrations of hydrogen peroxide. The hydrogen peroxide solution that is usually available has a concentration of about 30%. For general medical hydrogen peroxide solutions, the concentration is about 3.0%. 3% concentration of hydrogen peroxide can be effective Kills all kinds of bacteria. For the new coronavirus, this concentration is also an effective kill concentration. In the pharmaceutical industry, there is also a 6% hydrogen peroxide. This concentration of hydrogen peroxide has a stronger disinfection effect. Fungal spores, bacterial spores and other microorganisms that are usually difficult to kill, also have good disinfection and killing effects. However, our common medical hydrogen peroxide solution with a concentration of 3.0% is sufficient for killing the new coronavirus.
The 3.0% hydrogen peroxide solution exerts its sterilization effect through its strong oxidation, and finally decomposes into oxygen and water. It has no pollution to the environment and no residue. It is a very good choice for coronavirus disinfectant, which can disinfect items. Clothing disinfection is a good choice. Generally, spray spraying or washing and soaking can be used for disinfection. In this way, the new coronavirus can be quickly inactivated and achieve a good disinfection effect.
It should be noted that hydrogen peroxide is a very active substance, especially under heat and light conditions, it is easy to decompose, resulting in a decrease in concentration and affecting its sterilization and disinfection effects. Therefore, for 3.0% of the finished products The hydrogen oxide solution should be stored in a shaded, cool place within the validity period.
If you have a 30% hydrogen peroxide solution at home, you can use it after diluting 10 times with water (preferably cool purified water). Also, avoid light and heat, so as not to cause the concentration of disinfectant to drop. No disinfection effect. One more thing to note is that when preparing a disinfectant concentration of hydrogen peroxide solution, you must pay attention to protection, wear gloves, masks and goggles, try to avoid high concentration of hydrogen peroxide splashing on the skin, mucous membranes, and eyes. If it is contaminated on the skin, it must be rinsed with clean water as soon as possible for at least 5 minutes. During use, due to the relatively low concentration of 3% hydrogen peroxide, its corrosiveness is also reduced and the skin is less harmful , But also pay attention to safety and do relevant protection.
