Cationic surface activity-benzalkonium chloride! Preventing new crown virus is a good idea!
Since the outbreak of pneumonia caused by the new coronavirus, the demand for medical disinfection alcohol and other materials has increased sharply. Many citizens have stocked medical alcohol at home for self-disinfection. However, some recent "news" have caused concern about it: the "news" of "alcohol disinfection caused a fire" is spread all over the country ...
Medical alcohol is the most common virus killer. According to the "Diagnosis and Treatment of Pneumonia Caused by a New Coronavirus (Trial Version 3)", 75% alcohol can effectively inactivate the virus. However, it should be noted that 75% alcohol can effectively sterilize and it is indeed easy to cause fire! When using alcohol-based disinfectants, open flames must be avoided. Wipe disinfection is better than spray disinfection. Because a large amount of alcohol is sprayed on a part or in an enclosed space, once it encounters an open flame or other high-energy ignition source, it may cause a fire or explosion.
As the epidemic progressed, medical alcohol had been sold out. Many people are concerned about whether other disinfectants can be used instead. Some people on the Internet have said that China's high-grade liquor can be used. Some netizens tease and encourage everyone to drink more alcohol to disinfect. Of course, the alcohol content is generally between 50% and 60%. In comparison, this concentration of alcohol also has a certain bactericidal effect, but its sterilizing ability is limited. Don't blindly follow the trend and drink high-level liquor. Drinking liquor does not have any disinfection and defense functions. For rooms, floors, and surfaces that may be contaminated, other disinfectants such as 84 disinfectant, bleach and other chlorine-containing disinfectants are also very effective.
However, it should be noted that the 84 disinfectant must be diluted before use. Wear gloves, and use it with the current one-time use. Do not use hot water for dilution! It will promote the volatilization of chlorine and affect the disinfection effect. It will also increase the amount of chlorine in the air and lead to the risk of poisoning by inhaling too much into the body.
After many comparisons and consultations, I recommend a safe disinfectant solution-benzalkonium chloride solution.
The public is relatively unfamiliar with this disinfectant, but benzalkonium chloride solution has actually been used in all aspects of our lives. At the same time, the latest "Pneumonitis Diagnosis and Treatment Scheme for New Coronavirus Infection (Trial Fifth Edition)" clearly states that chlorine-containing disinfectants can effectively inactivate the virus. Benzalkonium chloride is a quaternary ammonium salt cationic surfactant and a disinfectant solution containing chlorine. It consists of n-alkyl substituted dimethylbenzyl ammonium chloride homologues.