Popular science small knowledge: disinfection misunderstanding, you in a few?

After experiencing the fear of being dominated by the virus, people pay more and more attention to personal protection, and do not want to "catch the disease in the mouth". In addition to washing their hands frequently, they should also carry out disinfection when necessary.

However, in daily life, many people's disinfection methods are actually wrong, and excessive disinfection is likely to backfire, serious poisoning.

In doing a good job of scientific disinfection at the same time, but also to avoid into disinfection mistakes, xiaobian carefully organized the misunderstanding of home disinfection pit avoidance guide, come to see you in a few ~~

If there are no visitors to the home and no self-isolated suspected symptoms, there is no need to disinfect every day, but regularly. Regular ventilation, wash hands frequently, do a good job of cleaning, disinfectants do not abuse, reasonable use.

If you have taken a bus, subway or taxi, especially if you have just come back from a crowded place such as a hospital, wash your clothes with a clothing disinfectant.

It is rumored that the acetic acid in vinegar can destroy the structure of the virus and produce the effect of killing the virus.  But the acetic acid content in vinegar is generally low, far from reaching the function of sterilization and disinfection.  Steamed vinegar does not have a good effect on novel coronavirus.

Answer: No.

84 disinfectant is the main component of sodium hypochlorite (NaClO), sodium hypochlorite is hydrolyzed in water to produce hypochloric acid, it is a strong oxidant, can kill bacteria.

When it is mixed with laundry detergent, although it basically does not react with the main component of laundry detergent "surfactant", it will react with benzyl alcohol, which is the component of the softener in laundry detergent, and oxidize it into benzaldehyde or even benzoic acid, while producing chlorine, which increases the concentration of chlorine in the air and may cause poisoning.

Adding too much 84 disinfectant will inhibit the activity of protease added in laundry detergent and reduce the washing effect.  If the washing is cotton, hemp, silk, wool textiles, adding 84 disinfectant will make clothes fade.

So, 84 disinfectant mixed with 75% alcohol solution, can achieve double bactericidal effect?

The answer is no. Experimental results show that 84 disinfectant and alcohol will react to produce chlorine gas, but also detected chloroform production.  Therefore, mixed use is not recommended.

In addition, 84 disinfectant also avoid by all means mixed with clean toilet spirit. The main ingredient is hydrochloric acid, which produces chlorine gas when the two are mixed.  Chlorine gas is a toxic gas, volatile, chlorine poisoning light may cause cough, chest distress, serious may appear dyspnea.

Therefore, when using disinfectants and cleaners, it is good to choose one at a time, and do not always think about the combination of strong and strong.

75% alcohol disinfectant has a low flash point and is a category A fire hazard. 

Spray type disinfection is prohibited when indoor use, should adopt wipe method and avoid to asperse leak.  Keep the room well ventilated in case of fire.  Open fire must be prohibited when spraying disinfection method is adopted outdoors to prevent excessive local spraying concentration and combustion risk.

（PS：Disinfectants can corrode objects, especially metals, and stimulate human body.  After using disinfectant for half an hour, clean the surface with water. ）

Disinfectants are generally very irritating and may cause respiratory tract and skin damage. hen mixing and applying disinfectants,  it is advisable to wear a mask and rubber gloves. 

It is medically confirmed that the virus is sensitive to heat, but the Novel coronavirus is inactivated only after being kept in water at 56 °C for about 30 minutes.  Novel coronavirus cannot be inactivated in winter at room temperature (around 23°C) or in a hot bath (water temperature above 40°C).

The above is a few disinfection misunderstandings, disinfection is an effective way of epidemic prevention and control.  In daily life, we do not need to disinfect every day, just need to regularly use alcohol, 84 and other cheap large bowls of disinfectant disinfection can be.  Travel with a face mask, disposable alcohol gel or air purification card.

Secretly tell you, alcohol, 84, in the home, in addition to disinfection, but also a lot of benefits oh ~~

- Alcohol wipe mirrors, door handles and switches, sterilization can also remove regular contact left by the hand grease;  Used to erase glue marks is also very good;

- 84 bleaching effect is used to remove mildew, local rinsing white clothes are very good;  And use it to scrub vases, eliminate bacteria left by rotten roots, and the next flower arrangement will last longer.