Can 70 alcohol disinfect, 70 alcohol can disinfect

It is recommended to use 75% alcohol for better results! 70's can also be sterilized.

70% alcohol can be disinfected, but the disinfection effect is not as good as 75% alcohol. The principle of alcohol disinfection is to use alcohol to enter the cell membrane of bacteria and disinfect and sterilize by coagulating proteins, but the concentration must be maintained at 75%. Although 70% can be used for ordinary sterilization, medical sterilization is still mainly based on 75% alcohol.

70% alcohol can be disinfected, but its disinfection effect is still not as good as the disinfection effect of 75% alcohol, so some stubborn bacteria or viruses may not be eliminated by 70% alcohol, but most of the viruses can still be eliminated, and 75% alcohol is still the main disinfection at ordinary times.

Alcohol can only achieve the best concentration of disinfection at 75%, because the principle of alcohol disinfection is that alcohol needs to enter the cell membrane of viruses and bacteria, and about 75% alcohol can enter the cell and cause cell denaturation, and achieve the purpose of disinfection and sterilization by coagulation of proteins.

70% is used for daily disinfection, but 75% alcohol is required for disinfection of medical supplies and the environment. If you don't have 75% alcohol at home but only 70% alcohol, you can also distill it to get high-purity alcohol, and then dilute it to get 75% alcohol.

70% alcohol disinfection effect is not optimal, the best alcohol disinfection effect is 75.

Reason: When the alcohol concentration is 75%, a bottle of alcohol volatilizes very quickly after opening the lid, and the concentration will quickly decrease, affecting the disinfection effect. Too high a concentration of alcohol will form a protective film on the surface of the bacteria, preventing it from entering the bacteria, and it is difficult to completely kill the bacteria.

If the alcohol concentration is too low, it can enter the bacteria, but it cannot coagulate the proteins in the body, and it is also not possible to completely kill the bacteria.

In addition, excessive disinfection will lead to a significant reduction in bacteria in the normal living environment, which will lead to the body's immune system not being "trained", and in the future, encountering some bacteria and viruses will cause immune imbalance and allergic diseases.

Medical alcohol also does not disinfect bleeding wounds. The reason is that the principle of alcohol disinfection is to achieve the effect of sterilization and disinfection through protein denaturation. However, although this method is good, because it does not distinguish between normal human cell proteins and bacterial proteins, all of them are destroyed and destroyed, causing secondary damage, which affects the normal healing time of wounds to a certain extent.

The flash point of 75% medical alcohol (the lowest temperature at which the mixture and the flame are in contact with combustion) is about 22 °C, and the fire hazard belongs to Class A, so do not spray alcohol with a watering can when disinfecting at home.

If Suichun encounters open flames such as smoking, cooking, or even static electricity on clothes, it may cause fire** and other teasing dangers. The correct way to do this is to wipe our shoes, mobile phones, handrails, doorknobs or mop the floor with a cotton towel or cloth dipped in alcohol.

Yes, disinfectant alcohol must be 75% to be effective, this is because it has been verified in clinical data that if the alcohol content is above 75%, it is the most ideal sterilization effect, if it is lower than this value, then the sterilization effect will be reduced. The main function of sterilized alcohol is that it can absorb the moisture of bacterial proteins, and cause it to dehydrate and coagulate, achieving a sterilizing effect. <>

If the concentration is too high, it will lead to the deterioration of bacterial proteins, and there is no way to achieve the sterilization effect. 75% alcohol is very similar to the osmotic pressure of bacteria, so if the protein on the surface of the bacteria does not gradually penetrate deeper into the bacteria, then we can use disinfectant alcohol to dehydrate and solidify the bacteria's proteins, and finally kill the bacteria completely. If it is at 75%, then the permeability will be reduced, which will affect the sterilization effect.

Therefore, through the above introduction, you should be able to understand whether the ability of alcohol to kill bacteria is strong or weak, mainly depends on the concentration of alcohol, too high and too low are not allowed, and the best effect is 75% alcohol concentration. Many people ask, so does liquor have a disinfection effect, in fact, liquor can also be disinfected, but the alcohol content of general liquor is less than 65%, so although the alcohol content has a certain sterilization effect, but the alcohol concentration is relatively low, and the sterilization effect is not particularly good, so it is not recommended to use liquor to disinfect. <>

Here we also want to remind everyone not to use industrial alcohol to disinfection, because industrial alcohol has an impact on our health, if it is absorbed, it will affect the health of the body's organs, and will lead to the destruction of the central visual nerve and the central nervous system. Therefore, you must not use industrial alcohol to disinfect, so as not to bring harm to the health of the body, so that it is too late to regret it.