During the epidemic, is it okay to mop the floor of the house with 42-percent alcohol? Why?

It is very difficult to buy alcohol now. Some friends are asking: "If I can't buy alcohol, can I use high-strength liquor instead of alcohol to kill the virus?"

The answer is: "No."

We know that alcohol is ethanol. When used for disinfection, medical alcohol with an alcohol concentration of 75 is generally used, which has the best disinfection and sterilization effect.

Why is only 75% of alcohol effective at killing the new coronavirus?

If the concentration of alcohol is too high, when it comes into contact with the surface of the bacteria, the protein will quickly solidify and form a protective film to prevent the penetration of alcohol. The nucleic acid cannot be denatured and the virus cannot be inactivated. Only 75% alcohol can effectively penetrate and successfully inactivate the new coronavirus.

Why can’t liquor kill the new coronavirus?

Experts point out that only 75% medical alcohol can effectively inactivate the new coronavirus.

The alcohol content of most liquors is less than 65, which is not enough to achieve the inactivation degree. Too high an alcohol content will accelerate protein coagulation, while too low an alcohol content will reduce the permeability, and it will also not be able to effectively inactivate. Live virus.

In addition, the main components of medical alcohol are ethanol and water. Even if it is liquor with a high concentration of 75%, in addition to alcohol and water, its ingredients also include other complex ingredients such as organic acids, which may affect the inactivation effect.

In addition, some people think that drinking high-altitude liquor can kill the new coronavirus, which is wrong. No matter how high the alcoholic content is, it will have no antiseptic effect when consumed in the stomach. In short, liquor cannot replace medical alcohol to kill the new coronavirus.

The chemical name of alcohol is ethanol, with the chemical formula C2H5OH. It is generally produced through starch fermentation or chemical synthesis. Its main functions are extensive. In addition to making wine as we know, it can also make industrial raw materials (such as industrial extraction of cooking oil), disinfection supplies (this is the disinfection we are talking about), and beverage supplies (common white wine, red wine) , organic raw materials (ethanol gasoline).

This section focuses on disinfection. The principle of alcohol disinfection is relatively simple. Generally, living organisms have proteins, and alcohol can coagulate and denature proteins, thereby eliminating some bacteria, microorganisms, and viruses.

Alcohol can indeed disinfect, but there is knowledge about this:

(1) Above 99.5 is called absolute alcohol. Mainly for laboratory and industrial use. .

(2) 95% alcohol is used to wipe the UV lamp. Daily use for wiping lenses.

(3) 70-75 alcohol is used for disinfection. If the concentration is high, it will not easily enter the bacteria. If the concentration is low, it will not coagulate the protein well, and it will also not be able to completely kill the bacteria. 75% alcohol has the best disinfection effect.

(4) 40-50% alcohol can prevent bedsores. Used to wipe body parts, not only blood circulation.

(5) 25-50% alcohol is used for physical cooling, such as fever, etc., it can be used.

42% alcohol is 42% alcohol. If it is used for disinfection, it will definitely not be very effective, but you can drink it in moderation. Drinking a little bit here does not mean that it is disinfecting the body, but because the alcohol It contains not only alcohol, but also esters, organic acids, phenols and other compounds, which have some benefits for human health.

In this context where people are frantically buying disinfectants, many people have said that it is difficult to find a bottle and are worried that there are no suitable disinfection products at home.

Even as disinfectants are in short supply, some people choose to spray their homes with liquor to disinfect.

So, can daily 42-degree wine really replace alcohol for antivirus?

First of all, compared to the alcohol used for disinfection, the alcohol content of 42-degree alcohol is relatively low. Even liquor with a higher than 60-degree alcohol content is often In addition to alcohol and water, it is also mixed with ingredients such as lipids, polyols, and enzymes, and these ingredients may have a role in destroying or promoting bacteria and viruses. Therefore, it is usually not recommended to use liquor as a substitute for disinfection.

At the same time, it is very undesirable for many people to fight against the new coronavirus by drinking a lot of liquor. This approach is not only absurd, but drinking a lot of alcohol can easily cause harm to the body.

First of all, when using alcohol to kill germs, you must pay attention to the concentration. When many people see that 75% alcohol can inactivate viruses, they think that since 75% alcohol can kill viruses, the higher the concentration of the ratio, the higher the antivirus effect, so they choose a higher concentration of alcohol on their own.

This approach is obviously wrong. In fact, the higher the concentration of alcohol, the better, because when the concentration of alcohol is too high, it will cause bacteria to form a protective film on the surface, making it difficult for alcohol to enter the body. , completely killing these viruses and bacteria.

Therefore, it is recommended that everyone follow the advice of experts when choosing alcohol disinfection and purchase 75% alcohol with the best concentration to effectively eliminate the new coronavirus.

In addition, because alcohol is a flammable and explosive substance, we must be extra careful when using 75% alcohol for disinfection at home, because as long as there is a small spark in the air, it can often cause a fire.

As for the second type of "84 disinfectant" commonly used by people, the higher the concentration, the better. Too high a concentration will not only fail to achieve a good disinfection effect, It will also cause environmental pollution. Therefore, when people use this disinfectant, they need to dilute it to a certain effective concentration according to the instructions and then perform sterilization.

In addition, 84 disinfectant must not be mixed with acidic disinfection products such as toilet cleaner, because according to experiments, the two products will produce chlorine gas when mixed at the same time, causing poisoning of users.

During the outbreak of the epidemic, masks, 84 disinfectant, and alcohol became hot-selling commodities in Chengdu. They were all sold out in an instant. They are no longer available in pharmacies and supermarkets. Ventilation can be implemented in every household, but masks cannot be purchased. I can’t go out anymore, so I can’t make my own 84 disinfectant because it contains sodium hypochlorite. What should I do with alcohol? Can I use the liquor I drink at home instead of disinfecting? That’s the problem. Can 42-degree, 50-degree, or even 60-degree liquor be used to disinfect? Disinfect the floor? Or if you can’t buy 75% alcohol, is it possible to use 40, 50% alcohol, or even higher 90% alcohol? Will the higher the concentration, the better the antivirus effect? It is understandable that we want to disinfect, but this method cannot solve the problem. We can only use medical 75% alcohol to disinfect. Why? The reasons are as follows:

1. Alcohol with a volume fraction of 75: It can smoothly penetrate into the bacterial body, absorb the water of bacterial proteins, and cause them to dehydrate, denature, solidify and lose their function, so as to achieve the purpose of disinfection and sterilization.

2. Alcohol with a concentration higher than the volume fraction of 75: When in contact with bacteria, the surface of the bacteria may solidify rapidly, forming a thin film, which prevents alcohol from continuing to penetrate into the interior of the bacteria. At the right time, the cells within the film may break through the film and resurrect. At an alcohol concentration higher than 75, the effect of alcohol in rapidly coagulating bacterial surface proteins tends to increase as its concentration increases, so its disinfection and sterilization effect becomes worse.

3. If the volume fraction of alcohol is less than 75, it will not be able to completely kill the bacteria because it cannot penetrate into the bacteria smoothly.

Therefore, only alcohol with a volume fraction of 75 can coagulate the proteins that make up the bacteria without forming a thin film. In this way, the alcohol can continue to penetrate into the interior, thereby achieving a better disinfection effect. Therefore, it is not recommended that you use the liquor you drink to mop the floor. It is wasteful and has no sterilizing effect.

During the epidemic, is it okay to use 42% alcohol to mop the floor in the house? Of course you like to use wine to mop the floor, it’s not impossible, of course It works, because you said it does. Don’t talk about 42-proof wine. All the wines in the house will work. It’s better to use famous wines. During the epidemic, it is best not to go anywhere, stay at home, and mopping the floor with wine every day is a wise choice. Not only is it hygienic, but the floor in the house can satisfy your alcohol addiction, and you can smell the aroma of fine wine every day. It can be said that it kills two birds with one stone. If you have more money, you can do whatever you want. Wine and mopping the floor are a pioneering work of you rich people, but you can also just spend more money. For the poor, just use 75% medical alcohol to detoxify. Wine is for drinking, and poor people will not mop the floor with wine.

The answer is: "No." If you use wine to mop the floor, it won't have much effect.

In fact, experts have made it very clear that what can kill the new coronavirus is a 75-concentration medical alcohol solution.

75% medical alcohol is made from a strict ratio and contains only water and ethanol. Ethanol with a concentration of 75% has a strong penetrating power and can penetrate the surface of bacteria or viruses, enter the interior, and coagulate proteins, causing the bacteria or viruses to lose their activity, thus playing a disinfecting role. It can be called a "disease killer".

The National Health Commission reminds: If you want to disinfect your home during the epidemic, you can use alcohol (75% concentration) or 84% disinfectant. 84 disinfectant is an indispensable common disinfectant in our lives.

The liquor people drink is distilled liquor, which is made from grains as the main raw material, and is made up of starch or sugar raw materials or fermented and distilled.

The alcohol content is usually expressed in terms of volume ratio at 20°C. For example, 53-degree liquor contains 53 ml of ethanol in 100 ml of alcohol. Liquor has a relatively complex component, usually containing polyols, higher alcohols, esters, organic acids, phenols, etc. These substances have a complex effect and can kill some bacteria while also promoting the growth of other bacteria.

Therefore, the direct use of liquor, whether it is Moutai with 53 degrees or more strong vodka with 70 degrees or more, cannot replace medical disinfectant alcohol.

How to use alcohol correctly

Alcohol is a flammable and explosive substance. Nowadays, people store and use it in large quantities. We must pay attention to the fire hazard caused by alcohol.

Hazardous Characteristics of Alcohol

Alcohol, scientific name is ethanol, is a flammable, volatile, colorless and transparent liquid at room temperature and pressure, with a flash point of 13°C and a light blue flame. color. Its vapor is heavier than air and can spread from lower places to farther places, forming an explosive mixture with air. It can cause explosive combustion when exposed to open flames or high heat.

Precautions for alcohol

1. Pay attention to indoor ventilation

When using alcohol indoors, you need to ensure indoor ventilation. Used towels and other cloth cleaning tools should be After use, wash it with plenty of water and store it in a sealed place, or place it in a ventilated place to dry.

2. Use alcohol safely

Clean up the surrounding flammable and combustible materials before use, and do not spray it directly in the air. Alcohol has a low ignition point and is prone to spontaneous combustion when exposed to fire or heat. Do not approach heat sources or open flames when using it. To disinfect the surface of electrical appliances, turn off the power first and wait for the appliance to cool down before proceeding. If you use alcohol to wipe the kitchen stove, turn it off first. source of fire to prevent alcohol from evaporating and causing deflagration. During use, the upper lid of the container must be closed immediately after each use, and it is strictly prohibited to leave it open.

3. It is not advisable to hoard large amounts of alcohol at home

Alcohol is a flammable and volatile liquid. When residents use alcohol to disinfect their homes, they can purchase small bottles of alcohol to ensure sufficient use. , do not hoard large amounts of alcohol to avoid leaving fire safety hazards.

4. Store away from light to prevent damage due to dumping

Containers for collecting, temporarily storing, and using alcohol must have reliable seals, and it is strictly prohibited to use containers without lids.

Avoid storing in glass bottles to prevent falling and damage. Do not place the remaining alcohol at home in heat source environments such as balconies or stoves, nor near power sockets, walls, table corners, etc. to prevent accidental knocking and tipping. It can be stored in a cool place such as a cabinet away from light. When storing, the lid should be tightly closed and labeled to avoid evaporation.

5. Keep out of the reach of children when storing

For families with young children, alcohol should be kept out of the reach of children. For older children, parents can explain to their children Regarding the properties of alcohol, educate children not to play with alcohol, let alone ignite it with fire.

Here

First of all, medicinal disinfectant alcohol is a strictly proportioned 75-concentration alcohol solution. It is a plant raw material product. It is made of starchy plants that are saccharified and then fermented. It is made by distillation, which is equivalent to the process of making wine.

However, the distillation temperature of alcohol is lower than that of wine, the number of distillations is more than that of wine, the alcohol content is high, and the output of finished products is high. The main body is ethanol, and there are more ether and aldehyde components than wine, so it cannot be drunk.

Alcohol with a concentration above 75% will cause the protein on the surface of the bacteria to coagulate, preventing the alcohol from entering the bacteria, which is counterproductive!

Alcohol with a too low concentration cannot coagulate even if it can enter the bacteria, so it has no disinfection effect.

After talking about the basic knowledge of medical alcohol, let’s talk about what is in liquor?

The ingredients of liquor are very complex. In addition to water, there are also alcohols, aldehydes, esters, phenols, acids, sugars, etc. Why is liquor spicy? Because of acetaldehyde. It is very unsafe and unscientific to use alcohol instead of alcohol to kill viruses.

Therefore, liquor has no bactericidal effect at all.

But if you have money, you can mop the floor with liquor to remove the scale.

Because the ethanol in liquor has a hydrophilic group (hydroxyl group) and a lipophilic group (hydrocarbon group), its lipophilic group is inserted into the grease, so that the grease will be wrapped by the ethanol molecules, and the affinity of the ethanol molecules will The water base can be combined with water, so that ethanol and grease are brought together. The mop can easily remove dirt on the floor, and of course medical alcohol is the same!

If you are mopping the floor for the purpose of disinfection at home, it is recommended to use Dettol disinfectant and Velox disinfectant. They use p-chlorometa-xylenol, which can not only be used for skin disinfection before surgery; it is also used for medical purposes. The sterilization of equipment is also very suitable for home use.

As for 84, it is not recommended to use it at home, because the 84 disinfectant is mainly sodium hypochlorite, which contains chlorine and has a strong corrosive effect and will burn the respiratory mucosa.

Moreover, even high-concentration alcohol can only be used to disinfect the surface of objects. The surface of the skin is okay. If used in the subcutaneous soft tissue, the cells will be necrotic, which is absolutely not allowed!

In addition, the alcohol concentration that can truly sterilize and kill viruses is required to be around 75~80. Only at this concentration can alcohol have the best antiseptic effect.

You can understand the coronavirus as an egg without a shell. The yolk and egg white are wrapped by a membrane. The yolk and egg white are the RNA structure of the virus. It is causing harm to the world, and the outside This layer of envelope is made of protein and protects the structure inside;

75 alcohol disinfectant can best penetrate into the virus and kill it! If the concentration is too high and exceeds 90, it may quickly solidify the protein structure on the surface of the virus, which will instead protect the internal structure. Just like a complete egg, it will not be able to kill the virus!

Low-concentration alcohol products like liquor cannot achieve the same effect as medical disinfectant alcohol and cannot kill viruses.

As far as I know, there are indeed some brands of liquor that can reach the concentration of 75 degrees, but it may be rare to see it on the market!

Under normal circumstances, the alcohol concentration when we drink alcohol is generally around 40°~50°. Drinking alcohol with more than 60 degrees will already burn the esophagus and stomach, so drinking alcohol with 75 degrees is equivalent to Holding his stomach for dear life.

Although alcohol entering through the digestive tract will be absorbed into the blood in about 5 minutes, a large amount of alcohol is metabolized through the liver. No matter how much alcohol you drink, it will not be absorbed into the blood. The alcohol concentration reaches 75%, which can kill viruses. If it could really reach this concentration, people would be gone.

84 is a disinfectant that is more convenient to use. As long as it is used scientifically, it can completely kill viruses. However, when using 84 for disinfection, you must pay attention to the following details:

●84 disinfectant is corrosive, so you must wear rubber gloves when using it, and try to reduce splashing when mixing, which may damage the mucous membranes of our eyes.

● 84 disinfectant is a chlorine-containing disinfectant. Never mix it with other detergents or disinfectants, because a chemical reaction may occur to form chlorine gas, causing chlorine poisoning.

●Do not use disinfectant on clothes or ironware as it may cause damage and corrosion. If it must be used, be sure to add more water to reduce the concentration.

●After 30 minutes of indoor disinfection with 84 solution, you must open the windows for ventilation.

● In addition, families with children must pay attention to 84 disinfection, keep it out of the reach of children, and put the 84 solution in ordinary mineral water bottles. Dr. I diagnosed a patient with esophageal burns. During the SARS epidemic, she put 84 disinfectant in a mineral water bottle and forgot to drink it while she was busy. As a result, she suffered severe esophageal burns and had to undergo surgery in the stomach. Fistula can solve the problem of eating.

Remember!

We all disinfect our homes and maintain personal hygiene. This is a very good behavior. This is a responsible performance for everyone and society, but please be sure to pay attention to the methods and methods. .

During this extraordinary period, please be careful not to go to crowded places and try not to gather. Pay attention to personal hygiene, wash hands frequently, wear masks, pay attention to your diet and rest, and don’t stay up late. Enhance your own resistance.

Please firmly believe that under the leadership of our country and the party, with the cooperation of all walks of life and all walks of life, and with the efforts of medical staff, we will surely win this battle against the new virus pneumonia. .

First of all, this is not possible. First, it has no disinfection effect and is meaningless. Second, it is not necessary for ordinary families.

1. Insufficient concentration is a flaw

The new coronavirus is sensitive to a variety of disinfectants. There is no problem with this. Among them, 75% alcohol is one of the reliable disinfectants. This concentration Alcohol can easily enter the cell membrane of microorganisms, destroy the internal structure of the cell, and kill pathogens. The minimum concentration should not be less than 70. Alcohol with a concentration lower than this will greatly reduce the antivirus effect and may not even have a disinfection effect. As for Because the concentration of 42-percent alcohol is too low, there is no point in using it to mop the floor.

2. In ordinary households, disinfection is of little practical significance

Viruses are different from bacteria. They can only parasitize in the cells of organisms, escape from the body and enter the environment, and their survival time is limited. For families in epidemic areas, appropriate indoor disinfection (chlorine-containing disinfectants, 75% alcohol, etc.) can be considered. For ordinary families, disinfection is of less significance and is far less meaningful than opening windows for ventilation. For individuals, pay attention to washing hands frequently. , especially after touching public facilities, you should wash your hands with running water and soapy water.

It is currently emphasized that public facilities such as elevator buttons, bus handrails, door handles, etc. should be disinfected. This does not mean that the virus will survive on the surface of such facilities, but that these facilities should be disinfected when people touch them. The frequency is high. If an asymptomatic "virus carrier" leaves the virus in these areas through the respiratory tract or other channels, it is very likely that he will be exposed to other people.

It is important to have a good awareness of prevention and control, but disinfection measures such as mopping the floor with liquor are meaningless.

I think: A person’s mentality is very important at any time! Be bold and careful...don't panic when things happen! Dealing with everything calmly is the real positive energy! I don’t go out and run around... I don’t contact others casually... My family is healthy, so there is no need to create tension