How to make disinfectant water at home, and how to disinfect it at home

Cl2 is produced by electrolysis of table saline

Production principle: After the electrolysis of salt water, hydrogen, chlorine and sodium hydroxide are produced, and sodium chloride and sodium hypochlorite are further reacted to produce disinfection, bleaching and other functions. Namely:

Electrolysis. 2nacl+2h2o → cl2↑+h2↑ +2naoh

cl2 +2naoh → nacl +naclo +h2o

Materials: a Coke bottle, a transformer, two electrodes (can be replaced by a pencil lead or a battery cell), a number of wires, a number of electrical tape. (If you want to commercialize, you can choose safer and more beautiful materials).

Production method: fix the carbon rod in the cola bottle, connect one end of the carbon rod to the wire and then connect it to the transformer, as long as it is not short-circuited, it can be uninterrupted.

How to use: Put salt water in the cola bottle, plug it in, and turn on the electrolysis.

To confirm the validity of this experiment, bleached blue ink was used to test its decontamination effect. (Hypochlorous acid and sodium hypochlorite are oxidative decontamination, so they can be verified by this method.) ）

We used 100 grams of sodium chloride solution of different concentrations, and Hero brand blue and black ink to test, and the effect is shown in the table. As can be seen from the table below, this sterilizer has a good effect and can be fully applied to household disinfection.

Disinfectant water preparation conditions selection table.

Table salt solution (concentration).

Electrolysis time (minutes).

Ink consumption (drops).

Electrolysis with 5% 10% salt water for 10 to 15 minutes can meet the general household disinfection, if you want to use a large dose, you can choose 15% 20% salt water or electrolysis time is a little longer.

Scope of application: disinfection of fruits, drinking water, tableware, bleaching of clothes and shoes, stubborn stains in places, and can also be used for scrubbing furniture, doors and windows and many other places that need to be decontaminated and bleached.

Precautions: 1 Do not go near an open flame during electrolysis.

2. When used for food disinfection, it should be rinsed, and drinking water should be boiled before drinking.

Potassium permanganate, available in pharmacies. One gram with 1000 ml of water.

You don't need to spend money to buy disinfectant water, teach you to make it at home, it is simple to operate, low cost, and you can see it at a glance.

1. Surfaces such as floors, desktops, furniture, etc.: Prepare a chlorine-containing (bromine) disinfectant with a concentration of 250mg L to wipe, and the disinfection time should not be less than 15 minutes, and then wipe with water to remove the residual disinfectant. Households with conditions can also use disposable sanitary wipes with disinfectant effect to wipe.

2. Towels, clothes and other fabrics: can be disinfected by exposure to the sun for 4-6 hours, or can be disinfected by circulating steam or boiling for 15 minutes.

3. Water cups, tableware and other utensils: after washing, boil or circulate steam for 15 minutes; Or use a sterilized cupboard to disinfect according to the instructions.

4. Sanitary ware: After disinfection, sanitary ware can be soaked in a chlorine-containing disinfectant with an effective chlorine content of 500mg L for 30 minutes and then cleaned and dried.

Precautions

1. When using the disinfectant, it is necessary to operate in strict accordance with the concentration specified in the instructions, and wear protective gloves to prevent eye swelling, eyelash edema and even more serious poisoning.

2. As long as a disinfectant is selected according to the instructions, it must not be mixed, otherwise chlorine poisoning is very likely to occur.

3. For people who are allergic to disinfectant, people should leave the room during disinfection, and ventilate the room after 40 minutes to an hour. For the disinfection time interval, experts believe that it is sufficient to operate according to the instructions of the disinfectant.

Taking the common 84 disinfectant as an example, many people use it to disinfect underwear, wipe the machine, tables and chairs, doors and windows, etc., but ignore an important problem - it is never diluted before use, and it is a small half bottle when used.

In fact, the bleaching effect and corrosiveness of 84 disinfectant are strong, and the concentration should be low when used, and the soaking time should not be too long. Moreover, household disinfection does not require such a high concentration. Generally speaking, when used to wipe the surface of general objects, the dilution concentration is 2 5, that is, 2 5 ml of 84 disinfectant solution can be put in 1000 ml of water.

The following three points should also be paid attention to when using 84 disinfectant:

1. It is best to wear gloves and avoid direct contact with disinfectant;

The disinfectant is a chlorine-containing disinfectant, which is volatile, and the container containing the disinfectant must be capped, otherwise the disinfection effect will be affected;

The disinfectant should not be mixed with other detergents, otherwise it will increase the concentration of chlorine in the air, which can cause chlorine poisoning. If the home is disinfected in a large area, people should not stay in the room, and it is best to close the door and go out for half an hour.

At present, the traditional disinfectant water is nothing more than the common 84 disinfectant water, hydrogen peroxide, homemade salt water, etc., its safety and disinfection ability are different, the use of objects and environments are also different, for example, if it is a full range of disinfection at home, 84 disinfectant water is not suitable, 84 is more corrosive, the smell is larger, it will cause damage to the human respiratory tract, and has strong carcinogenicity. Now there is a new type of disinfection water bacteria dissolved water on the market, using weakly acidic hypochlorous acid water as the original solution, the sterilization strength is above, and the pH value is fluctuating up and down, there is no harm to the human body, it can be added to the humidifier to dispense out to disinfect the room, especially suitable for families with children and the elderly, that is, ** is higher than 84 and so on.

I usually use Dettol disinfectant, dilute it with water, soak the clothes for 5 minutes, and then scrub the floor furniture. Sinks, toilets, and drains are soaked in the original solution.

It is recommended that you use CELA non-electrolytic slightly acidic hypochlorous acid water technology to learn about it.

The disinfectant you buy should be diluted before use, not too strong, too strong is not good for the respiratory tract.

Use 84 liquid dilute release liquid, wipe all with a towel two or three times!

Methods of disinfection at home.

1. Ground disinfection can be done when mopping the floor, you can add a bottle of old housekeeper disinfectant.

2. It is enough to choose physical disinfection, such as exposure to the sun, steaming, etc. Dishes can be sterilized by boiling with water, or sterilized by sterilizing cabinets. Clothes and quilts can be disinfected in the sun.

3. Frequently touched objects such as doorknobs and faucets can be disinfected with the old housekeeper's disinfectant.

4. The pet's kennel should be disinfected regularly.

During this time, because of the spread of the new coronavirus, the situation was very serious, and the disinfectant in many supermarkets was swept away. If you can't buy disinfectant on the market, you can make your own disinfectant at home, which can also achieve the purpose of cleaning. So how to make your own disinfectant at home?

What are some easy ways to do this? If you are short of disinfectant water at home, you may wish to take a look at the introduction.

1. How to make simple household disinfectant water.

1. Many people have soap, as well as white vinegar, and alcohol is also readily available, so you only need to find another watering can. Watering cans are available in supermarkets**, it is best to choose a watering can with a scale, so that you can have a good grasp of the ratio of water and soap.

2. Next, pour in soapy water, then pour in two caps of white vinegar, and pour two caps of alcohol, shake it up and down, and make a relatively simple bottle of disinfectant.

3. This bottle of disinfectant water has liquid soap, which can achieve the purpose of cleaning, and at the same time there is white vinegar, which has the effect of removing scale and disinfection. For alcohol, everyone is very familiar with it, its sterilization effect is still very good, and the combination of these ingredients is also relatively safe, you can directly use it to spray dirt, or use it to clean the table, disinfect, etc., it is very simple to use.

2. How to make your own disinfectant with 84 disinfectant.

1. You need to prepare a bottle of mineral water, as well as a basin and 84 disinfectant. In order to protect your hands, you should also prepare a rubber glove, and after personal protection, pour two caps of 84 disinfectant. A bottle cap is about 7 ml, so two bottle caps can reach 14 ml, add 600 ml of mineral water to the water cheating basin, stir well, then each ml contains 300 500 ml of disinfectant, this 84 disinfectant can be used to wipe the floor, table top and stove.

2. However, after all, disinfectant water has a certain corrosiveness, so after wiping, it is necessary to wipe it with clean water and local hail again.

3. In addition, it should be noted that if you use this kind of prepared disinfectant, do not use other disinfection products, such as alcohol or toilet cleaner, which cannot be mixed.

Summary: When the disinfectant cannot be purchased in the supermarket, we can DIY a household disinfectant at home, as long as it is configured according to the instructions for use, it can ensure that the purpose of disinfection is achieved.

1. Make salt water

The first step in making your own disinfectant is to make your own salt water. Specifically, you can pour about two-thirds of tap water into the water cup and add an appropriate amount of salt, stirring as you add until the salt is no longer dissolved. After the brine is ready, it can be set aside.

2. Assemble the power supply and set it up for banquet calling

The next step is to assemble the power supply unit. The method is also relatively simple, you need to prepare items such as batteries and pencil leads, and use electronic wires to connect the pencil lead and battery box together, and a small switch can be added in the middle. Once connected, load the battery in the battery compartment and make sure the power is off.

3. Insert the pencil lead into the solution

Insert the pencil lead into the salt water and secure it to the inside of the cup with a plastic clip. This ensures that the power supply is connected, allowing the brine to react chemically through electrolysis. If you have a carbon rod, the effect will be even more significant.

4. Energized hydrolysis

At this time, you can turn on the switch, and closely observe the changes in the solution in the water cup, and disconnect the switch after it turns yellow-green. If you want to disinfect the water with a higher concentration, you can increase the electrolysis time appropriately. In addition, you can also use the way of smelling the smell to determine whether the production of the dust is completed, if you smell the unpleasant gas emitted from the water cup, you can basically judge the success of the disinfectant production.

1. Production principle: Hydrogen, chlorine and sodium hydroxide are produced after the electrolysis of salt water, and sodium chloride and sodium hypochlorophoate are further reacted to produce sodium chloride and sodium hypochlorophonoate, which have the functions of disinfection and bleaching.

2. The production materials are well-known: a cola bottle, a transformer, two electrodes (can be replaced by pencil leads or battery cells), a number of wires, and a number of electrical tapes.

3. Production method: fix the carbon rod in the cola bottle, and connect one end of the carbon rod to the wire and then connect it to the transformer section, so as to ensure that there is no short circuit and no continuous circuit.

4. How to use: Put salt water in the cola bottle, plug it in, and turn on electrolysis.