Alcohol, cotton swabs, band-AIDS and bandages are all materials needed for basic medical care. The parties can buy in pharmacies with medical insurance cards, and there is no restriction in this respect.
The main component of medical alcohol is ethanol. In daily life, people often scrub wounds with medical alcohol to achieve the purpose of sterilization. It is worth noting that there are 75% and 95% concentrations of alcohol bought in pharmacies, and the uses of these two concentrations of alcohol are different. Use different concentrations of alcohol (the following concentrations refer to volume fraction).
Wipe the ultraviolet lamp with 95% alcohol. This kind of alcohol is commonly used in hospitals, but it is only used to clean camera lenses at home.
75% alcohol is used for disinfection. This is because excessive concentration of alcohol will form a protective film on the surface of bacteria, preventing it from entering the interior of bacteria, and it is difficult to completely kill bacteria. If the alcohol concentration is too low, it can enter bacteria, but it can't coagulate protein in the body and kill bacteria completely.
40%~50% alcohol can prevent bedsores. Patients who stay in bed for a long time, the back, waist and buttocks are compressed for a long time, which can cause bedsores. For example, pouring a little 40%~50% alcohol on their hands during massage can evenly massage the pressed parts of patients, promote local blood circulation and prevent the formation of bedsores.
25%~50% alcohol can be used for physical antipyretic. Patients with high fever can use it to wipe their bodies and achieve the purpose of cooling down. Because wiping the skin with alcohol can dilate the blood vessels of the patient's skin and increase the heat dissipation ability of the skin, its volatility can absorb and take away a lot of heat, thus alleviating symptoms. But the alcohol concentration should not be too high, otherwise it may irritate the skin and absorb a lot of water from the epidermis. Application in Maintenance When repairing various household appliances, instruments and electronic equipment, it is often necessary to do some cleaning and maintenance work, and medical disinfectant alcohol used in daily life is the best cleaning agent, which is characterized by strong decontamination and strong volatility. It can not only effectively remove all kinds of stains on the surface of electrical appliances, but also quickly clean the stains inside some electronic components without affecting the performance of electrical appliances. Here are some simple ways to clean electrical appliances and electronic components.
Suggestion: Do not disinfect with 75% alcohol for a long time, because long-term use of the same disinfectant may make bacteria resistant to it, thus reducing or even losing the sterilization effect and leading to unnecessary mistakes. The disinfection of the instrument can be used alternately with benzalkonium bromide and iodine, and can be used directly on human body.
Cleaning with alcohol has many advantages: 1, no hand injury; 2, little harm to human body (except methanol); 3, volatile, dry quickly; 4. No corrosion to electronic components and circuit boards. There are several problems in cleaning the circuit board with alcohol. Wash it when you put it down. In fact, some rosin blocks on the edge of solder joints are so big that they need to be soaked for a while, and then they will be washed off at once when they are soft. 2. There is no good cleaning tool. Some people like to use soft brushes. In fact, the soft brush is too soft, and some rosin blocks can't be brushed down. The best tool is an old toothbrush, which is a little hard, but it won't brush the circuit board and components. 3. Desire for success. Alcohol is not natural water, and its solubility is not as strong as natural water, so soak it first when cleaning and brush it carefully around the solder joints of the board. It won't take long. If the board is not cleaned and picked up, of course, the undissolved rosin will be left everywhere along the board, and it will definitely be a piece of white ash after drying.
Yes, according to your description, it is not medical disinfectant alcohol, but medical 75% alcohol!
Use an eraser. If it still doesn't work, it is recommended to go to social security to get a new medical insurance card.
Industrial alcohol has a small amount of methanol, which is harmful to human body, but medical alcohol does not.
Industrial alcohol is methanol, and medical alcohol is ethanol. The chemical composition is basically the same, but the molecular arrangement is different.
Industrial alcohol contains methanol, 96% of which can't disinfect human body; Medical alcohol contains 75% ethanol, which is suitable for disinfection of human body and animals.
Industrial alcohol can make people toxic, from blindness to life-threatening.
Medical alcohol is made by starch plants through saccharification, fermentation and distillation, which is equivalent to the process of making wine. However, the distillation temperature is lower than that of wine, the distillation times are more than that of wine, the alcohol content is higher, and the finished product yield is higher. Ethers and aldehydes other than alcohol are more than alcohol, so they can't be drunk, but they can be used for human medical treatment. It is the product of plant raw materials.
Industrial alcohol is the finished product in the process of petroleum refining or coal tar cracking. Although the main component is alcohol chemical component, it contains many components that may be toxic and carcinogenic to people, so it can't touch human skin and can't be used for medical treatment. Used as solvent or intermediate in industry. It is a mineral raw material product.