the chemical formula of hydrogen peroxide is H2O2. Pure hydrogen peroxide is a light blue viscous liquid, which can be mixed with water in any proportion. It is a strong oxidant. The aqueous solution is commonly known as hydrogen peroxide and is a colorless and transparent liquid. Its aqueous solution is suitable for medical wound disinfection, environmental disinfection and food disinfection. Under normal circumstances, it will decompose into water and oxygen, but the decomposition speed is extremely slow. The way to speed up its reaction is to add catalyst-manganese dioxide or irradiate it with short-wave rays.
1. Uses
Hydrogen peroxide can be used for medical, military and industrial purposes. Medical hydrogen peroxide is used for daily disinfection, which can kill intestinal pathogenic bacteria, pyogenic cocci and pathogenic yeasts, and is generally used for surface disinfection of objects. Hydrogen peroxide has oxidation effect, but the concentration of medical hydrogen peroxide is equal to or lower than 3%. When it is rubbed on the wound surface, it will feel burning, and the surface will be oxidized to white and bubble. Just wash it with clean water, and the original skin color will be restored after 3-5 minutes.
Chemical industry is used as raw materials for producing sodium perborate, sodium percarbonate, peracetic acid, sodium chlorite, thiourea peroxide, etc., and as oxidant for tartaric acid and vitamins. The pharmaceutical industry is used as bactericide, disinfectant and oxidant for producing thiram insecticide and 4l antibacterial agent. Printing and dyeing industry is used as a bleaching agent for cotton fabrics to reduce the color of dyed dyes. Used to remove iron and other heavy metals when producing metal salts or other compounds. It is also used in electroplating solution, which can remove inorganic impurities and improve the quality of plated parts. It is also used for bleaching wool, raw silk, ivory, pulp and fat. High concentration of hydrogen peroxide can be used as rocket power combustion improver.
civil use: to deal with the odor in the kitchen sewer, buy hydrogen peroxide from the drugstore, add water and washing powder and pour it into the sewer to decontaminate, disinfect and sterilize;
3% hydrogen peroxide (medical grade) can be used for wound disinfection.
2. Precautions
1. Do not take orally, and keep it out of reach of children.
2, corrosive to metals, use with caution.
3. Avoid mixing with alkaline and oxidizing substances.
4. Keep away from light and heat and store at room temperature.
5. The validity period of medical use is generally 2 months. [5]
6. Do not touch with your hands.
III. Health hazards
Invasion routes: skin contact, inhalation and ingestion.
health hazard: high concentration of hydrogen peroxide is highly corrosive. Inhalation of vapor or fog of this product has strong irritation to respiratory tract. Direct contact with liquid can cause irreversible damage and even blindness. Abdominal pain, chest pain, dyspnea, vomiting, temporary movement and sensory disturbance, and elevated body temperature occur in oral poisoning. Individual cases have visual impairment, epilepsy-like spasm and paraplegia.