Application of sodium percarbonate in aquaculture_industrial additives

Sodium percarbonate, commonly known as solid hydrogen peroxide, is an addition compound of hydrogen peroxide and sodium carbonate. It decomposes to produce oxygen, water and sodium carbonate. Its effective active oxygen content is equivalent to 27.5% hydrogen peroxide. Sodium percarbonate not only has the function of liquid hydrogen peroxide, it quickly decomposes at lower water temperatures to release oxygen to achieve functions such as bleaching, decontamination, sterilization, and odor removal. It also decomposes at the same time to generate sodium carbonate, which can increase the pH value of the water and reduce the The ability of calcium and magnesium ions in hard water softens the water. In addition, as the pH value increases, dirt and fibers carry more negative charges, thereby increasing the repulsion between dirt and fibers and improving bleaching and washing effects. The decomposition products of sodium percarbonate: oxygen, water and sodium carbonate are naturally occurring substances and have no negative impact on the environment. Therefore, sodium percarbonate is a very environmentally friendly, high-performance, low-temperature oxygen-based bleach.

Applications of sodium percarbonate in aquacultureApplications in aquaculture

Sodium percarbonate is commonly known as solid hydrogen peroxide. As a classic chemical product, industrial production began more than a hundred years ago. With the growth of social needs, especially the need for ecological environmental protection, hydrogen peroxide has become more popular in recent years and is known as the “green oxidant”. Sodium percarbonate is widely used in various industrial and civilian products, such as laundry detergent, bleaching powder, wood floor cleaners, carpet cleaners and other household and personal care product formulations. Sodium percarbonate can be made into various disinfectants and oxygen supplies for fish pond water oxygen supply, industrial wastewater treatment, medical disinfection/first aid, etc. In addition, sodium percarbonate can also be used for food bleaching, pulp bleaching and textile printing and dyeing.

Detergent additives: While sodium percarbonate is used for washing and decontamination, tetrahydrofuran also has the functions of bleaching, sterilizing, and disinfecting. It has become the development trend of detergents. Many foreign detergents are added with bleaching components. The country is also gradually developing in this direction. Since sodium percarbonate is odorless and non-toxic, it is easy to dissolve in cold water and has strong detergency. When dissolved in water, it can release oxygen and play a variety of functions such as bleaching and sterilization, which is in line with the development trend of modern detergents. Sodium percarbonate is increasingly used in detergent production. Currently, sodium percarbonate has been widely used as household and industrial detergents, bleaching agents, and bactericides in the production of synthetic fibers, animal fibers, synthetic resin fibers, pulp grease, etc. It has good bleaching effect, does not damage the fabric and does not turn yellow.

For example, in Japanese heavy-duty bleaching detergents, the added amount of sodium percarbonate is 10%; in foreign countries, the commonly used ordinary enzyme-added bleaching laundry detergents are added in an amount of 8%; in Japan’s new stain removal detergent, the added amount is 20% ; China uses dust-proof bleaching laundry detergent, with an added amount of 8%. Since the 1980s, the market demand for detergents in Western industrialized countries has grown at an average annual rate of 10%. In China, the use of sodium percarbonate in detergent production is currently in its infancy, and some manufacturers have begun to combine sodium percarbonate with other effective detergent auxiliaries. In the face of fierce market competition, it is hoped that sodium percarbonate will be added to improve the performance of washing powder, especially the production of low-phosphorus or phosphorus-free washing powder. By adding sodium percarbonate, the product can be made high-end, non-toxic and multi-functional. direction development.

Medical and health care: Mix sodium percarbonate with a solid containing polyvinyl acid and any compound catalyst such as Cu, Fe, Co, Mn, etc. When using oxygen for first aid, add an appropriate amount of water to decompose oxygen. Simple and convenient, with large oxygen supply. This oxygen source is suitable for families (especially rural families), the military, underground construction and mining, flood fighting, fire fighting and disaster relief and other emergency situations. It is an excellent first aid oxygen supply agent. According to conservative estimates, the sodium percarbonate used as a medical oxygen supply source in the Beijing-Tianjin region alone requires about tons/year, and part of the exported sodium percarbonate is also used in this area. Sodium percarbonate is also a bactericidal disinfectant that can kill common germs such as Escherichia coli, Staphylococcus aureus, and hepatitis virus. It can be used as a sterilizing disinfectant, denture cleaner, tableware and fruit disinfectant, soap disinfectant, etc. in hospitals and public places.

Others: Sodium percarbonate can be used for food preservation and disinfection. 1% sodium percarbonate aqueous solution can prevent fruits and vegetables from deteriorating for 4-5 months. It has been widely used in the food industry in the West. China has also formulated industry standards for the food additive sodium percarbonate based on the standards of the United Nations Food and Agriculture Organization to better guide companies to use sodium percarbonate and promote its consumption in the food industry. . In addition, sodium percarbonate can replace basic copper carbonate and calcium peroxide as an oxygen generator in the aquaculture industry. The oxygen release rate is significantly higher than calcium peroxide, and it can provide oxygen to fish, shrimp, crabs and other organisms during storage and transportation. Oxygen supply and preservation.

With the continuous development of my country’s aquaculture industry, the dosage of sodium percarbonate in this area will show an upward trend year by year. Sodium percarbonate can be used as a finishing agent for textiles, printing and dyeing. Unlike chlorine bleaching, which has the disadvantage of easy fading, it is suitable for rinsing and finishing synthetic fibers, animal fibers, synthetic resin fibers and fibers treated with fluorescent whitening agents that are not suitable for chlorine bleaching. Sodium percarbonate can be used as an oxidant in reactions such as the conversion of aldehyde groups into phenolic hydroxyl groups, organoborane oxidation, nitrile hydrolysis, thioether and amine oxidation, olefin epoxidation, ketone oxidation, a-diketone cleavage oxidation and other reactions. In addition, sodium percarbonate can also be used as a metal surface treatment agent.��Electroplating detergents, sewage treatment agents and polymer polymerization control agents, etc.