EDTA is a white powder at normal temperature and pressure, soluble in sodium hydroxide, sodium carbonate, and ammonia solutions, soluble in boiling water, slightly soluble in cold water, and insoluble in alcohol and general organic solvents. To better use it, let's follow the potassium hydroxide manufacturer to fully understand the characteristics and product uses of EDTA.
Characteristics of EDTA
It is an important complexing agent. EDTA is widely used as a bleaching and fixing solution for the processing of color sensitive materials, dyeing aids, fiber treatment aids, cosmetics additives, blood anticoagulants, detergents, stabilizers, and polymerization initiators for synthetic rubber.
It is a representative substance of chelating agents and can form stable water-soluble complexes with alkali metals, rare earth elements, and transition metals. In addition to sodium salts, there are also ammonium salts and various salts such as iron, magnesium, calcium, copper, manganese, zinc, cobalt, and aluminum, which have different uses.
It is an excellent chelating agent for calcium and magnesium ions. It is used as a chelating agent for water used in lotion polymerization to remove Ca2+, Mg2+, Fe2+, Fe3+and other metal ions. It is also used as a complexing agent for anaerobic adhesives, that is, using EDTA to treat diester methacrylate to remove transition metal ions and eliminate the effects that can promote peroxide decomposition, which has a very good effect on improving the stability of anaerobic adhesives.
Applications in water treatment:
With a wide range of coordination capabilities, it can form stable chelates with almost all metal ions, and its metal chelates have good solubility under slightly acidic conditions. Therefore, they have long been used as inhibitors of harmful metal ions and water softeners in the textile industry. Due to the excellent water solubility of its metal ion chelates, there is increasing research and application in the cleaning of water equipment.
Application in agriculture:
The metal salts such as Cu, Ca, Fe, Mg, Zn, etc. of the series of chelating agents have the advantages of good solubility and easy absorption, making them a good source of micronutrient fertilizers. Moreover, the mixing of these chelating metal salts does not affect their solubility, which is conducive to their use as multicomponent composite micronutrient fertilizers. In addition, EDTA has carboxylic groups that participate in the reaction and can generate potassium salts, ammonia salts, etc. While supplementing trace elements, it can also supplement potassium and nitrogen fertilizers. After comprehensive consideration of cost and effect, it will be the choice of chelated micronutrient fertilizer for a long time, so its application amount and scope in China are also increasing.
A series of chelating agents are also widely used in photography, textiles, printing and dyeing, papermaking, daily chemicals, chemical analysis, and other fields. In addition, attention should be paid to storing in a cool and ventilated warehouse, sealed and stored. During transportation, it should be protected from sunlight, rain, and high temperatures. For more relevant content, please visit our website http://www.jinhao360.com Ask about it.