Ethylenediaminetetracetic Acid (EDTA)

White crystalline powder with chelating properties.

Ethylenediaminetetraacetic Acid (EDTA) is a white, crystalline powder. It has a melting point of approximately 250-255°C and is soluble in water. EDTA is odorless and has a slightly acidic taste. It is commonly used as a chelating agent due to its ability to bind metal ions, forming stable complexes.

Energy Sector

EDTA finds significant applications within the energy sector. One of its key uses is as a corrosion inhibitor. In power plants and pipelines, EDTA acts as a protective agent by forming stable complexes with metal ions, thus preventing corrosion and extending the lifespan of equipment and infrastructure. Additionally, EDTA plays a crucial role in scale and fouling control. By chelating with metal ions responsible for scale formation, it helps minimize the accumulation of deposits in boilers, heat exchangers, and cooling towers, leading to enhanced system efficiency. Moreover, EDTA is utilized for metal removal in certain energy production processes. In applications like nuclear power generation or the treatment of radioactive waste, EDTA forms complexes with radioactive and heavy metal contaminants, facilitating their extraction or precipitation for effective removal from aqueous solutions.

Water Treatment

EDTA is extensively used in water treatment, offering versatile benefits. It acts as a chelating agent, forming stable complexes with metal contaminants, preventing scaling and interference. Water softening is achieved by sequestering calcium and magnesium ions, enhancing cleaning efficiency. EDTA aids in removing toxic heavy metals through precipitation or ion exchange processes. It stabilizes redox conditions, vital for oxidation-reduction potential control in water treatment. Additionally, it chelates trace metals like copper and zinc, preventing accumulation and adverse effects. EDTA’s multifaceted role ensures improved water quality, reduced scaling, efficient metal removal, controlled redox conditions, and trace metal management in sustainable water treatment processes.

CAS No.: 60-00-4


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