Product name: Ethylenediaminetetraacetic acid
Synonym: EDTA
CAS NO.: 60-00-4
Appearance: White crystalline powder
Purity: ≥99%
Email: Tracy@coreychem.com
Chemical Properties:
This product crystallizes from water as a white powder. Its solubility in water at 25°C is 0.5 g/L. It is insoluble in cold water, alcohol, and common organic solvents. It is soluble in sodium hydroxide, sodium carbonate, and ammonia solutions.
Applications:
1. Ethylenediaminetetraacetic acid (EDTA) is an important chelating agent. EDTA has a wide range of uses, including as a bleaching and fixing agent in the processing of color photographic materials, a dyeing auxiliary, a fiber processing aid, a cosmetic additive, a blood anticoagulant, a detergent, a stabilizer, and a synthetic rubber polymerization initiator. EDTA is a representative chelating agent. It can form stable, water-soluble complexes with alkali metals, rare earth elements, and transition metals. In addition to sodium salts, it also exists as ammonium salts and various salts of iron, magnesium, calcium, copper, manganese, zinc, cobalt, and aluminum, each with its own unique applications. EDTA can also be used to rapidly excrete harmful radioactive metals from the human body, acting as a detoxifying agent. It is also a water treatment agent. EDTA is also an important indicator, but it is used for titrating metals such as nickel and copper. It must be used with ammonia to function as an indicator.
2. Ethylenediaminetetraacetic acid is an excellent chelating agent for calcium and magnesium ions. It is used as a chelating agent in water used in emulsion polymerization to remove metal ions such as Ca2+, Mg2+, Fe2+, and Fe3+. It is also used as a complexing agent in anaerobic adhesives. Treating diester methacrylate with EDTA removes transition metal ions and eliminates the effects that promote peroxide decomposition, effectively improving the stability of anaerobic adhesives. EDTA sodium salt chelates metal ions and improves the stability of modified acrylic acid. The storage stability of solid structural adhesives (SGA) is improved at a dosage of 3×10⁻⁴ to 6.0×10⁻⁴. At a dosage of 1.5%, storage stability at 50°C reaches over 360 hours (storage at 50°C for 4 days is equivalent to 1 year of SGA storage at 20°C).
3. It is often used to soften boiler water and prevent scaling.
