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EDTA-2Na (Disodium Edetate) CAS 6381-92-6 powder

EDTA-2Na (Disodium Edetate) is a widely used chelating agent in industrial, food, pharmaceutical and cosmetic fields. Its common aliases include Disodium Ethylenediaminetetraacetate, Disodium EDTA, EDTA Disodium Salt, Ethylenediaminetetraacetic Acid Disodium Salt and Disodium Edetate Dihydrate. The CAS number is 6381-92-6. This product has completed REACH registration, and MSDS download is available to provide detailed safety and compliance information for global purchasers.

Product Properties and Physical Characteristics

EDTA-2Na is an inorganic chelating agent with stable physical and chemical properties. It appears as white crystalline powder, odorless and tasteless, with good water solubility-easily soluble in water, slightly soluble in ethanol, and insoluble in benzene, ether and other organic solvents. The pH value of its 5% aqueous solution is about 4.0-5.5, showing weak acidity. It has a molecular weight of 336.21, a density of 1.45 g/cm³, and a melting point of 250℃ (decomposition). EDTA-2Na is stable at room temperature, but may decompose under high temperature or strong acid conditions, and has strong chelating ability, which can form stable water-soluble complexes with most metal ions (such as Ca²⁺, Mg²⁺, Fe³⁺, Cu²⁺) in a 1:1 coordination ratio.

Common Product Specifications

Product Applications

EDTA-2Na is a versatile chelating agent with a wide range of applications due to its strong metal ion chelating ability. In the industrial field, it is used as a water softener in boiler water treatment and circulating water systems to chelate Ca²⁺ and Mg²⁺ ions to prevent scale formation; in textile printing and dyeing, it acts as a metal ion masking agent to avoid dye discoloration caused by metal ions and improve dyeing uniformity. It is also used in electroplating industry as a brightener and stabilizer to enhance the smoothness and adhesion of coatings.

In the food industry, EDTA-2Na is used as a stabilizer, antioxidant and color fixative, which can prevent food oxidation and discoloration, extend shelf life, and is widely applied in canned fruits, vegetables, fruit juices and meat products. In the pharmaceutical field, it is used as an anticoagulant in vacuum blood collection tubes to chelate Ca²⁺ ions and block blood coagulation, and also as a stabilizer in injections to improve drug stability. In the cosmetic and personal care field, it is added to shampoos, lotions and creams to chelate metal ions in water and raw materials, preventing product oxidation and deterioration.

FAQ

Q1: Is EDTA-2Na compliant with international food and cosmetic safety standards?

A1: Yes,EDTA-2Na complies with international standards such as EU EC 1223/2009 cosmetic regulations and US FDA 21CFR§172.135 food additive standards. It has completed REACH registration, and MSDS download is available to provide detailed safety data for compliance verification in different application scenarios.

Q2: What are the key points for the storage of EDTA-2Na powder?

A2: EDTA-2Na powder is easy to absorb moisture and agglomerate, so it should be stored in a cool, dry and well-ventilated warehouse with relative humidity below 75%. It should be sealed in airtight packaging to avoid contact with moisture and impurities, and stored separately from strong acids and oxidants to prevent chemical reactions.

Q3: Can EDTA-2Na be customized according to specific chelating value requirements?

A3: Yes, the chelating value and particle size of EDTA-2Na can be properly adjusted according to different application scenarios (such as water treatment, food processing, etc.). The product meets the core quality standards, and relevant test reports can be provided to ensure it matches the actual application needs.

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