EDTA-4Na (Tetrasodium EDTA) CAS 64-02-8 Powder
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EDTA-4Na (Tetrasodium EDTA) CAS 64-02-8 powder
EDTA-4Na (Tetrasodium EDTA) is a widely used chelating agent with strong metal ion chelating capacity, widely applied in various industrial fields. This product has completed REACH registration, complying with European chemical regulatory requirements, and MSDS download is available for users to obtain detailed safety information.
Product Synonyms
Common synonyms of EDTA-4Na include: Tetrasodium Ethylenediaminetetraacetate, Sodium Edetate, EDTA Tetrasodium Salt, Ethylenediaminetetraacetic Acid Tetrasodium Salt Dihydrate, EDTA-4Na Tetrahydrate, Tetrasodium Salt of EDTA, (Ethylenedinitrilo)Tetraacetic Acid Tetrasodium Salt, and EDTA 4Na.
Product Properties & Physical Characteristics
EDTA-4Na is a white crystalline powder, with stable chemical properties and incompatibility with strong oxidizing agents. Its molecular formula is C10H12N2Na4O8 (anhydrous) or C10H12N2Na4O8·4H2O (tetrahydrate), and CAS number is 64-02-8.
Key physical properties are as follows: it is soluble in water and acid, insoluble in alcohol, benzene and chloroform; the solubility in water is 0.1 g/ml at 20℃, presenting a clear and colorless solution; the melting point is above 300℃; the apparent density is 6.9 lb/gallon; the flash point is 325.2℃; and the pH value of 10 g/L solution at 25℃ is 10.5-11.5. It should be stored in a cool, dry and ventilated place to avoid direct sunlight and moisture.
Product Specifications
|
Test Item |
Specification |
|---|---|
|
Purity (as C10H12N2Na4O8·4H2O) |
≥ 99.0% |
|
Chloride (Cl⁻) |
≤ 0.01% |
|
Sulfate (SO₄²⁻) |
≤ 0.05% |
|
Heavy Metals (as Pb) |
≤ 0.001% |
|
Iron (Fe) |
≤ 0.001% |
|
Chelate Value (mg CaCO₃/g) |
≥ 215 |
|
pH (10 g/L, 25℃) |
10.5 - 11.5 |
|
Appearance |
White Crystalline Powder |
Product Applications
EDTA-4Na is widely used as a high-efficiency chelating agent in multiple industries due to its excellent metal ion chelating performance:
Water Treatment: Used as a water softener to chelate calcium, magnesium and other hardness ions in water, preventing scale formation; applied in boiler descaling to improve thermal efficiency and in wastewater treatment to complex heavy metal ions (such as lead and copper) for easy removal, meeting environmental emission standards.
Textile & Dyeing Industry: Serves as a dyeing auxiliary to eliminate the interference of metal ions on dyes, improving dyeing uniformity and color fastness; used in acrylic fiber processing as an initiator to enhance fiber whiteness and strength.
Daily Chemicals & Cleaning: Acts as a detergent additive to chelate calcium and magnesium ions in water, enhancing the decontamination ability of surfactants; used in hard surface cleaners to reduce water stain residues on glass, ceramics and other surfaces.
Paper Industry: Applied in pulp treatment to chelate metal ions, improving bleaching efficiency; stabilizes sizing agents to prevent reactions between metal ions and sizing agents, enhancing paper water resistance.
Other Fields: Used as a catalyst in synthetic rubber polymerization, a stabilizer in pharmaceutical and food industries, and a micronutrient in agriculture; also applied in polymer processing and metal plating.
FAQ
1. Is EDTA-4Na compliant with European regulations?
Yes, EDTA-4Na has completed REACH registration, meeting the requirements of European chemical regulations (EC) No 1907/2006, and can be legally sold and used in the European market. Relevant registration documents can be provided upon request.
2. How to obtain the safety information of EDTA-4Na?
MSDS download is available for EDTA-4Na, which contains detailed information on safety, first aid, handling and storage, and environmental impact. Users can obtain the MSDS document through the designated download channel to ensure safe use and transportation.
3. What is the shelf life of EDTA-4Na under proper storage conditions?
When stored in a cool, dry and ventilated warehouse, away from direct sunlight, moisture and strong oxidizing agents, the shelf life of EDTA-4Na is 24 months from the date of production. It is recommended to use the product within the shelf life to ensure its chelating performance.
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