Product Information
CAS 6381-92-6
Molecular Formula C₁₀H₁₄N₂Na₂O₈·2H₂O
Molecular Weight 372.24Synonym EDTA Disodium Salt Dihydrate, EDTA-2Na Dihydrate
Appearance White crystalline powder
Chemphysical Properties
Solubility: Soluble in water, insoluble in alcohol
pH (1% solution): 4.0–5.5
Hygroscopicity: Slightly hygroscopic
Chelating power: High affinity for polyvalent metal cations
Quality Specification
| Test Item | Standard |
|---|---|
| Assay | 99.0%~101.0% |
| Loss on drying | 8.7%~11.4% |
| Heavy Metals (Pb) | ≤0.001% |
| Iron | ≤0.001% |
| Chloride | ≤0.01% |
| Sulfate | ≤0.05% |
Application & Use
Cosmetics: Sequestrant, prevents product oxidation and colour change
Pharmaceuticals: Stabilizer for liquid preparations, laboratory reagent
Food additive (E386): Antioxidant stabilizer
Water treatment & detergents: Scale inhibition and water softening
Textile, paper, electroplating auxiliariesPacking Delivery & Storage
Package: 25kg PE lined woven bag
Storage: Seal and store in cool dry ventilated warehouse, keep away from moisture
Transport: Protect packages from damage and rain
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