Product Information
Chemical Name Ethylenediaminetetraacetic acid disodium salt dihydrate
Alias Disodium Edetate Dihydrate, EDTA-2Na, EDTA Disodium Salt Dihydrate
CAS No. 6381-92-6
Molecular Formula C₁₀H₁₄N₂Na₂O₈·2H₂O
Molecular Weight 372.24
Chemical Type Organic chelating agent
Chemphysical Properties
Appearance White crystalline powder
Solubility Soluble in water, practically insoluble in ethanol
pH (1% aqueous) 4.0 ~ 5.0
Odor Odorless
Quality Specification (Industrial / Cosmetic / Pharma Grade)
| Test Item | Standard |
|---|---|
| Assay (EDTA-4Na) | ≥99.0% |
| Heavy metals (Pb) | ≤0.001% |
| Iron (Fe) | ≤0.001% |
| Chloride | ≤0.01% |
| Sulphate | ≤0.05% |
| Loss on drying | ≤10.0% |
Application & Use
Disodium EDTA Dihydrate sequesters metal ions to prevent oxidation, discoloration and instability. It is common in cosmetic formulas, pharma formulations, food preservation, water treatment, textile printing & dyeing and laboratory titration analysis. Powerful chelating agent to bind Ca, Mg, Fe, Cu and heavy metal ions.
Cosmetics & personal care: Stabilizer, prevent discoloration & extend shelf life.
Pharma: Formulation stabilizer, blood anticoagulant, lab biochemical reagent.Food (E386): Avoid browning and flavor deterioration.
Water treatment / detergents: Water softener & scale control.
Textile & paper: Bleaching & dyeing auxiliary.
Electroplating, leather, agriculture, photographic solution.
Packing Delivery & Storage
Packing: 25kg woven bag / fiber drum with inner PE bag.
Storage: Keep container tightly sealed, store in cool, dry and ventilated warehouse, protect from moisture.
Shelf life: 24 months under proper storage.
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