CAS Number:6381‑92‑6
Synonyms: EDTA disodium salt dihydrate; Disodium EDTA; Edetate Disodium; Sequestrene Na₂
Chemical Formula:C₁₀H₁₄N₂Na₂O₈ · 2H₂O
Product Introduction
A white crystalline dihydrate salt with 99–101% assay purity, EDTA Disodium is a powerful chelating agent for divalent cations (e.g., Ca²⁺, Fe²⁺). Commonly used in molecular biology, diagnostics, cleaners, and industrial formulations.
| Property | Value |
|---|---|
| Appearance | White crystalline powder (dihydrate) |
| Purity (titration/assay) | 99.0–101.0 % |
| Molecular Weight | 372.24 g/mol |
| Melting Point | ~248 °C (decomposes) |
| Density | ~1.08–1.10 g/cm³ |
| Solubility (water) | 100 g/L @ 20 °C |
| Water Content | ~2 mol H₂O per mole; loss on drying ~8.7–11.4 % |
| Refractive Index (n₂₀ᴅ) | ~1.363 |
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