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Ethylenediaminetetraacetic acid disodium salt dihydrate

Reag. Ph. Eur., 99-101%, ≤0.1% NTA (HPLC), for complexometry

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Synonym: Disodium ethylenediaminetetraacetate dihydrate, EDTA disodium salt, EDTA-Na2, Edathamil, Edetate disodium salt dihydrate, Sequestrene Na2

  • CAS Number 6381-92-6

  • Empirical Formula (Hill Notation) C10H14N2Na2O8 · 2H2O

  • Molecular Weight 372.24

  •  Beilstein Registry Number 3900609

  •  EC Number 205-358-3

  •  PubChem Substance ID 24861326

Properties

Related Categories Analytical Reagents, Analytical/Chromatography, Complexometric Reagents, Powders, Complexometric Titration Reagents (EDTA Titration), Essential Chemicals,
grade   Reag. Ph. Eur.
  for complexometry
assay   99-101%
impurities   ≤0.001% heavy metals (as Pb)
  ≤0.1% NTA (HPLC)
loss   ≤10% loss on drying, 150 °C, 3 h
pH   4-5 (20 °C, 5%)
mp   248 °C (dec.)(lit.)
anion traces   chloride (Cl-): ≤50 mg/kg
  sulfate (SO42-): ≤100 mg/kg
cation traces   Ca: ≤50 mg/kg
  Cu: ≤2 mg/kg
  Fe: ≤5 mg/kg
  Mg: ≤5 mg/kg
suitability   in accordance for appearance of solution
  in accordance for identity (IR)

Description

Application

Chelator of divalent cations. Inhibits enzymes, such as metalloproteases, that require divalent cations for activity.

General description

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Price and Availability

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Ethylenediaminetetraacetic acid disodium salt solution

Reag. Ph. Eur., volumetric, 0.1 M EDTA-Na2 (0.2N), for complexometry

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