Synonym: Disodium ethylenediaminetetraacetate dihydrate, EDTA disodium salt, EDTA-Na2, Edathamil, Edetate disodium salt dihydrate, Sequestrene Na2
|Related Categories||Analytical Reagents, Analytical/Chromatography, Complexometric Reagents, Powders, Complexometric Titration Reagents (EDTA Titration), Essential Chemicals,|
|grade||Reag. Ph. Eur.|
|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)|
Chelator of divalent cations. Inhibits enzymes, such as metalloproteases, that require divalent cations for activity.
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AnalytiX Volume 8 Article 3
Keywords: Complexometric titrations, Filtration, High performance liquid chromatography, Indicators, Precipitation, Separation, Solvents, Substitutions, Titrations
Corp MSDS 1 (1), 1606:D / FT-IR 2 (1), 902:B / FT-IR 1 (1), 567:B / IR-Spectra (2), 303:G / IR-Spectra (3), 340:D / RegBook 1 (1), 647:I / Sigma FT-IR 1 (2), 549:B / Structure Index 1, 94:A:8
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