03660

Ethylenediaminetetraacetic acid dipotassium salt dihydrate

puriss. p.a., ≥99.0% (KT)

• Synonim(y): K₂EDTA, (Ethylenedinitrilo)tetraacetic acid dipotassium salt, Dipotassium ethylenediaminetetraacetate dihydrate, EDTA dipotassium salt, Edathamil, Potassium ethylenediaminetetraacetate dibasic
• Wzór liniowy: HOOCCH₂(KOOCCH₂)NCH₂CH₂N(CH₂COOK)CH₂COOH · 2H₂O
• Numer CAS: 25102-12-9
• Masa cząsteczkowa: 404.45
• Numer WE: 217-895-0
• Kod UNSPSC: 12352100
• NACRES: NA.21

Właściwości

• klasa czystości: puriss. p.a.
• Poziom jakości: 200
• Próba: ≥99.0% (KT)
• pH: 4-5 (25 °C, 50 mg/mL in H₂O)
• mp: 255-280 °C (dec.) (lit.)
• ślady anionów: chloride (Cl^-): ≤50 mg/kg; sulfate (SO₄^2-): ≤200 mg/kg
• ślady kationów: Ca: ≤10 mg/kg; Cd: ≤5 mg/kg; Co: ≤5 mg/kg; Cr: ≤5 mg/kg; Cu: ≤5 mg/kg; Fe: ≤5 mg/kg; Mg: ≤5 mg/kg; Mn: ≤5 mg/kg; Na: ≤1000 mg/kg; Ni: ≤5 mg/kg; Pb: ≤5 mg/kg; Zn: ≤5 mg/kg
• ciąg SMILES: O.O.O.O.[K+].[K+].[K+].[K+].OC(=O)CN(CCN(CC([O-])=O)CC([O-])=O)CC(O)=O.OC(=O)CN(CCN(CC(O)=O)CC([O-])=O)CC([O-])=O
• InChI: 1S/C10H16N2O8.2K.2H2O/c13-7(14)3-11(4-8(15)16)1-2-12(5-9(17)18)6-10(19)20;;;;/h1-6H2,(H,13,14)(H,15,16)(H,17,18)(H,19,20);;;2*1H2/q;2*+1;;/p-2
• Klucz InChI: JFROQFOCFOKDKU-UHFFFAOYSA-L

Opis

Opis ogólny

Ethylenediaminetetraacetic acid dipotassium salt dihydrate (K₂EDTA), is a well known chelating agent with various uses in chemical synthesis, analytical chemistry, and biochemistry. In chemical synthesis, K₂EDTA is often employed to remove metal impurities from solutions or as a complexation agent to control the reactivity of metal ions. It can be used to sequester or chelate metal ions such as calcium, magnesium, iron, and copper, which helps prevent undesired side reactions.

Zastosowanie

Ethylenediaminetetraacetic acid dipotassium salt dihydrate (K₂EDTA) can be used as:

• A mobile phase modifier in the separation of UV filters using HPLC.
• A chelating agent in the determination of traces of beryllium compound by colorimetric method.

Used to eliminate inhibition of enzyme catalyzed reactions due to traces of heavy metals

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Informacja o środkach bezpieczeństwa

• Piktogramy: GHS07
• Hasło ostrzegawcze: Warning
• Zwroty wskazujące rodzaj zagrożenia: H332
• Zwroty wskazujące środki ostrożności: P261 - P271 - P304 + P340 + P312
• Klasyfikacja zagrożeń: Acute Tox. 4 Inhalation
• Kod klasy składowania: 11 - Combustible Solids
• Klasa zagrożenia wodnego (WGK): WGK 2
• Środki ochrony indywidualnej: dust mask type N95 (US), Eyeshields, Gloves