03660

Ethylenediaminetetraacetic acid dipotassium salt dihydrate

puriss. p.a., ≥99.0% (KT)

• 동의어(들): K₂EDTA, (Ethylenedinitrilo)tetraacetic acid dipotassium salt, Dipotassium ethylenediaminetetraacetate dihydrate, EDTA dipotassium salt, Edathamil, Potassium ethylenediaminetetraacetate dibasic
• Linear Formula: HOOCCH₂(KOOCCH₂)NCH₂CH₂N(CH₂COOK)CH₂COOH · 2H₂O
• CAS Number: 25102-12-9
• Molecular Weight: 404.45
• EC Number: 217-895-0
• UNSPSC 코드: 12352100
• NACRES: NA.21

속성

• grade: puriss. p.a.
• Quality Level: 200
• 분석: ≥99.0% (KT)
• pH: 4-5 (25 °C, 50 mg/mL in H₂O)
• mp: 255-280 °C (dec.) (lit.)
• 음이온 미량물: chloride (Cl^-): ≤50 mg/kg; sulfate (SO₄^2-): ≤200 mg/kg
• 양이온 미량물: 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
• SMILES string: 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
• InChI key: JFROQFOCFOKDKU-UHFFFAOYSA-L

설명

일반 설명

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.

애플리케이션

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

안전성 정보

• 픽토그램: GHS07
• 신호어: Warning
• 유해 및 위험 성명서: H332
• 예방조치 성명서: P261 - P271 - P304 + P340 + P312
• Hazard Classifications: Acute Tox. 4 Inhalation
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 2
• 개인 보호 장비: dust mask type N95 (US), Eyeshields, Gloves