03660

Ethylenediaminetetraacetic acid dipotassium salt dihydrate

puriss. p.a., ≥99.0% (KT)

• Sinonimo/i: K₂EDTA, (Ethylenedinitrilo)tetraacetic acid dipotassium salt, Dipotassium ethylenediaminetetraacetate dihydrate, EDTA dipotassium salt, Edathamil, Potassium ethylenediaminetetraacetate dibasic
• Formula condensata: HOOCCH₂(KOOCCH₂)NCH₂CH₂N(CH₂COOK)CH₂COOH · 2H₂O
• Numero CAS: 25102-12-9
• Peso molecolare: 404.45
• Numero CE: 217-895-0
• Codice UNSPSC: 12352100
• NACRES: NA.21

Proprietà

• Grado: puriss. p.a.
• Livello qualitativo: 200
• Saggio: ≥99.0% (KT)
• pH: 4-5 (25 °C, 50 mg/mL in H₂O)
• Punto di fusione: 255-280 °C (dec.) (lit.)
• Anioni in tracce: chloride (Cl^-): ≤50 mg/kg; sulfate (SO₄^2-): ≤200 mg/kg
• Cationi in tracce: 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
• Stringa SMILE: 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; JFROQFOCFOKDKU-UHFFFAOYSA-L

Descrizione

Descrizione generale

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.

Applicazioni

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

Informazioni sulla sicurezza

• Pittogrammi: GHS07
• Avvertenze: Warning
• Indicazioni di pericolo: H332
• Consigli di prudenza: P261 - P271 - P304 + P340 + P312
• Classi di pericolo: Acute Tox. 4 Inhalation
• Codice della classe di stoccaggio: 11 - Combustible Solids
• Classe di pericolosità dell'acqua (WGK): WGK 2
• Dispositivi di protezione individuale: dust mask type N95 (US), Eyeshields, Gloves