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03659

Sigma-Aldrich

Ethylenediaminetetraacetic acid dipotassium salt dihydrate

BioUltra, ≥99.0% (KT)

Synonym(s):

(Ethylenedinitrilo)tetraacetic acid dipotassium salt, Dipotassium ethylenediaminetetraacetate dihydrate, EDTA dipotassium salt, Edathamil, Potassium ethylenediaminetetraacetate dibasic

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About This Item

Linear Formula:
HOOCCH2(KOOCCH2)NCH2CH2N(CH2COOK)CH2COOH · 2H2O
CAS Number:
25102-12-9
Molecular Weight:
404.45
EC Number:
217-895-0
UNSPSC Code:
12352107
NACRES:
NA.25

product line

BioUltra

Quality Level

200

assay

≥99.0% (KT)

form

powder

reaction suitability

reagent type: chelator

impurities

insoluble matter, passes filter test

pH

4.0-5.0 (25 °C, 0.1 M in H2O)

mp

255-280 °C (dec.) (lit.)

solubility

H2O: 0.1 M at 20 °C, clear, colorless

anion traces

chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤100 mg/kg

cation traces

Al: ≤5 mg/kg
As: ≤0.1 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
Li: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Na: ≤1000 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg

λ

0.1 M in H2O

UV absorption

λ: 260 nm Amax: 0.15
λ: 280 nm Amax: 0.02

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

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Application

Ethylenediaminetetraacetic acid dipotassium salt dehydrate can be used to study chelators, biochemicals and reagents. Ethylenediaminetetraacetic acid dipotassium salt dehydrate has been used to study the three dimensional hierarchy structures from self-assembly of quantum dots. Ethylenediaminetetraacetic acid dipotassium salt dehydrate acts as a catalyst by partially removing thiol stabilizers from the nanoparticle surface to induce the stabilization reaction of CdTe nanoparticles.
Used to eliminate inhibition of enzyme catalyzed reactions due to traces of heavy metals

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H332

Hazard Classifications

Acute Tox. 4 Inhalation

Storage Class

11 - Combustible Solids

wgk_germany

WGK 2

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
BCCG9669
BCCJ1469
BCCH8771
BCCC8116
BCCC0188

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Wei-Guo Yao et al.
Journal of nanoscience and nanotechnology, 11(2), 1297-1302 (2011-04-02)
We have reported first example of 3D hierarchy structure from self-assembly of water-soluble QDs followed by chemical reaction control. After addition of ethylenediaminetetraacetic acid, dipotassium salt dehydrate (EDTA) into L-cysteine-stabilized CdTe QD solution, the color of solution was observed to
Zhiyong Tang et al.
Journal of the American Chemical Society, 128(21), 7036-7042 (2006-05-25)
CdTe nanoparticles stabilized by l-cysteine are chemically transformed into CdS nanoparticles of the same diameter via an intermediate CdTeS alloy without any auxiliary source of sulfur. The reaction is induced by ethylenediaminetetraacetic acid dipotassium salt dehydrate (EDTA), which was demonstrated
Lisa K Philp et al.
PloS one, 10(2), e0117494-e0117494 (2015-02-07)
High saturated fat (HF-S) diets increase intramyocellular lipid, an effect ameliorated by omega-3 fatty acids in vitro and in vivo, though little is known about sex- and muscle fiber type-specific effects. We compared effects of standard chow, HF-S, and 7.5%

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