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Merck
CN

H8126

N-(2-Hydroxyethyl)ethylenediamine-N,N′,N′-triacetic acid

~98%

Synonym(s):

N-Carboxymethyl-N′-(2-hydroxyethyl)-N,N′-ethylenediglycine, HEDTA, HEEDTA

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About This Item

Linear Formula:
HOCH2CH2N(CH2CO2H)CH2CH2N(CH2CO2H)2
CAS Number:
150-39-0
Molecular Weight:
278.26
UNSPSC Code:
12352116
NACRES:
NA.22
PubChem Substance ID:
57654273
EC Number:
205-759-3
Beilstein/REAXYS Number:
1804795
MDL number:
MFCD00004294
Assay:
~98%
Form:
powder

Key Documents

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InChI key

URDCARMUOSMFFI-UHFFFAOYSA-N

InChI

1S/C10H18N2O7/c13-4-3-11(5-8(14)15)1-2-12(6-9(16)17)7-10(18)19/h13H,1-7H2,(H,14,15)(H,16,17)(H,18,19)

SMILES string

OCCN(CCN(CC(O)=O)CC(O)=O)CC(O)=O

assay

~98%

form

powder

mp

212 °C (dec.) (lit.)

Quality Level

200

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Application

N-(2-Hydroxyethyl)ethylenediamine-N,N′,N′-triacetic acid (HEDTA) can be used as an ionophore for the selective determination of Fe(III) ions by the potentiometric method. It is also used to form complexes with metal ions such as iron(II), copper (II), zinc(II), manganese(II), and uranium(VI) ions. Therefore, HEDTA plays an important role in the separation of f-elements and the treatment and disposal of nuclear waste.

pictograms

CorrosionExclamation mark
GHS05,GHS07

signalword

Danger

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1 - Skin Irrit. 2

Storage Class

11 - Combustible Solids

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
BCCN9056
BCCN6138
BCCN6137
BCCL5084
BCCK9180

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Y M Tzou et al.
Journal of environmental quality, 32(6), 2076-2084 (2003-12-17)
Detoxification of Cr(VI) through reduction has been considered an effective method for reclaiming Cr-contaminated soil, sediment, and waste water. Organic matter is widely distributed in soil and aquatic systems; however, low Cr(VI) reduction rates inhibit the adoption of Cr reduction
H Chen et al.
Chemosphere, 45(1), 21-28 (2001-09-27)
Phytoremediation has shown great potential as an alternative treatment for the remediation of heavy-metal-contaminated soils and groundwater. However, the lack of a clear understanding pertaining to metal uptake/translocation mechanisms, enhancement amendments, and external effects on phytoremediation has hindered its full-scale
Anders D Nielsen et al.
Analytical biochemistry, 314(2), 227-234 (2003-03-26)
Determination of binding parameters for metal ion binding to proteins usually requires preceding steps to remove protein-bound metal ions. Removal of bound metal ions from protein is often associated with decreased stability and inactivation. We present two simple isothermal titration
ZuLiang Chen et al.
Analytical and bioanalytical chemistry, 374(3), 520-525 (2002-10-10)
An on-column complexation method has been developed for the simultaneous determination of V(IV) and V(V). Vanadium species were chelated with aminopolycarboxylic acids to form anionic complexes which were separated by capillary zone electrophoresis (CZE) with direct UV detection. Ethylenediaminetetraacetic acid
ZuLiang Chen et al.
Rapid communications in mass spectrometry : RCM, 23(3), 419-424 (2009-01-08)
The speciation of Zn-aminopolycarboxylic complexes was investigated using both electrospray ionization mass spectrometry (ESI-MS) and ion chromatography (IC) with inductively coupled plasma mass spectrometry (ICP-MS). The resulting ESI mass spectra indicated that [Zn(HEDTA)](1-), [Zn(NTA)](1-), [Zn(EDTA)](2-) and [Zn(DTPA)](3-) were all simultaneously
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