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H8126

Sigma-Aldrich

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:
Molecular Weight:
278.26
Beilstein:
1804795
EC Number:
MDL number:
UNSPSC Code:
12352116
PubChem Substance ID:
NACRES:
NA.22

Assay

~98%

form

powder

mp

212 °C (dec.) (lit.)

SMILES string

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

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)

InChI key

URDCARMUOSMFFI-UHFFFAOYSA-N

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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

Signal Word

Danger

Hazard Statements

Hazard Classifications

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

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Xi-wen Yang et al.
Journal of the science of food and agriculture, 91(13), 2322-2328 (2011-05-07)
Zinc (Zn) and phytic acid content in grain crops are directly related to their nutritional quality and therefore human health. To investigate the nutritional influences of phosphorus (P) and Zn levels on wheat (Triticum aestivum L.), plants were grown hydroponically
Adam T Ruley et al.
Environmental pollution (Barking, Essex : 1987), 144(1), 11-18 (2006-03-09)
Effects of lead (Pb) and chelators, such as EDTA, HEDTA, DTPA, NTA and citric acid, were studied to evaluate the growth potential of Sesbania drummondii in soils contaminated with high concentrations of Pb. S. drummondii seedlings were grown in soil
C L Mackowiak et al.
Journal of environmental quality, 32(6), 2230-2237 (2003-12-17)
Fluoride (F-) pollutants can harm plants and the animals feeding on them. However, it is largely unknown how complexing and chelating agents affect F bioavailability. Two studies were conducted that measured F- bioavailability and uptake by rice (Oryza sativa L.).
S Goldstein et al.
Inorganic chemistry, 40(19), 4966-4970 (2001-09-05)
Volumes of activation for the formation and homolysis of the transient complexes (hedta)Fe(III)-CO(2)(2-) and (hedta)Fe(III)-CH(3)(-) (HOCH(2)CH(2)N(CH(2)CO(2-))CH(2)CH(2)N(CH(2)CO(2-))(2) = hedta) were determined using high-pressure pulse-radiolysis techniques. A comparison of the results with those for analogous complexes with other central transition-metal cations (M(n+))
Monika Bhadauria
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 50(7), 2487-2495 (2012-01-19)
A study was undertaken to evaluate protective effect of chelating agent, N-(2-hydroxy ethyl ethylene diamine triacetic acid) [HEDTA] with and without propolis against aluminum (Al) induced toxicity in liver, kidney and brain. Toxicity was induced by single administration of aluminum

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