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Merck
CN

1.08452

Ethylenedinitrilotetraacetic acid

suitable for titration

Synonym(s):

Ethylenedinitrilotetraacetic acid, EDTA, Edetic acid, Diaminoethane-tetraacetic acid

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About This Item

Empirical Formula (Hill Notation):
C10H16N2O8
CAS Number:
Molecular Weight:
292.24
UNSPSC Code:
12352106
EC Index Number:
200-449-4
NACRES:
NA.21
MDL number:
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Product Name

Ethylenedinitrilotetraacetic acid, Ethylenedinitrilotetraacetic acid. CAS 60-00-4, pH 2.5 (10 g/l, H2O, 23 °C) (slurry).

vapor pressure

<0.013 hPa ( 20 °C)

Quality Level

assay

99-101% (complexometric)

form

solid

autoignition temp.

>200 °C

potency

2580 mg/kg LD50, oral (Rat)

reaction suitability

reaction type: Complexometric reactions

technique(s)

titration: suitable

pH

2.5 (23 °C, 10 g/L in H2O, slurry)

mp

220 °C (decomposition)

transition temp

flash point >400 °C (DIN 51758)

solubility

water: ~0.5 g/L at 20 °C

density

0.86 g/cm3 at 20 °C

bulk density

600 kg/m3

cation traces

Fe: ≤0.001%, heavy metals (as Pb): ≤0.001%

storage temp.

no temp limit

SMILES string

N(CCN(CC(=O)O)CC(=O)O)(CC(=O)O)CC(=O)O

InChI

1S/C10H16N2O8/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)

InChI key

KCXVZYZYPLLWCC-UHFFFAOYSA-N

Application


  • Photo-Fenton oxidation of cylindrospermopsin at neutral pH with LEDs.: This study investigates the use of photo-Fenton processes catalyzed by Ethylenedinitrilotetraacetic acid (EDTA) under neutral pH conditions, optimizing reaction parameters for environmental applications (Ortiz et al., 2023).

  • Mixtures of chelating agents to enhance photo-Fenton process at natural pH: Influence of wastewater matrix on micropollutant removal and bacterial inactivation.: Research shows how EDTA, when used in combination with other chelators, enhances the efficiency of the photo-Fenton process at natural pH levels for water treatment, focusing on micropollutant degradation and pathogen inactivation (López-Vinent et al., 2021).

  • A new route to "bifunctional" chelating agents: conversion of amino acids to analogs of ethylenedinitrilotetraacetic acid.: Describes a synthetic method to transform standard amino acids into bifunctional analogs of EDTA, expanding the utility of these chelators in biochemical and industrial applications (Yeh et al., 1979).

Analysis Note

Assay (complexometric): 99 - 101 %
Identity (IR-spectrum): conforms
in ammonia insoluble components: ≤ 0.005 %
Heavy metals (as Pb): ≤ 0.001 %
Fe (Iron): ≤ 0.001 %
Nitrilotriacetic acid: ≤ 0.1 %
Sulfated ash: ≤ 0.1 %
Water (according to Karl Fischer): ≤ 0.2 %


pictograms

Exclamation mark

signalword

Warning

hcodes

Hazard Classifications

Eye Irrit. 2

Storage Class

11 - Combustible Solids

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable



Certificates of Analysis (COA)

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Global Trade Item Number

SKUGTIN
820991000504022536471204
820991100004022536471228
P23954-500G04061834363026
52519-100MG04065266776966
820991025004022536471211
P23954-15KG04061832768922
P23954-1KG04061826220320
P23954-100G04061834363019
P23954-5G04061834363033