1.08452

Ethylenedinitrilotetraacetic acid

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

• Synonym(s): Ethylenedinitrilotetraacetic acid, EDTA, Edetic acid, Diaminoethane-tetraacetic acid
• Empirical Formula (Hill Notation): C₁₀H₁₆N₂O₈
• CAS Number: 60-00-4
• Molecular Weight: 292.24
• MDL number: MFCD00003541
• UNSPSC Code: 12352106
• EC Index Number: 200-449-4

Properties

• vapor pressure: <0.013 hPa ( 20 °C)
• Quality Level: 100
• 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
• 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

Description

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 %

Safety Information

• Pictograms: GHS07
• Signal Word: Warning
• Hazard Statements: H319
• Precautionary Statements: P264 - P280 - P305 + P351 + P338 - P337 + P313
• Hazard Classifications: Eye Irrit. 2
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 2
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable