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HomeProduct name listN-(2-Hydroxyethyl)ethylenediaminetriacetic acid

N-(2-Hydroxyethyl)ethylenediaminetriacetic acid

Synonym(s):N-Carboxymethyl-N′-(2-hydroxyethyl)-N,N′-ethylenediglycine;HEDTA;HEEDTA

  • CAS NO.:150-39-0
  • Empirical Formula: C10H18N2O7
  • Molecular Weight: 278.26
  • MDL number: MFCD00004294
  • EINECS: 205-759-3
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-11-20 11:41:24
N-(2-Hydroxyethyl)ethylenediaminetriacetic acid Structural

What is N-(2-Hydroxyethyl)ethylenediaminetriacetic acid?

Chemical properties

Crystalline

The Uses of N-(2-Hydroxyethyl)ethylenediaminetriacetic acid

N-(2-Hydroxyethyl)ethylenediaminetriacetic acid is a chelating agent.

The Uses of N-(2-Hydroxyethyl)ethylenediaminetriacetic acid

Chelating compound.

Purification Methods

Crystallise HEDTA from warm H2O, after filtering, by addition of 95% EtOH and allowing to cool. The crystals, collected on a sintered-glass funnel, are washed three times with cold absolute EtOH, then again crystallised from H2O. After leaching with cold H2O, the crystals are dried at 100o under vacuum. [Spedding et al. J Am Chem Soc 78 34 1956, Beilstein 4 IV 2449.]

Properties of N-(2-Hydroxyethyl)ethylenediaminetriacetic acid

Melting point: 212 °C (dec.)(lit.)
Boiling point: 421.08°C (rough estimate)
Density  1.3300 (rough estimate)
vapor pressure  0.01Pa at 20℃
refractive index  1.4550 (estimate)
storage temp.  Inert atmosphere,Room Temperature
solubility  3  M NaOH: 0.1 M, clear, colorless
form  powder to crystal
pka pK1:2.39;pK2:5.37;pK3:9.93 (25°C)
color  White to Almost white
Water Solubility  soluble
BRN  1804795
CAS DataBase Reference 150-39-0(CAS DataBase Reference)
EPA Substance Registry System (2-Hydroxyethyl)ethylenediaminetriacetic acid (150-39-0)

Safety information for N-(2-Hydroxyethyl)ethylenediaminetriacetic acid

Signal word Warning
Pictogram(s)
ghs
Exclamation Mark
Irritant
GHS07
GHS Hazard Statements H315:Skin corrosion/irritation
H319:Serious eye damage/eye irritation
H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes P261:Avoid breathing dust/fume/gas/mist/vapours/spray.
P264:Wash hands thoroughly after handling.
P264:Wash skin thouroughly after handling.
P271:Use only outdoors or in a well-ventilated area.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352:IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Computed Descriptors for N-(2-Hydroxyethyl)ethylenediaminetriacetic acid

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