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N-(2-Hydroxyethyl)ethylenediaminetriacetic acid

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N-(2-Hydroxyethyl)ethylenediaminetriacetic acid Basic information

Product Name:
N-(2-Hydroxyethyl)ethylenediaminetriacetic acid
CAS:
150-39-0
MF:
C10H18N2O7
MW:
278.26
EINECS:
205-759-3
Mol File:
150-39-0.mol
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N-(2-Hydroxyethyl)ethylenediaminetriacetic acid Chemical Properties

Melting point:
212 °C (dec.)(lit.)
Boiling point:
421.08°C (rough estimate)
Density 
1.3300 (rough estimate)
refractive index 
1.4550 (estimate)
storage temp. 
Store at RT.
solubility 
3  M NaOH: 0.1 M, clear, colorless
pka
pK1:2.39;pK2:5.37;pK3:9.93 (25°C)
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)
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Safety Information

Hazard Codes 
Xi,Xn
Risk Statements 
36/37/38-22-40-20/21/22
Safety Statements 
26-37/39-36-22
WGK Germany 
-
RTECS 
MB9185000
HS Code 
29224999
Hazardous Substances Data
150-39-0(Hazardous Substances Data)

MSDS

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N-(2-Hydroxyethyl)ethylenediaminetriacetic acid Usage And Synthesis

Chemical Properties

Crystalline

Uses

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.]

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