Ethylenediamine-N,N'-bis((2-hydroxyphenyl)acetic acid) Chemical Properties

Melting point:

>215°C (dec.)

Boiling point:

492.4°C (rough estimate)

Density 

1.3595 (rough estimate)

refractive index 

1.5700 (estimate)

storage temp. 

2-8°C(protect from light)

solubility 

Aqueous Base (Slightly, Heated)

pka

1.27±0.10(Predicted)

form 

Solid

color 

White to Light Brown

Stability:

Hygroscopic

EPA Substance Registry System

Benzeneacetic acid, .alpha.,.alpha.'-(1,2-ethanediyldiimino)bis[2-hydroxy- (1170-02-1)

Ethylenediamine-N,N'-bis((2-hydroxyphenyl)acetic acid) Usage And Synthesis

Uses

EDDHA is used as an inorganic fertilizer.

Agricultural Uses

EDDHA is short for Ethylenediamine-N,N'-bis((2-hydroxyphenyl)acetic acid. It is a chelating agent (C₁₈H₂₀O₆N₂) that forms a chelate, which complexes with metal ions. Fe-EDDHA, which is stable over an entire pH range, is commonly used as an iron fertilizer because of its affinity to iron. The comparison of a soil treated with iron chelates, such as EDTA (ethylenediamine tetra- aceticacid), DTPA (diethylenetriaminepentaaceticacid) or EDDHA shows that EDDHA is most effective in making iron available to plants.

Purification Methods

Purify it by extensive Soxhlet extraction with acetone. [Bonadies & pK Est( 2) pK Est( 3) Carrano J Am Chem Soc 108 4088 1986].

Ethylenediamine-N,N'-bis((2-hydroxyphenyl)acetic acid)(1170-02-1)Related Product Information

• Betaine
• Glycine
• 1-Hydroxyethylidene-1,1-diphosphonic acid
• 4-Hydroxy-D-(-)-2-phenylglycine
• Ethyl 2-(Chlorosulfonyl)acetate
• Ascoric Acid
• 2-Hydroxybenzylamine
• N,N'-Diethylethylenediamine
• 2-(2-Aminoethylamino)ethanol
• N-Isopropylethylenediamine
• Eddha-Fe-6
• Sarcosine
• Acetic anhydride
• Ethylenediamine
• N,N'-Diisopropylethylenediamine
• DL-2-Phenylglycinol
• 2-HYDROXYPHENETHYL ALCOHOL
• Sodium ferric EDDHA