EDDHA Iron

Chemical Name:Sodium Iron Ethylenediamine-di(o-hydroxyphenylacetate) (Iron Ethylenediamine-di-o-carboxymethylphenol)

Trade Name:EDDHA-Fe 6%; EDDHA Iron 6%; EDDHA-FeNa
Molecular Formula:C₁₈H₁₆N₂O₆FeNa
Molecular Weight:435.2
Appearance:Reddish brown to black fine powder, completely soluble in water
Iron Content: 5.8–6.5%
pH (1% aqueous solution): 7–9
Heavy Metals (Pb): ≤ 30 ppm
Ortho-Isomer Content: 4.8%
Appearance: Dark red crystalline solid
Application & Dosage:
1. Foliar Spray: Dilute 3000–3500 times for knapsack sprayers; dilute 6000 times for large motorized spray guns.
2. Drip Irrigation & Fertigation: Apply regularly with irrigation water. Adjust frequency according to iron deficiency severity. Dosage: 800–1000 g per mu.
3. Soil Drench & Root Application: Dissolve product in water first. Dig 6–8 trenches or a continuous groove 15–20 cm deep around the tree canopy, pour the solution evenly, then cover with soil.