Product Details
Ferric Sodium Diethylenetriaminepentaacetate CAS#12389-75-2
Ferric sodium diethylenetriaminepentaacetate, also known as DTPA-FeNa, is a highly efficient and stable iron chelate complex. It has the CAS number 12389-75-2, a chemical formula of C₁₄H₁₉FeN₃NaO₁₀, and a molecular weight of 468.15.
DTPA-FeNa appears as a crystalline powder with a color ranging from pale yellowish-brown to dark red, while high-purity products are typically yellow. It is readily soluble in water, with a solubility of approximately 113 g/L at 30°C, slightly soluble in alcohols, and virtually insoluble in other organic solvents.
Due to its efficient and stable chelating properties, DTPA-FeNa is widely used in various fields, including agriculture, medicine, and industry.
Key Application Areas
Agriculture: DTPA-FeNa is used as a highly efficient iron micronutrient fertilizer for soil application, hydroponic systems, and foliar spraying. It effectively helps correct iron-deficiency chlorosis and improves iron uptake efficiency, making it widely used in horticulture and the cultivation of cash crops.
Pharmaceuticals: DTPA-FeNa serves as a raw material for iron supplements used in the treatment of iron-deficiency anemia. Its stable chelated structure can significantly improve iron bioavailability while helping reduce gastrointestinal irritation.
Industry: DTPA-FeNa is used as a bleaching aid in papermaking to improve pulp brightness and help inhibit yellowing. It also functions as a redox initiator in polymer synthesis and as a metal-ion chelating agent in metal separation and catalytic reaction systems.
Key Physical & Chemical Properties
| Property | Specification |
|---|---|
| Composition | Iron(III) DTPA sodium salt |
| Appearance | Yellow/reddish-brown powder or liquid |
| Iron Content | Typical 11% (Fe, powder) |
| Solubility | Fully soluble in water |
| Stability pH | Stable at pH 5–9 (high pH) |
| Chelating Agent | DTPA |
| Grades | Fertilizer / industrial |
Main Applications
Agriculture & Horticulture: Chelated iron source to correct/prevent iron deficiency (chlorosis), especially in alkaline soils.
Hydroponics & Fertigation: Readily absorbed iron source for nutrient solutions.
Fertilizer Formulation: Component of soluble trace-element/complete micronutrient fertilizers.
Water Treatment: Chelating/complexing agent to control metal ions.
Industrial: Stabilizer for metal ions in selected processes.
