Sodium Iron DTPA

Sodium Iron DTPA (CAS 12389-75-2), also known as DTPA Fe or Iron Chelate, is a synthetic iron-chelated micronutrient used to deliver bioavailable iron where conventional iron salts fail.

Where is Sodium Iron DTPA used?

• Agriculture: foliar spray or soil drench to correct iron-deficiency chlorosis in high-value crops such as citrus, grapes and ornamentals where soil pH limits iron uptake
• Hydroponic and fertigation systems: stable iron source in nutrient solutions where competing ions would otherwise precipitate unformulated iron salts
• Water treatment: sequesters iron and prevents scale formation or discoloration in industrial and municipal systems
• Industrial formulations: stabilizer where free iron ions would catalyze oxidative degradation
• It maintains iron in a soluble, plant-accessible form across a broad pH range, making it the preferred iron source in alkaline and calcareous soils.
• Applied directly to the root zone via drip irrigation for homogeneous iron distribution.
• Used as a key component of NPK fertilizers.

Good to know: Purity and chelated iron content are the primary quality parameters referenced in procurement and product certification.

Formulation notes

• Offers greater stability than conventional EDTA chelates.
• Should avoid contact with strong oxidizing agents.

Typical specification

• Sold in liquid forms with 6% or 11% iron content.
• Supplied in powder and granular form.
• Purity of ≥98.0% (HPLC).
• Offered in technical grade.

Technical content is compiled and updated by the SoleChem product team from public technical sources; the certificate of analysis (COA) governs product-specific specifications.