Acide diéthylènetriaminepentaacétique pour des chélates de micronutriments et industriels très stables
DTPA Acid (diethylenetriaminepentaacetic acid) is a high-performance aminopolycarboxylic chelating agent designed for strong and stable complexation of multivalent metal ions. It is particularly effective for binding trivalent metals such as iron (Fe³⁺), making it widely used in agriculture, water treatment, and industrial processes.
In its acid form, DTPA provides flexibility for neutralization and formulation into various salt forms (Na5, Na3, and others), allowing formulators to tailor pH and performance characteristics. It delivers excellent chelation efficiency across a broad pH range, especially in neutral to moderately alkaline systems.
DTPA is an octadentate aminopolycarboxylate. Its structure contains five carboxylic acid groups and three nitrogen atoms, enabling formation of very stable metal complexes, especially with Fe³⁺ and other multivalent ions. The acid is typically supplied as a white crystalline powder with limited solubility in water in its protonated form and is commonly neutralized to form soluble sodium salts for practical applications.
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