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DTPA-FeNa CAS 12389-75-2, which are ammonium-free and sodium-free, are available in both liquid and solid forms. DTPA-FeNa exists in yellow brown powder. It is a stable water chelate Fe in chelating state which is mainly used in agriculture, horticulture and chemicals.
Diethylenetriaminepentaacetic acid DTPA CAS 67-43-6 is an aminopolycarboxylic acid consisting of a diethylenetriamine backbone with five carboxymethyl groups. The molecule can be viewed as an expanded version of EDTA and is used similarly. It is a white, water-soluble solid.
Diethylenetriaminepentaacetic acid DTPA exists in white crystalline powder, and can be dissolved in hot water and lye, slightly soluble in water (solubility in water (20℃) 5 g / l), and insoluble in organic solvents such as alcohols and ethers.