Description

1,2-Diaminopropane-N,N,N',N'-Tetraacetic Acid Ferric Sodium Salt is a water-soluble, iron(III)-complexed chelating agent derived from PDTA (1,2-Diaminopropanetetraacetic acid). This compound is valued for its high thermodynamic stability and selectivity for ferric ions, making it an effective and robust sequestrant in demanding chemical environments. It is primarily utilized in industrial water treatment, advanced detergent formulations, and as a specialized component in analytical chemistry and photographic development processes where precise iron control is critical.

Application

• Industrial Water Treatment: Acts as a high-performance scale and corrosion inhibitor in cooling towers, boilers, and closed-loop systems, particularly effective against iron oxide deposition.
• Detergent & Cleaning Formulations: Serves as a powerful builder and sequestrant in heavy-duty industrial and institutional cleaners to inactivate metal ions that interfere with cleaning efficacy.
• Photographic & Imaging: Used in bleach-fix and developing solutions to control iron concentrations and maintain solution stability.
• Analytical Chemistry: Employed as a standard or reagent in complexometric titrations and as a buffer component in trace metal analysis.
• Pulp & Paper Processing: Helps in peroxide stabilization and metal ion control during bleaching processes to improve pulp brightness and quality.
• Textile Processing: Prevents metal-catalyzed degradation of peroxides and dyes, ensuring consistent color and fabric quality.

Basic Information

Product Name	1,2-Diaminopropane-N,N,N',N'-Tetraacetic Acid Ferric Sodium Salt
CAS No.	73533-36-5
Molecular Formula	C11H12FeN2Na3O8 • xH2O
Molecular Weight	Anhydrous: ~ 441.0 g/mol
Synonyms	Ferric Sodium PDTA; Iron(III) Sodium PDTA Complex; PDTA-Fe-Na; 1,2-Diaminopropanetetraacetic Acid Ferric Sodium Salt; (Propane-1,2-diyldinitrilo)tetraacetic Acid Iron(III) Sodium Salt; Iron Trisodium 1,2-Diaminopropane-N,N,N',N'-tetraacetate; Ferric Trisodium PDTA; Trisodium Ferric Propylenediaminetetraacetate
EINECS	Contact for details

Quality Control

Our 1,2-Diaminopropane-N,N,N',N'-Tetraacetic Acid Ferric Sodium Salt is manufactured under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure consistent purity, complex stability, and performance. Certificates of Analysis (COA) detailing assay, iron content, pH, and other critical parameters are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed after each use to minimize exposure to atmospheric moisture, which can affect stability and handling properties.

Specification

Item	Specification
Appearance	Yellowish to brown powder or crystalline solid
Identification (IR)	Conforms to standard
Assay (Complexometric Titration)	≥ 95.0%
Iron (Fe) Content	10.0 - 13.0 %
pH (1% Solution)	6.0 - 8.0
Water Content (Karl Fischer)	≤ 8.0%
Chloride (Cl)	≤ 0.1%
Sulfate (SO4)	≤ 0.1%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.