Description

Ethylenediaminetetraacetic Acid Diammonium Salt is a water-soluble, versatile chelating agent widely used in industrial and analytical chemistry. Its primary value lies in its exceptional ability to sequester di- and trivalent metal ions, forming stable, water-soluble complexes. This property makes it indispensable for professionals in water treatment, textile processing, pulp & paper manufacturing, and analytical laboratories where precise metal ion control is critical.

Application

• Industrial Water Treatment: Acts as a highly effective scale and corrosion inhibitor in boiler and cooling water systems by chelating calcium, magnesium, and iron ions.
• Textile Processing: Used in dyeing and bleaching baths to deactivate metal ions that can cause color distortion, fabric degradation, and peroxide decomposition.
• Pulp & Paper Industry: Enhances brightness and stability of pulp by chelating transition metals during hydrogen peroxide bleaching processes.
• Analytical Chemistry: Serves as a key component in buffer solutions, titrants (e.g., in complexometric titrations), and as a masking agent in various analytical methods.
• Cleaning Formulations: Incorporated into industrial and institutional cleaners to improve efficacy by preventing metal-ion-caused soil redeposition and soap scum formation.
• Agriculture & Horticulture: Used in micronutrient fertilizer formulations to improve the bioavailability of essential metal ions like iron and zinc for plant uptake.
• Cosmetics & Personal Care: Functions as a stabilizer and chelating agent in products to protect against spoilage and discoloration caused by trace metal contaminants.

Basic Information

Product Name	Ethylenediaminetetraacetic Acid Diammonium Salt
CAS No.	20824-56-0
Molecular Formula	C10H20N4O8 • 2(NH3) or C10H22N6O8
Molecular Weight	358.32 g/mol (for C10H22N6O8)
Synonyms	EDTA Diammonium Salt; Diammonium EDTA; Diammonium Edetate; Edetate Diammonium; Diammonium (Ethylenedinitrilo)tetraacetate; Diammonium N,N'-1,2-ethanediylbis[N-(carboxymethyl)glycine]; Sequestrene Diammonium Salt; Versene Diammonium Salt; (Ethylenedinitrilo)tetraacetic acid diammonium salt
EINECS	244-063-3

Quality Control

Our Ethylenediaminetetraacetic Acid Diammonium Salt is manufactured under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and performance. We provide comprehensive Certificates of Analysis (COA) detailing assay, pH, loss on drying, and heavy metal content, supporting compliance with relevant industry standards. Our commitment to consistent quality and traceability ensures reliability for your critical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture, which can lead to caking and potential degradation.

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (Titration)	≥ 98.0 %
pH (5% Solution)	4.0 - 6.0
Loss on Drying	≤ 2.0 %
Heavy Metals (as Pb)	≤ 20 ppm
Iron (Fe)	≤ 10 ppm
Water Solubility	Clear, colorless solution

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