Description

Ethylenediaminetetraacetic Acid Diammonium Salt Monohydrate is a water-soluble, high-purity chelating agent widely used in analytical chemistry and industrial processes. This compound is valued for its exceptional ability to sequester di- and trivalent metal ions, forming stable, water-soluble complexes. It is a critical reagent for laboratories, pharmaceutical manufacturers, and industrial facilities requiring precise metal ion control. The product is supplied as a monohydrate, ensuring consistent performance and handling characteristics.

Application

• Analytical Chemistry: Primary standard for complexometric titrations (e.g., water hardness testing) and as a component in buffer solutions for trace metal analysis.
• Pharmaceuticals: Used as a stabilizer in formulations to chelate trace metals that can catalyze oxidation, and in the purification of active pharmaceutical ingredients (APIs).
• Industrial Processes: Acts as a scale and corrosion inhibitor in water treatment systems, boiler feedwater, and cooling towers.
• Cosmetics & Personal Care: Employed as a chelating agent in shampoos, soaps, and creams to enhance stability and shelf-life by inactivating metal impurities.
• Agriculture: Component in micronutrient fertilizers and agricultural chemical formulations to improve nutrient availability.
• Research & Development: Essential reagent in biochemical and molecular biology laboratories for metal ion-dependent enzyme studies and buffer preparation.

Basic Information

Product Name	Ethylenediaminetetraacetic Acid Diammonium Salt Monohydrate
CAS No.	7379-26-2
Molecular Formula	C10H22N4O10
Molecular Weight	358.30 g/mol
Synonyms	EDTA Diammonium Salt Monohydrate; Diammonium EDTA Monohydrate; Edetate Diammonium Monohydrate; (Ethylenedinitrilo)tetraacetic Acid Diammonium Salt Monohydrate; Ammonium EDTA Salt; Versene Diammonium Salt; Sequestrene Diammonium Salt; Diammonium Edetate
EINECS	230-907-8

Quality Control

Our Ethylenediaminetetraacetic Acid Diammonium Salt Monohydrate is manufactured under a strict quality management system. Each batch is tested to ensure it meets high-purity standards suitable for analytical and industrial applications. We provide comprehensive Certificates of Analysis (COA) with key parameters including assay, loss on drying, and heavy metal content. Our quality commitment ensures batch-to-batch consistency and reliability for your critical processes.

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 material is hygroscopic (moisture-sensitive). Keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture, which can affect purity and handling properties.

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (Titration)	≥ 98.0 %
pH (5% solution)	4.0 - 6.0
Loss on Drying	4.5 - 6.0 %
Heavy Metals (as Pb)	≤ 20 ppm
Chloride (Cl)	≤ 0.05 %
Sulfate (SO4)	≤ 0.05 %

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