Description

Ethylenediaminetetraacetic Acid Disodium Salt is a high-purity chelating agent widely used to sequester metal ions in aqueous systems. Its primary value lies in its exceptional ability to bind di- and trivalent cations, preventing unwanted precipitation, catalysis, and oxidation reactions. This makes it an essential raw material for industries ranging from pharmaceuticals and cosmetics to food processing and industrial cleaning, where precise control over metal ion activity is critical for product stability and performance.

Application

• Pharmaceutical Manufacturing: Used as a stabilizer in formulations to chelate trace metals that can catalyze drug degradation, and as an anticoagulant in blood collection tubes.
• Cosmetics & Personal Care: Acts as a sequestrant in shampoos, soaps, and lotions to improve clarity, stability, and shelf-life by inactivating water hardness ions.
• Food & Beverage Industry (FCC Grade): Employed as a preservative and color/ flavor stabilizer in canned products, dressings, and soft drinks to prevent spoilage and rancidity.
• Industrial Cleaning & Boiler Treatment: Key component in detergent formulations and water treatment chemicals to prevent scale formation by complexing calcium and magnesium ions.
• Laboratory & Analytical Chemistry: Serves as a standard reagent in complexometric titrations (EDTA titrations) for determining water hardness and metal ion concentration.
• Textile & Pulp/Paper Processing: Used to control metal ions in dyeing baths and bleaching processes, ensuring consistent color and preventing fiber damage.
• Agriculture & Micronutrient Fertilizers: Incorporated in chelated micronutrient formulations to enhance plant availability and uptake of essential metals like iron and zinc.

Basic Information

Product Name	Ethylenediaminetetraacetic Acid Disodium Salt
CAS No.	139-33-3
Molecular Formula	C10H14N2Na2O8 • 2H2O
Molecular Weight	372.24 g/mol (Dihydrate)
Synonyms	Disodium EDTA; Edetate Disodium; Disodium Edetate; Disodium Ethylenediaminetetraacetate; EDTA Disodium Salt; EDTA-2Na; (Ethylenedinitrilo)tetraacetic Acid Disodium Salt; Sequestrene NA2; Titriplex® III
EINECS	205-358-3

Quality Control

We supply Ethylenediaminetetraacetic Acid Disodium Salt in various grades, including Technical, USP, and FCC, to meet diverse industrial requirements. Our production follows strict quality management systems, and each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting key parameters such as assay, loss on drying, and heavy metal content.

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); the original container must be kept tightly sealed after use to prevent absorption of atmospheric moisture, which can lead to caking.

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (Titration)	≥ 99.0%
pH (5% Solution)	4.0 - 6.0
Loss on Drying	≤ 10.0%
Heavy Metals (as Pb)	≤ 20 ppm
Iron (Fe)	≤ 20 ppm

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