Description

Disodium Edetate Dihydrate is a high-purity chelating agent widely recognized for its ability to bind and sequester di- and trivalent metal ions. This property is critical for stabilizing formulations, preventing unwanted catalytic degradation, and controlling metal ion concentrations in sensitive processes. It is an essential raw material for manufacturers in the pharmaceutical, cosmetic, personal care, and food industries, where product integrity and shelf-life are paramount.

Application

• Pharmaceutical Manufacturing: Used as a stabilizer and preservative in injectable solutions, ophthalmic preparations, and topical creams to inactivate metal ions that can catalyze oxidation.
• Cosmetics & Personal Care: Acts as a chelating agent in shampoos, lotions, and creams to enhance the efficacy of preservatives and prevent discoloration or rancidity caused by trace metals.
• Food Additive (as Disodium EDTA): Employed to retain color, flavor, and texture in canned products, dressings, and beverages by chelating metal catalysts of oxidation.
• Industrial Cleaning & Boiler Treatment: Utilized in cleaning formulations and water treatment to control scale formation by sequestering calcium and magnesium ions.
• Laboratory & Analytical Chemistry: Serves as a key component in buffer solutions and titrants for complexometric titrations, particularly for determining water hardness.
• Textile & Pulp Processing: Helps in bleaching and dyeing processes by deactivating metal ions that could interfere with chemical treatments.

Basic Information

Product Name	Disodium Edetate Dihydrate
CAS No.	6381-92-6
Molecular Formula	C10H14N2Na2O8 • 2H2O
Molecular Weight	372.24 g/mol
Synonyms	Disodium EDTA Dihydrate; Edetate Disodium Dihydrate; Disodium Ethylenediaminetetraacetate Dihydrate; (Ethylenedinitrilo)tetraacetic Acid Disodium Salt Dihydrate; Sequestrene NA2; Titriplex® III; EDTA Disodium Salt Dihydrate; Disodium Dihydrogen Ethylenediaminetetraacetate Dihydrate
EINECS	205-358-3

Quality Control

Our Disodium Edetate Dihydrate is manufactured under a strict quality management system. It is typically tested to meet relevant industry standards such as USP, EP, BP, and FCC for applicable grades. Every batch is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles to ensure compliance with your specific requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture which can lead to caking.

Specification

Item	Specification
Appearance	White, crystalline powder
Identification (IR)	Conforms
Assay (Titration)	98.0% - 102.0% (on anhydrous basis)
pH (5% Solution)	4.0 - 6.0
Water (Karl Fischer)	10.0% - 13.0%
Heavy Metals (as Pb)	≤ 20 ppm
Iron (Fe)	≤ 50 ppm
Chloride (Cl)	≤ 0.05%

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