Description

Ethylenediaminetetraacetic Acid Tetrasodium Salt Dihydrate is a highly effective, water-soluble chelating agent widely used to sequester di- and trivalent metal ions. Its primary value lies in its ability to inactivate metal ions that can catalyze degradation, cause discoloration, or reduce efficacy in various formulations and processes. This compound is essential for manufacturers and formulators in the pharmaceutical, cosmetic, food, and industrial cleaning sectors who require reliable metal ion control to ensure product stability, clarity, and performance.

Application

• Pharmaceutical Formulations: Used as a stabilizer in injectables, ophthalmics, and topical products to chelate trace metals that can catalyze oxidative degradation of active ingredients.
• Cosmetics & Personal Care: Acts as a sequestrant in shampoos, creams, and lotions to improve shelf-life and prevent rancidity or color change caused by metal ion contamination.
• Food Additive (as EDTA): Employed as a preservative and color/ flavor stabilizer in canned goods, dressings, and beverages to maintain quality.
• Industrial Cleaning & Detergents: Enhances the performance of cleaning agents by softening water through chelation of calcium and magnesium ions.
• Laboratory & Analytical Chemistry: Serves as a key component in buffer solutions, titrants, and as a masking agent in complexometric titrations and trace metal analysis.
• Textile & Pulp/Paper Processing: Used to control metal ions in dye baths and bleaching processes to improve color consistency and product quality.
• Agricultural Chemicals: Incorporated into certain agrochemical formulations to enhance stability and compatibility.
• Boiler Water Treatment: Helps prevent scale formation by sequestering hardness-causing ions in water systems.

Basic Information

Item	Details
Product Name	Ethylenediaminetetraacetic Acid Tetrasodium Salt Dihydrate
CAS No.	10378-23-1
Molecular Formula	C10H12N2Na4O8 • 2H2O
Molecular Weight	452.23 g/mol (Dihydrate)
Synonyms	EDTA Tetrasodium Salt Dihydrate; Tetrasodium EDTA Dihydrate; Edetate Sodium; (Ethylenedinitrilo)tetraacetic Acid Tetrasodium Salt Dihydrate; Na4EDTA•2H2O; Versene Tetrasodium Salt; Sequestrene NA4; N,N'-1,2-ethanediylbis[N-(carboxymethyl)glycine] tetrasodium salt dihydrate
EINECS	233-541-3 (Anhydrous basis)

Quality Control

Our Ethylenediaminetetraacetic Acid Tetrasodium Salt Dihydrate is manufactured under a strict quality management system. Production batches undergo rigorous analytical testing to ensure they meet defined specifications for purity, identity, and performance. We can supply material compliant with various pharmacopeial standards (e.g., USP, EP, BP) or tailored industrial grades. A Certificate of Analysis (COA) documenting key parameters is provided with each shipment.

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) and must be kept in its original, tightly sealed packaging to prevent absorption of atmospheric moisture, which can lead to caking and potential weight inaccuracies.

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (Titration)	98.0% - 102.0% (on anhydrous basis)
pH (1% Solution)	10.5 - 11.5
Water Content (KF)	7.0% - 9.0%
Heavy Metals (as Pb)	≤ 20 ppm
Iron (Fe)	≤ 10 ppm
Chloride (Cl)	≤ 0.05%

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