Description

Ethylenediaminetetraacetic acid tetrasodium salt (EDTA-4Na) is a powerful, water-soluble chelating agent widely used to sequester di- and trivalent metal ions. This high-performance compound is essential for stabilizing formulations, preventing metal-catalyzed degradation, and improving process efficiency across numerous industries. It is a critical raw material for manufacturers in the detergent, textile, pulp & paper, agriculture, and personal care sectors seeking reliable quality and consistent supply.

Application

• Detergent & Cleaning Formulations: Acts as a water softener and builder to enhance surfactant efficiency and prevent scale formation.
• Textile Processing: Used in dyeing and bleaching baths to complex with metal ions, ensuring consistent color and fabric quality.
• Pulp & Paper Industry: Prevents metal ion interference during bleaching processes, improving brightness and pulp yield.
• Agriculture (Micronutrient Fertilizers): Chelates micronutrients like iron, zinc, and copper, enhancing their stability and bioavailability for plants.
• Personal Care & Cosmetics: Functions as a preservative booster by chelating metals that can degrade formulations, extending product shelf life.
• Industrial Water Treatment: Controls scale and inhibits corrosion in boilers and cooling water systems by sequestering calcium and magnesium ions.
• Laboratory & Analytical Chemistry: Serves as a key component in buffer solutions, titrants, and reagents for complexometric titrations.

Basic Information

Product Name	Ethylenediaminetetraacetic acid tetrasodium salt
CAS No.	13236-36-4
Molecular Formula	C10H12N2Na4O8 • xH2O
Molecular Weight	380.17 g/mol (anhydrous)
Synonyms	EDTA tetrasodium salt; Edetate sodium; Tetrasodium EDTA; Tetrasodium edetate; (Ethylenedinitrilo)tetraacetic acid tetrasodium salt; N,N'-1,2-Ethanediylbis[N-(carboxymethyl)glycine] tetrasodium salt; Sequestrene NA4; Trilon B; Versene NA4; Warkeelate NA4
EINECS	236-276-4

Quality Control

Our EDTA-4Na is produced under a stringent quality management system to ensure batch-to-batch consistency and reliability. We offer various grades, including Technical and Purified, which are controlled against rigorous in-house specifications. Key parameters such as assay, pH, and heavy metal content are verified. A Certificate of Analysis (COA) documenting purity and compliance is provided with every shipment.

Storage

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

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (Titration)	≥ 98.0 %
pH (5% Solution)	10.5 - 11.5
Water Content (KF)	≤ 5.0 %
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.