Description

Tetrasodium Ethane-1,1,2,2-Tetracarboxylate is the tetrasodium salt of ethylenediaminetetraacetic acid (EDTA), functioning as a powerful, water-soluble chelating agent. Its primary value lies in its exceptional ability to sequester di- and trivalent metal ions, thereby preventing unwanted precipitation and catalytic activity in complex systems. This compound is essential for manufacturers in industries such as detergents, personal care, textiles, and water treatment, where controlling metal ion interference is critical for product stability and performance.

Application

• Detergent & Cleaning Formulations: Acts as a builder and chelating agent to soften water by sequestering calcium and magnesium ions, enhancing surfactant efficiency and preventing scale deposition.
• Personal Care & Cosmetics: Used as a stabilizer and preservative booster in shampoos, lotions, and creams to chelate metal ions that can catalyze oxidation and degrade product quality.
• Textile Processing: Employed in dyeing and bleaching baths to complex with metal ions, ensuring consistent color development and preventing fabric damage.
• Industrial & Institutional Cleaners: Key component in metal cleaning, dairy, and food processing sanitizers to control water hardness and improve cleaning efficacy.
• Water Treatment: Functions as a scale and corrosion inhibitor in boiler and cooling water systems by binding scale-forming cations.
• Pulp & Paper Industry: Used to chelate metal ions during bleaching processes, protecting pulp fibers and improving brightness.
• Agriculture: Can be used in micronutrient fertilizers and agrochemical formulations to improve the bioavailability of essential metal ions.
• Laboratory & Analytical Reagent: Serves as a standard chelating agent in complexometric titrations and buffer solutions.

Basic Information

Product Name	Tetrasodium Ethane-1,1,2,2-Tetracarboxylate
CAS No.	36499-56-6
Molecular Formula	C10H12N2Na4O8 • xH2O
Molecular Weight	380.17 (Anhydrous)
Synonyms	Tetrasodium EDTA; Edetate Sodium; Tetrasodium Edetate; Tetrasodium Ethylenediaminetetraacetate; (Ethylenedinitrilo)tetraacetic Acid Tetrasodium Salt; EDTA Tetrasodium Salt; Na4EDTA; Sequestrene NA4; Trilon B; Versene 100
EINECS	253-067-5

Quality Control

Our Tetrasodium EDTA is manufactured under a stringent quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and performance. Certificates of Analysis (COA) documenting key parameters such as assay, heavy metal content, and loss on drying are available upon request. We can supply grades suitable for various applications, including industrial, cosmetic, and reagent uses.

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). Keep the container tightly sealed when not in use 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% min. (on anhydrous basis)
pH (1% Solution)	10.5 - 11.5
Loss on Drying	Contact for details
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.