Description

(Ethylenedinitrilo)Tetraacetic Acid, Trisodium Salt Hydrate is a highly effective chelating agent widely used to sequester di- and trivalent metal ions in aqueous solutions. This compound is critical for processes requiring precise control of metal ion activity, preventing unwanted precipitation and catalytic interference. It is an essential raw material for manufacturers in the pharmaceutical, personal care, industrial cleaning, and water treatment sectors.

Application

• Pharmaceutical Manufacturing: Used as a stabilizing agent in formulations to chelate trace metals that can catalyze drug degradation, and as a component in certain buffer systems.
• Personal Care & Cosmetics: Acts as a chelator in shampoos, soaps, and lotions to improve product stability and shelf life by binding water hardness ions.
• Industrial Cleaning & Descaling: A key ingredient in industrial and institutional cleaning formulations for removing limescale and rust deposits from metal surfaces and equipment.
• Water Treatment: Employed to control water hardness and inhibit scale formation in boilers, cooling towers, and reverse osmosis systems.
• Textile Processing: Used in dyeing and finishing processes to complex with metal ions in water, ensuring consistent color quality and preventing fabric damage.
• Laboratory & Analytical Chemistry: Serves as a standard reagent for complexometric titrations and in buffer solutions for various biochemical assays.
• Pulp & Paper Industry: Helps in bleaching processes by chelating transition metals that can decompose bleaching agents, improving efficiency and pulp quality.
• Agriculture: Used in some micronutrient fertilizer formulations and as a chelating agent in agricultural research.

Basic Information

Product Name	(Ethylenedinitrilo)Tetraacetic Acid, Trisodium Salt Hydrate
CAS No.	10378-22-0
Molecular Formula	C10H13N2Na3O8·xH2O
Molecular Weight	380.17 g/mol (anhydrous basis)
Synonyms	Trisodium EDTA Dihydrate; EDTA Trisodium Salt; Edetate Trisodium; Triplex III; Titriplex III; Sequestrene NA3; N,N'-1,2-ethanediylbis[N-(carboxymethyl)glycine] trisodium salt; Ethylenediaminetetraacetic acid trisodium salt hydrate
EINECS	Contact for details

Quality Control

Our (Ethylenedinitrilo)Tetraacetic Acid, Trisodium Salt Hydrate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets high-purity standards suitable for industrial and technical applications. A comprehensive Certificate of Analysis (COA) detailing assay, purity, and physical parameters is provided with every shipment to guarantee consistency and traceability.

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). Due to its hygroscopic nature, the container must be kept tightly sealed after initial use to prevent moisture absorption and caking.

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (Titration)	98.0% min.
pH (5% solution)	4.0 - 5.5
Loss on Drying	5.0 - 8.0%
Heavy Metals (as Pb)	20 ppm max.
Iron (Fe)	10 ppm max.

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