Description

N,N'-(1,2-Ethanediyl)Bisaspartic Acid Tetrasodium Salt is a high-purity, water-soluble chelating agent and sequestrant derived from aspartic acid. This compound is valued for its strong binding affinity for di- and trivalent metal ions, such as calcium and iron, making it a key component in formulations requiring effective scale inhibition and metal ion control. It is primarily utilized by manufacturers in the detergent, water treatment, personal care, and industrial cleaning sectors seeking biodegradable and high-performance alternatives to traditional phosphonates.

Application

• Detergent & Cleaning Formulations: Acts as a powerful builder and sequestrant to inactivate water hardness ions, enhancing surfactant performance and preventing scale deposition.
• Industrial Water Treatment: Used as a scale and corrosion inhibitor in cooling water, boiler water, and reverse osmosis systems.
• Personal Care Products: Serves as a chelating agent in shampoos, liquid soaps, and creams to stabilize formulations by binding trace metals that can cause rancidity or discoloration.
• Textile & Pulp Processing: Assists in bleaching and dyeing processes by sequestering metal ions that could catalyze fiber degradation or affect color consistency.
• Agricultural Formulations: Enhances the stability and efficacy of micronutrient fertilizers and agrochemicals by chelating metal ions.
• Oilfield Chemicals: Employed in scale squeeze treatments and as a component in drilling fluids to control carbonate and sulfate scale.

Basic Information

Product Name	N,N'-(1,2-Ethanediyl)Bisaspartic Acid Tetrasodium Salt
CAS No.	67103-03-1
Molecular Formula	C10H12N2Na4O8
Molecular Weight	380.17 g/mol
Synonyms	Ethylenediamine-N,N'-disuccinic acid tetrasodium salt; EDDS tetrasodium salt; Tetrasodium ethylenediaminedisuccinate; (S,S)-EDDS-Na4; Tetrasodium 2,2'-(1,2-ethanediylbis[(carboxymethyl)imino])bisbutanedioate; Chelest EDDS-4Na; L,L-EDDS tetrasodium salt
EINECS	266-548-2

Quality Control

Our N,N'-(1,2-Ethanediyl)Bisaspartic Acid Tetrasodium Salt is manufactured under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure compliance with established specifications for purity, identity, and performance. A comprehensive Certificate of Analysis (COA) documenting assay, heavy metal content, and other critical parameters is provided with every shipment to guarantee traceability and consistency for our global B2B clients.

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 material is hygroscopic (moisture-sensitive); keep the original container tightly sealed to prevent absorption of atmospheric moisture which may lead to caking or reduced flowability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
pH (1% Solution)	10.0 - 11.5
Water Content	≤ 5.0%
Heavy Metals (as Pb)	≤ 10 ppm
Iron (Fe)	≤ 5 ppm

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