TRISODIUMETHYLENEDIAMINEDISUCCINATE EDDS Chelating agent

EDDS is a green and biodegradable organic chelating agent. Its molecular structure contains multiple carboxyl ,  can form stable water-soluble complexes with various metal ions such as copper, iron, zinc, nickel, etc.

The core feature of EDDS is its environmental friendliness. Unlike traditional chelating agents such as EDTA, which are difficult to degrade naturally, EDDS can be rapidly decomposed by microorganisms, avoiding long-term accumulation in the environment and potential ecological risks. This advantage makes it an important alternative to EDTA.

Product name: EDDS

CAS number: 20846-91-7

Molecular formula: C10H16N2O8

Molecular weight: 292.24

Purity: >98%

Package size: 25kg per drum

EDDS is a green and biodegradable chelating agent, and its core mechanism of action is chelation. Its molecular structure contains multiple carboxyl , which can act as multidentate ligands to form stable, water-soluble cyclic complexes (chelates) with metal ions (such as Cu ² ⁺, Ni ² ⁺, Zn ² ⁺, Pb ² ⁺, etc.) in solution.

EDDS has no natural direct source and is an artificially synthesized green chelating agent. The mainstream production methods include chemical synthesis and biological synthesis. Our ethylenediamine disuccinic acid is synthesized by enzymatic method. The following is our production process diagram

Applications of (EDDS)

(1) Glass and Ceramic Materials

Application: Serves as a base material and thickener for surface coatings to optimize fluidity and adhesion. It is used to fabricate porous structures and improve the thermal stability, chemical stability and service life of materials.

(2) Cleaning Agents

Mechanism: Complexes metal ions to reduce their activity, effectively removing limescale and stains.

Application: Suitable for various environments and water qualities; widely used in household and industrial cleaning products.

(3) Leather Processing

Mechanism: Forms soluble complexes with metal ions to eliminate contaminants and stabilize pH value.

Application: Improves leather cleanliness, inhibits microbial growth, and enhances the quality and durability of finished products.

(4) Coating Additives

Mechanism: Chelates metal ions to inhibit catalytic aging, while dispersing pigments to enhance stability.

Application: Boosts coating durability and color uniformity, meeting the requirements of eco‑friendly markets.

(5) Resin Curing Agent

Mechanism: Forms strong chemical bonds with epoxy resins to improve mechanical properties.

Application: Used as a high‑efficiency curing agent; its performance is affected by dosage, temperature and pH value.

(6) Catalyst for Polymer Synthesis

Mechanism: Forms controllable catalysts by coordinating with metal ions to regulate polymerization processes.

Application: Enables precise control of polymer molecular weight, improves catalytic efficiency, and supports green synthesis.

(7) Rubber Plasticizer

Mechanism: Reduces intermolecular forces between polymer chains to enhance plasticity and aging resistance.

Application: Improves the processability, flexibility and durability of rubber products.

(8) Electroplating Processes

Mechanism: Forms stable metal complexes to suppress ineffective precipitation and stabilize plating bath pH.

Application: Improves electroplating efficiency and quality, supporting green and circular production.

(9) Electroless Nickel‑Aluminum Alloy Plating

Mechanism: Chelates metal ions such as nickel and aluminum to control deposition rate and ensure uniform and compact coatings.

Application: Used for high‑performance surface coating treatment of aerospace and automotive components to enhance corrosion resistance and hardness.

(10) Petrochemical Industry

Application: Acts as a high‑efficiency catalyst to promote reactions with good selectivity and stability; performance can be further optimized by adjusting process conditions.

(11) Agriculture

Application: Used in water‑soluble fertilizers to prevent metal ion precipitation and improve nutrient utilization efficiency, as well as to regulate soil pH.

Foliar Fertilizer Application: Functions as a trace‑element chelating agent to boost foliar absorption, raise fertilizer utilization rate and enhance crop stress resistance.

(12) Oilfield Development

Application: Used as a corrosion inhibitor to reduce equipment corrosion and scaling, improve extraction efficiency, and features favorable environmental compatibility.

(13) Pharmaceutical Field

Mechanism: Chelates calcium ions and other metal ions to interfere with blood coagulation or stabilize drug structures.

Application: Used as an anticoagulant and metal antidote, and improves drug solubility and absorption.

(14) Disinfectants

Mechanism: Stabilizes active ingredients by chelating metal ions, enhances bactericidal effects and reduces corrosion to object surfaces.

Application: Applied in disinfectants for medical and food‑processing industries to improve stability and working efficiency.

(15) Cosmetics

Mechanism: Chelates metal ions in water to prevent oxidative deterioration of ingredients and maintain product stability and activity.

Application: Added to skincare products such as lotions and serums to extend shelf life and improve safety.

(16) Metal Corrosion Inhibitors

Mechanism: Forms protective films to block electrochemical corrosion and suppress metal ion leaching.

Application: Provides active protection for metal materials under various environmental conditions.

(17) Water Treatment

Application: Used for heavy‑metal ion removal and water quality regulation; also applied in metal‑chelation therapy and analytical testing in medical fields.

(18) Textile Dyeing and Finishing

Application: Acts as a chelating agent to stabilize metal ions and improve dyeing effects; used for stain removal, whitening and post‑treatment to enhance fiber performance.

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