Description

[(1,2-Dimethylethylene)Dinitrilo]Tetraacetic Acid is a specialized chelating agent and complexometric titrant, structurally related to EDTA. This compound is valued for its high selectivity and strong binding affinity for specific metal ions, making it a critical reagent in analytical chemistry and industrial processes. It is primarily needed by manufacturers and laboratories in the chemical synthesis, water treatment, and analytical reagent sectors for precise metal ion control and analysis.

Application

• Analytical Chemistry: As a primary standard and complexometric titrant for the precise determination of metal ion concentrations.
• Industrial Water Treatment: For controlling scale formation and sequestering problematic metal ions in boiler and cooling water systems.
• Chemical Synthesis & Catalysis: As a ligand to stabilize metal catalysts or to control metal ion availability in organic reactions.
• Laboratory Reagent: Used in buffer solutions and as a metal chelator in various biochemical and pharmaceutical research applications.
• Pulp & Paper Industry: To chelate metal ions that can catalyze the decomposition of bleaching agents like hydrogen peroxide.
• Cleaning Formulations: Incorporated into industrial and institutional cleaners to prevent metal-ion-induced discoloration and improve surfactant efficacy.

Basic Information

Product Name	[(1,2-Dimethylethylene)Dinitrilo]Tetraacetic Acid
CAS No.	2458-58-4
Molecular Formula	C10H16N2O8
Molecular Weight	292.24 g/mol
Synonyms	1,2-Bis(2-aminoethoxy)ethane-N,N,N',N'-tetraacetic acid; EGTA; Ethylene glycol-bis(2-aminoethyl ether)-N,N,N',N'-tetraacetic acid; Ethylene glycol tetraacetic acid; Egtazic acid; Geigy 138; Glycol ether diamine tetraacetic acid; 3,6-Dioxaoctamethylenedinitrilotetraacetic acid
EINECS	219-527-8

Quality Control

Our [(1,2-Dimethylethylene)Dinitrilo]Tetraacetic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets high-purity standards suitable for analytical and industrial applications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and consistency.

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); ensure the container is kept tightly sealed after each use to prevent absorption of atmospheric moisture, which can affect purity and performance.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (Titration)	≥ 98.0 %
Loss on Drying	≤ 0.5 %
Residue on Ignition (Sulfated Ash)	≤ 0.1 %
Heavy Metals (as Pb)	≤ 10 ppm
Iron (Fe)	≤ 5 ppm
Calcium (Ca) Complexometric Titration	Conforms

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