Description

Nitrilotriacetic Acid CAS NO 139-13-9 is a versatile aminopolycarboxylic acid widely used as a chelating agent and detergent builder. Its primary value lies in its ability to form stable, water-soluble complexes with di- and trivalent metal ions, effectively controlling water hardness and preventing scale formation. This makes it an essential chemical for industries requiring metal ion sequestration, including cleaning product formulation, textile processing, and water treatment. Its utility extends to pulp and paper manufacturing and as a stabilizer in various chemical processes.

Application

• Detergent and Cleaning Agent Builder: Acts as a phosphate-free substitute in laundry detergents, industrial cleaners, and dishwashing formulations to sequester calcium and magnesium ions.
• Textile Processing Aid: Used in dyeing and bleaching baths to complex metal ions that can interfere with color uniformity and fabric quality.
• Water Treatment Chemical: Employed in boiler and cooling water systems to prevent scale formation by chelating hardness-causing cations.
• Pulp and Paper Industry: Serves as a chelant in peroxide bleaching processes to deactivate trace metals that catalyze peroxide decomposition.
• Chemical Synthesis Intermediate: Utilized in the production of other chelating agents, surfactants, and specialty chemicals.
• Laboratory Reagent: Used in analytical chemistry for complexometric titrations and as a buffer component.
• Personal Care Products: Found in some formulations as a stabilizer to enhance product shelf-life.

Basic Information

Product Name	Nitrilotriacetic Acid
CAS No.	139-13-9
Molecular Formula	C6H9NO6
Molecular Weight	191.14 g/mol
Synonyms	NTA; Tris(carboxymethyl)amine; Triglycine; Aminotriacetic Acid; Tri(carboxymethyl)amine; N,N-Bis(carboxymethyl)glycine; Complexon I; Titriplex I; Chel 300; Trilon A
EINECS	205-355-7

Quality Control

Our Nitrilotriacetic Acid is manufactured under a strict quality management system to ensure batch-to-batch consistency and high purity. We provide comprehensive quality assurance, with products meeting relevant industrial and technical grade specifications. A Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is available for every batch upon request, supporting your quality and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and strong bases. The product is hygroscopic (moisture-sensitive); ensure containers are sealed after use to prevent moisture absorption.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (Titration)	≥ 98.0 %
Loss on Drying	≤ 1.0 %
Residue on Ignition (Sulfated Ash)	≤ 0.1 %
Heavy Metals (as Pb)	≤ 10 ppm
Iron (Fe)	≤ 5 ppm
Chloride (Cl)	≤ 50 ppm

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