Description

Nitrilotriacetic Acid Disodium Salt is a high-purity, water-soluble chelating agent and a key intermediate in chemical synthesis. Its primary value lies in its strong ability to sequester di- and trivalent metal ions, making it essential for processes requiring precise control over metal ion activity. This product is critical for manufacturers in the detergent, textile, pulp & paper, and water treatment industries, as well as for research and analytical chemistry applications. We supply consistent, high-quality material to support your production and formulation needs.

Application

• Detergent Builder & Chelating Agent: Used in industrial and institutional cleaning formulations to inactivate water hardness ions (calcium, magnesium) and improve surfactant efficacy.
• Textile Processing: Acts as a chelant in scouring, bleaching, and dyeing baths to prevent metal-ion interference and improve color fastness and fabric quality.
• Pulp & Paper Industry: Employed in bleaching processes to stabilize peroxides and protect pulp fibers from metal-catalyzed degradation.
• Water Treatment: Functions as a scale and corrosion inhibitor in boiler and cooling water systems by complexing scale-forming cations.
• Chemical Synthesis: Serves as a versatile intermediate and metal ion buffer in the production of specialty chemicals, catalysts, and other NTA derivatives.
• Analytical Chemistry: Used to prepare standard solutions and buffers for complexometric titrations and as a masking agent in various analytical methods.
• Personal Care: Incorporated in select formulations as a stabilizer to chelate trace metals that can cause product discoloration or rancidity.

Basic Information

Product Name	Nitrilotriacetic Acid Disodium Salt
CAS No.	15467-20-6
Molecular Formula	C6H7NNa2O6
Molecular Weight	235.11 g/mol
Synonyms	NTA Disodium Salt; Disodium Nitrilotriacetate; Disodium NTA; Nitrilotriacetic Acid Disodium Salt Monohydrate; Tris(carboxymethyl)amine Disodium Salt; Disodium (Carboxymethyl)iminodiacetate; NTA-2Na; Chelaton III (Disodium Salt)
EINECS	239-479-3

Quality Control

Our Nitrilotriacetic Acid Disodium Salt is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets stringent specifications for purity, identity, and performance. Certificates of Analysis (COA) documenting key parameters such as assay, heavy metal content, and loss on drying are provided with every shipment. We are committed to supplying material that meets the high standards required for industrial and specialty chemical applications.

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 container tightly sealed when not in use to prevent absorption of atmospheric moisture, which can lead to caking or reduced flowability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (Titration)	≥ 98.0 %
pH (1% Solution)	10.5 - 11.5
Loss on Drying	≤ 1.0 %
Heavy Metals (as Pb)	≤ 20 ppm
Chloride (Cl)	≤ 0.01 %
Sulfate (SO4)	≤ 0.01 %

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