Description

Trisodium Nitrilotrimethanesulphonate is the trisodium salt of nitrilotrimethanesulfonic acid, a highly effective and versatile chelating agent. Its primary value lies in its exceptional ability to sequester and deactivate di- and trivalent metal ions, such as calcium and magnesium, even under challenging alkaline conditions. This makes it a critical component for industries requiring superior scale inhibition and metal ion control, including industrial cleaning, textile processing, and water treatment formulations.

Application

• Industrial & Institutional (I&I) Cleaning: A key builder and sequestrant in heavy-duty alkaline cleaners, degreasers, and bottle washing formulations to prevent scale and improve surfactant efficacy.
• Textile Processing: Used in scouring, bleaching, and dyeing baths to chelate metal ions that can cause fabric damage, uneven dyeing, and peroxide decomposition.
• Pulp & Paper Industry: Employed in bleaching processes to stabilize peroxides and protect pulp quality by controlling transition metal ions.
• Water Treatment: Acts as a scale inhibitor and dispersant in cooling water systems, boiler water, and reverse osmosis applications.
• Personal Care & Cosmetics: Functions as a chelating agent in shampoos, soaps, and other formulations to enhance stability and shelf life.
• Metal Surface Treatment: Used in electroplating and metal cleaning solutions to complex interfering metal ions and ensure process consistency.

Basic Information

Product Name	Trisodium Nitrilotrimethanesulphonate
CAS No.	28138-78-5
Molecular Formula	C3H6NNa3O9S3
Molecular Weight	433.23 g/mol
Synonyms	Trisodium Nitrilotris(methanesulfonate); N,N-Bis(2-sulfoethyl)glycine trisodium salt; NTMS Trisodium Salt; Nitrilotri(methylenesulfonic acid) trisodium salt; Trisodium amino tris(methylenesulfonate); 2,2',2''-Nitrilotris(ethanesulfonic acid) trisodium salt; Trisodium N,N-Bis(carboxymethyl)glycine sulfonate; Chelon 100 (trade name variant)
EINECS	248-875-5

Quality Control

Our Trisodium Nitrilotrimethanesulphonate is manufactured under a stringent quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and performance. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical parameters is provided with each shipment to guarantee consistency and support your quality assurance protocols.

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); the original container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can lead to caking or reduced efficacy.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (Titration)	≥ 98.0 %
pH (5% Solution)	9.0 - 11.0
Water Content	≤ 2.0 %
Chloride (as Cl)	≤ 0.1 %
Sulfate (as SO4)	≤ 0.5 %
Heavy Metals (as Pb)	≤ 10 ppm

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