Trisodium nitrilotriacetate

Trisodium nitrilotriacetate (CAS 5064-31-3), also called trisodium NTA or NTA, is the trisodium salt of nitrilotriacetic acid; a chelating and sequestering agent.

Where is Trisodium nitrilotriacetate used?

• Textile and leather processing: controls metal ion interference during dyeing and finishing, improving colour consistency and reducing chemical waste
• Water treatment: sequesters hardness ions and heavy metals, keeping process water and cooling systems free of scale
• Detergent and cleaning formulations: phosphate-replacing builder that maintains wash performance in hard water
• Personal care: stabilises active ingredients against metal-catalysed degradation
• It binds calcium, magnesium, iron and other metal ions in solution.

Good to know: Buyers should confirm moisture content and metal impurity specifications when sourcing for sensitive applications.

Commercial specifications

• Purity typically 98–99% on a dry basis