Trisodium nitrilotriacetate

CAS: 5064-31-3

Overview

Trisodium nitrilotriacetate (CAS 5064-31-3 ), commonly referenced as trisodium NTA or simply NTA, is the trisodium salt form of nitrilotriacetic acid used industrially as a chelating and sequestering agent.

It binds calcium, magnesium, iron, and other metal ions in solution, preventing them from interfering with cleaning, dyeing, or treatment processes. In textile and leather processing, NTA controls metal ion interference.

This control occurs during dyeing and finishing, improving color consistency and reducing chemical waste. Water treatment operations use it to sequester hardness ions and heavy metals, keeping process water and cooling systems free of scale.

In detergent and cleaning formulations, it replaces phosphates as a builder, maintaining wash performance in hard water conditions. Personal care manufacturers incorporate it into formulations to stabilize active ingredients.

This stabilization prevents metal-catalyzed degradation that would otherwise shorten product shelf life. Trisodium nitrilotriacetate is supplied as a white crystalline powder or granule for industrial use.

Technical grade is the standard commercial form, with purity levels typically at 98–99% on a dry basis. Buyers should confirm moisture content and metal impurity specifications when sourcing for sensitive applications.

Physical Properties

Density	1.77[at 20℃]
Color	White to off-white
Form	Solid
Water Solubility	457g/L at 20℃
Log P	-13.2

Safety & Handling

Warning GHS07 GHS08 GHS05 Hazard Statements H290 May be corrosive to metals H302 Harmful if swallowed H319 Causes serious eye irritation H351 Suspected of causing cancer H371 May cause damage to organs H373 May causes damage to organs through prolonged or repeated exposure H402 Harmful to aquatic life Precautionary Statements P203 Obtain, consult and follow expert instructions for use. P234 Keep only in original packaging. P260 Do not breathe dust/fume/gas/mist/vapours/spray. P264 Wash … thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P318 IF exposed or concerned, get medical advice. P319 Get medical advice/attention if you feel unwell. P330 Rinse mouth. P390 Absorb spillage to prevent material damage. P405 Store locked up. P406 Store in a corrosion-resistant/… container with a resistant inner liner. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P301+P317 Get emergency medical help. P308+P316 Get emergency medical help immediately. P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

Storage Class	13 - Non Combustible Solids
WGK (Germany)	2

Other Names

Industries

Textile, Leather & Paper Personal Care & Cosmetics Water Treatment