Nitrilotriacetic acid
What is Nitrilotriacetic acid?
Nitrilotriacetic acid (CAS 139-13-9), commonly abbreviated as NTA, is a chelating agent that binds and sequesters metal ions in aqueous systems. Also known as triglycollamic acid and aminotriacetic acid.
Where is Nitrilotriacetic acid used?
- Water treatment: prevents scale formation and controls heavy metal precipitation in industrial cooling and process water systems
- Textile and paper: deactivates trace metals that interfere with bleaching, dyeing, and pulp processing
- Leather processing: supports metal removal during preparatory stages
- Personal care: sequestrant that stabilizes formulations against metal-induced degradation
- It functions as a cost-effective alternative to EDTA across industrial processes where metal ion control is critical.
Good to know: Not to be confused with EDTA; NTA is a cost-effective alternative. Purity levels are typically confirmed by titration or HPLC methods to meet industrial application requirements.
Commercial specifications
- Purity levels are typically confirmed by titration or HPLC methods to meet industrial application requirements.
Other Names (Synonyms)
Triglycollamic acid|N,N-Bis(carboxymethyl)glycine|Aminotriacetic acid|2-[bis(carboxymethyl)amino]acetic acid|Trilon A|Versene NTA acid|Hampshire NTA acid|Komplexon I|NTA