Trisodium EDTA
What is Trisodium EDTA?
Trisodium EDTA (CAS 150-38-9) is a water-soluble chelating agent that binds and neutralizes metal ions in aqueous systems. It is the trisodium salt form of EDTA, offering a moderately alkaline pH profile.
Where is Trisodium EDTA used?
- Personal care and cosmetics: sequesters calcium and magnesium ions in hard water, protecting preservative systems and maintaining product clarity
- Pharmaceuticals: stabilizes liquid preparations by deactivating trace metals
- Water treatment: controls scale formation and metal ion interference in process water
- Textile and paper processing: prevents metal-catalyzed discoloration during bleaching
- It improves batch consistency and end-product quality in industrial dyeing operations.
Good to know: Suits applications where the tetrasodium form would be too basic for the specific chemical environment. It prevents metals from catalyzing oxidative degradation, ensuring the longevity of the final product.
Commercial specifications
- White crystalline powder or aqueous solution at 40–50% concentrations
- Bulk quantities standard for industrial buyers; smaller packaging for laboratory and specialty formulation requirements
Other Names (Synonyms)
trisodium salt of ethylenediaminetetraacetic acid|trisodium ethylenediaminetetraacetate|N,N'-1,2-ethanediylbis[N-(carboxymethyl)glycine] trisodium salt|ethylenediaminetetraacetic acid trisodium salt|EDTA trisodium|(ethylenedinitrilo)tetraacetic acid trisodium salt|Edetate trisodium|EDTA trisodium salt