Molekula
Nitrilotriacetic acid trisodium salt
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Nitrilotriacetic acid trisodium salt (Na₃NTA) is a chelating agent widely used in detergents, water treatment, and industrial cleaning to bind metal ions and prevent scaling or precipitation. It is also employed in laboratory buffers and as a metal-ion chelator in laboratory work. This chemical has a CAS number of 5064-31-3, with the molecular formula C₆H₆NNa₃O₆ and a molecular weight of 257.08 g/mol. It is stored at ambient conditions and carries a signal word of "Warning" for safety handling. Molekula supplies Nitrilotriacetic acid trisodium salt from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White crystalline powder |
| pH | 10.5 - 11.5 (1% aq.) |
| Chloride (Cl-) | ≤ 0.02% |
| Assay | ≥ 99.0% |
| Iron (Fe) | ≤ 0.001% |
| Identification (IR) | Conforms to reference |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Base |
Identification
| Property | Value |
|---|---|
| SKU | 90029372 |
| CAS Number | 5064-31-3 |
| IUPAC Name | trisodium;2-[bis(carboxylatomethyl)amino]acetate |
| EC Number | 225-768-6 |
| Molecular Formula | C6H6NNa3O6 |
| Molecular Weight | 257.08 |
| Exact Mass | 256.9888 |
| SMILES | C(C(=O)[O-])N(CC(=O)[O-])CC(=O)[O-].[Na+].[Na+].[Na+] |
| InChIKey | DZCAZXAJPZCSCU-UHFFFAOYSA-K |
| InChI | InChI=1S/C6H9NO6.3Na/c8-4(9)1-7(2-5(10)11)3-6(12)13;;;/h1-3H2,(H,8,9)(H,10,11)(H,12,13);;;/q;3*+1/p-3 |
| PubChem CID | 21152 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29224949 |
| Tariff Code | 2922498590 |
Safety & GHS
-
Health Hazard
GHS07
-
Serious Health Hazard
GHS08
Hazard statements
- H302 Harmful if swallowed
- H319 Causes serious eye irritation
- H351 Suspected of causing cancer
Precautionary statements
- P201 Obtain special instructions before use
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, English (US), French, German, Italian, Portuguese, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- Hampshire NTA
- Masquol np 140
- NTA Trisodium salt
- Ntana3
- Sodium nitrilotriacetate
- Syntron A
- Trisodium aminotriacetate
- TRISODIUM NITRILOTRIACETATE
- Trisodium NTA
- Versene NTA 150
Frequently asked questions
What is nitrilotriacetic acid trisodium salt (Na₃NTA) commonly used for?
Na₃NTA is primarily used as a chelating agent in detergents, water treatment, and as a buffer in biochemical applications to bind metal ions like calcium and magnesium.
What is the chemical formula and molecular weight of Na₃NTA?
The chemical formula is C₆H₆NNa₃O₆, and the molecular weight is 257.08 g/mol.
How should nitrilotriacetic acid trisodium salt be stored?
Store at ambient temperature in a cool, dry place, away from incompatible substances. Keep the container tightly sealed.
What grades or purity levels of Na₃NTA does Molekula supply?
Molekula supplies technical grade and analytical/biochemical grade Na₃NTA, with purity levels specified per order.
Can Molekula supply nitrilotriacetic acid trisodium salt in bulk quantities?
Yes, we offer bulk packaging options for Na₃NTA, including drums and bulk bags, depending on customer requirements.
What documentation is provided with an order of Na₃NTA?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and batch-specific documentation for traceability.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.