Nitrilotriacetic acid
Nitrilotriacetic acid (NTA), CAS 139-139-13-9, with the linear formula N(CH2COOH)3 and a molecular weight of 191.14 g/mol, is a versatile organic compound. It functions as an effective chelating agent, forming stable complexes with various metal ions. This property makes it valuable in numerous chemical and analytical applications.
- IUPAC
- N,N-Bis(carboxymethyl)glycine,NTA,Tris(carboxymethyl)amine
- Synonyms
- N,N-Bis(carboxymethyl)glycineNTATris(carboxymethyl)amine
Chelating Agent
NTA is widely recognised for its ability to sequester metal ions. This makes it useful in applications requiring the control or removal of metal contaminants, such as in water treatment or industrial cleaning processes.
Analytical Chemistry
Its strong complexing capabilities are exploited in analytical techniques, particularly in complexometry for the determination of metal ion concentrations. It serves as a reliable reagent in titration methods.
Chemical Synthesis
As an organic building block, NTA can be employed in the synthesis of more complex molecules. Its functional groups allow for various chemical modifications and reactions.
| Molecular weight | 191.14 |
|---|---|
| Linear formula | N(CH2COOH)3 |
| Assay | ≥99.0% (T)≥99.0% |
| Grade | ACS reagentfor complexometry |
| Loss on drying | ≤0.1% loss on drying |
| Application | An excellent chelating agent. |
| Melting point | 245 °C (dec.)(lit.) |
Hazard statements
- H302Harmful if swallowed
- H319Causes serious eye irritation
- H351Suspected of causing cancer
Precautionary statements
- P281Use personal protective equipment as required
- P305IF IN EYES
| Protective equipment | Eyeshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Flash point | 100 °C / 212 °F |
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-36-40 |
| Safety statements (S) | 26-36/37 |
| Cation traces | Ca: ≤10 mg/kgCd: ≤5 mg/kgCo: ≤5 mg/kgCr: ≤5 mg/kgCu: ≤5 mg/kgFe: ≤7 mg/kgK: ≤50 mg/kgMg: ≤5 mg/kgMn: ≤5 mg/kgNa: ≤500 mg/kgNi: ≤5 mg/kgPb: ≤5 mg/kgZn: ≤5 mg/kg |
| Anion traces | chloride (Cl-): ≤100 mg/kg |
| Ignition residue | ≤0.1% (as SO4) |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Nitrilotriacetic acid used for?
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Nitrilotriacetic acid (NTA) is primarily used as an excellent chelating agent for metal ions in various chemical and analytical applications, including complexometry and chemical synthesis.
What is the CAS number and chemical formula for Nitrilotriacetic acid?
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The CAS number for Nitrilotriacetic acid is 139-13-9. Its linear formula is N(CH2COOH)3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Nitrilotriacetic acid in ACS reagent grade for complexometry, with an assay of ≥99.0% (T) and ≥99.0%.
How should Nitrilotriacetic acid be handled safely?
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Nitrilotriacetic acid is harmful if swallowed (H302), causes serious eye irritation (H319), and is suspected of causing cancer (H351). Handle with appropriate personal protective equipment, including eyeshields and gloves, and ensure adequate ventilation. Refer to the safety data sheet for full details.
How is Nitrilotriacetic acid packed, shipped, and exported?
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Tech Serve Solutions, a global supplier and exporter since 1998, ensures that Nitrilotriacetic acid is appropriately packed and shipped according to international regulations.
How can I request a sample or quote for Nitrilotriacetic acid?
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To request a sample or quote for Nitrilotriacetic acid, please contact our sales team through the website or by phone.
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