Nitrilotriacetic acid trisodium salt monohydrate
Nitrilotriacetic acid trisodium salt monohydrate (CAS 18662-53-8) is an organic compound with the linear formula N(CH2COONa)3 · H2O and a molecular weight of 275.10. This chemical functions as a chelating agent and is utilised in various chemical synthesis and industrial applications. Tech Serve Solutions supplies this compound at a purity of ≥99% for research and development purposes.
- IUPAC
- Sodium nitrilotriacetate tribasic monohydrate
- Synonyms
- Sodium nitrilotriacetate tribasic monohydrate

Chelating Agent
Nitrilotriacetic acid trisodium salt monohydrate acts as a strong chelating agent, capable of forming stable complexes with various metal ions. This property makes it useful in applications requiring metal ion sequestration.
Chemical Synthesis
This compound serves as a building block or reagent in organic synthesis. Its functional groups allow for its incorporation into more complex molecular structures.
Industrial Processes
Due to its chelating capabilities, it finds use in industrial processes where controlling metal ion concentration is critical, such as in cleaning formulations or water treatment.
| Molecular weight | 275.10 |
|---|---|
| Linear formula | N(CH2COONa)3 · H2O |
| Assay | ≥99% |
| Melting point | >300 °C(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 |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 40 |
| Safety statements (S) | 36/37 |
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 trisodium salt monohydrate used for?
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Nitrilotriacetic acid trisodium salt monohydrate is primarily used as a chelating agent in various chemical synthesis and industrial applications where the control of metal ions is necessary.
What are the CAS number and formula for this compound?
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The CAS number is 18662-53-8, and its linear formula is N(CH2COONa)3 · H2O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Nitrilotriacetic acid trisodium salt monohydrate with an assay of ≥99%. TSS does not represent this product as USP, BP, EP, or other pharmacopoeial grades.
What are the safety and handling precautions for this chemical?
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This compound is harmful if swallowed (H302) and causes serious eye irritation (H319). It is also suspected of causing cancer (H351). Appropriate personal protective equipment, including eyeshields, gloves, and respiratory protection (type N100 or P3), should be used. Handle with caution in a well-ventilated area.
How is this chemical packed, shipped, and exported?
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Tech Serve Solutions carefully packs and ships chemicals globally, adhering to all relevant regulations for safe transport. Specific packaging details are available upon request.
How can I request a quote or sample?
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To request a quote or a sample of Nitrilotriacetic acid trisodium salt monohydrate, please contact our sales department via the website or by phone.
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