Triethylenetetramine hydrate
Triethylenetetramine hydrate (CAS: 305808-21-3) is a polyamine compound with the linear formula NH ₂CH ₂CH ₂( NHCH ₂CH ₂)₂NH ₂ · xH ₂O. With a molecular weight of 146.23 (anhydrous basis), this chemical is primarily utilised as a building block in chemical synthesis. Its properties make it suitable for applications such as developing cellulose collectors for multielement preconcentration.

Chemical Synthesis
Triethylenetetramine hydrate serves as a valuable intermediate and building block in organic synthesis. Its polyamine structure allows for diverse reactions and the construction of complex molecules.
Material Science
This compound has been employed in the development of specialised materials, such as cellulose collectors with immobilised chelating groups for elemental preconcentration in analytical flow systems.
Research and Development
As a nitrogen-containing organic compound, it is utilised in various research settings exploring new synthetic pathways and material properties.
| Molecular weight | 146.23 (anhydrous basis) |
|---|---|
| Linear formula | NH2CH2CH2(NHCH2CH2)2NH2 · xH2O |
| Assay | 98% |
| Boiling point | 272 °C(lit.) |
| Vapour pressure | <0.01 mmHg (20 °C) |
| Vapour density | ~5 (vs air) |
| Storage temperature | −20°C |
| Melting point | 45-48 °C(lit.) |
| Application | Triethylenetetramine hydrate has been used as solvent to develop cellulose collector with immobilized triethylenetetraminepentaacetic acid groups for multielement preconcentration in flow system1. |


Hazard statements
- H312Harmful in contact with skin
- H314Causes severe skin burns and eye damage
- H317May cause an allergic skin reaction
- H412Harmful to aquatic life with long-lasting effects
Precautionary statements
- P273Avoid release to the environment
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Protective equipment | Eyeshields, Faceshields, 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 | 113 °C / 235.4 °F |
| Transport (UN / ADR) | UN 2259 8 / PGII |
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | C |
| Risk statements (R) | 21-34-43-52/53 |
| Safety statements (S) | 26-36/37/39-45-61 |
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 Triethylenetetramine hydrate used for?
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Triethylenetetramine hydrate is used as a building block in chemical synthesis and has been applied in developing cellulose collectors for multielement preconcentration in flow systems.
What is the CAS number and formula for Triethylenetetramine hydrate?
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The CAS number for Triethylenetetramine hydrate is 305808-21-3. Its linear formula is NH₂CH₂CH₂(NHCH₂CH₂)₂NH₂ · xH₂O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Triethylenetetramine hydrate with an assay of 98%. This is a technical/research grade; TSS does not represent it as USP, BP, or EP grade.
How should Triethylenetetramine hydrate be handled safely?
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Triethylenetetramine hydrate is classified as corrosive and harmful. It requires careful handling with appropriate personal protective equipment, including eyeshields, gloves, and respiratory protection, to avoid skin and eye contact and inhalation.
Is Triethylenetetramine hydrate dangerous?
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Yes, Triethylenetetramine hydrate is classified with GHS05 and GHS07 symbols, indicating it is corrosive and harmful. It carries hazard statements H312 (Harmful in contact with skin), H314 (Causes severe skin burns and eye damage), H317 (May cause an allergic skin reaction), and H412 (Harmful to aquatic life with long lasting effects).
How is Triethylenetetramine hydrate packed, shipped, and exported?
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Triethylenetetramine hydrate is packed in compliance with international regulations for hazardous materials, including UN 2259, Class 8, PG II. TSS exports globally, adhering to all relevant shipping and customs requirements.
How can I request a sample or quote for Triethylenetetramine hydrate?
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To request a sample or a quote for Triethylenetetramine hydrate, please contact the TSS sales team via our website or direct email, providing your specific requirements and shipping details.
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