Triethanolamine
Triethanolamine (CAS: 102-71-6) is a versatile organic compound with the linear formula (HOCH2CH2)3N and a molecular weight of 149.19 g/mol. This viscous, colourless liquid functions as a weak base and a triol. It finds broad application as a pH adjuster, emulsifier, and intermediate in various industrial processes. Triethanolamine is integral to formulations in cosmetics, detergents, and metalworking fluids, owing to its excellent buffering and solubilising capabilities.
- IUPAC
- 2,2′,2′′-Nitrilotriethanol,Tris(2-hydroxyethyl)amine
- Synonyms
- 2,2′,2′′-NitrilotriethanolTris(2-hydroxyethyl)amineTEA
pH Adjuster and Emulsifier
In cosmetic and personal care products, Triethanolamine acts as a neutralising agent and emulsifier, helping to create stable formulations. It is commonly used in lotions, creams, and shampoos to achieve the desired pH and texture.
Corrosion Inhibitor
Triethanolamine is incorporated into metalworking fluids and antifreeze solutions to provide corrosion inhibition for ferrous metals. Its alkaline nature helps protect metal surfaces from degradation.
Chemical Synthesis Intermediate
As a fundamental building block, Triethanolamine serves as a precursor in the synthesis of various organic compounds. Its hydroxyl and amine functionalities allow for diverse chemical reactions.
Cement Grinding Aid
In the cement industry, Triethanolamine is utilised as a grinding aid to improve the efficiency of cement production. It helps prevent agglomeration of cement particles, leading to finer grinding.
| Molecular weight | 149.19 |
|---|---|
| Linear formula | (HOCH2CH2)3N |
| Assay | 97% |
| Boiling point | 190-193 °C/5 mmHg(lit.) |
| Density | 1.124 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.485(lit.) |
| Solubility | H2O: soluble1 M at 20 °C, clear, colorless |
| Melting point | 17.9-21 °C(lit.) |
| pH | 10.5-11.5 (25 °C, 1 M in H2O) |
| Vapour pressure | 0.01 mmHg (20 °C) |
| Vapour density | 5.14 (vs air) |
| Autoignition temp | 600 °F |
| Impurities tested | insoluble matter, passes filter test≤0.1% ethanolamine (GC)≤0.2% water≤0.3% diethanolamine (GC) |
| Flash point | 179 °C / 354.2 °F |
|---|---|
| Water hazard class (WGK, DE) | 1 |
| Anion traces | chloride (Cl-): ≤1 mg/kgsulfate (SO42-): ≤20 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.
| Uv Absorption | λ: 280 nm Amax: 0.1 |
|---|---|
| Absorption | absorption1M/270 nm, H2O cut-off |
| Useful Ph Range | 7.3 - 8.3 |
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 Triethanolamine used for?
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Triethanolamine is primarily used as a pH adjuster, emulsifier, wetting agent, and intermediate in the manufacturing of cosmetics, detergents, metalworking fluids, and cement.
What is the CAS number and formula for Triethanolamine?
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The CAS number for Triethanolamine is 102-71-6, and its linear formula is (HOCH2CH2)3N.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Triethanolamine with an assay of 97%. We do not represent this product as USP, BP, or EP grade.
What are the safety and handling considerations for Triethanolamine?
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Triethanolamine has a flash point of 179 °C (354.2 °F) and is classified with GHS hazard statements indicating potential skin and eye irritation. Appropriate personal protective equipment should be used, and it should be handled in a well-ventilated area.
How is Triethanolamine packed and shipped?
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Triethanolamine is carefully packed to ensure safe transit and is exported globally by Tech Serve Solutions.
How can I request a quote or sample of Triethanolamine?
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To request a quote or a sample of Triethanolamine, please contact our sales team through the website or by phone.
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