Overview
Triethanolamine (CAS 102-71-6 ), commonly abbreviated as TEA, is an amino alcohol used across industrial and personal care manufacturing as a pH adjuster, emulsifier, and neutralizing agent.
Its dual amine-alcohol functionality makes it effective at stabilizing formulations and activating crosslinking reactions in coating systems. In coatings and adhesives, TEA acts as a curing accelerator.
It serves as a crosslinker in epoxy and polyurethane systems, improving adhesion and film integrity. Personal care manufacturers use it to neutralize carbomer and acrylate polymers for stable gels.
It is frequently used in lotions, sunscreens, and hair products. Pharmaceutical formulators rely on TEA to adjust pH in topical preparations, ensuring API stability and skin compatibility in ointments.
In metalworking and industrial cleaning fluids, it functions as a corrosion inhibitor and emulsifying agent, extending fluid service life. This versatility makes it a staple in chemical manufacturing.
Triethanolamine is supplied as a clear, viscous liquid, typically in concentrations of 85% and 99%. Standard commercial grades include technical, USP , and BP quality standards.
Food-contact and cosmetic-grade material is available for regulated applications. Bulk supply is available in drums and IBC totes, with tank truck quantities offered for high-volume industrial buyers.
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Physical Properties
| Melting Point | 20.5 °C |
| Boiling Point | 335.4 °C |
| Density | 1.0985 g/cm³ @ Temp: 60 °C |
| Flash Point | 365 °F |
| Appearance | Ethanolamines can be detected by odor as low as 23 ppm. Monoethanolamine is a colorless, viscous liquid or solid (below 111C) with an unpleasant, ammonialike odor |
| Color | Clear colorless to slightly yellow |
| Odor | Mild ammoniacal. |
| Form | Oily Liquid |
| Water Solubility | soluble |
| Vapor Pressure | 0.01 mm Hg ( 20 °C) |
| Refractive Index | n 20/D 1.485(lit.) |
| pH | 10.5-11.5 (25℃, 1M in H2O) |
| Log P | -2.3 at 25℃ |
Safety & Handling
Warning GHS07 Hazard Statements H315 Causes skin irritation H317 May cause an allergic skin reaction H319 Causes serious eye irritation H335 May cause respiratory irritation Precautionary Statements P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P264 Wash … thoroughly after handling. P271 Use only outdoors or in a well-ventilated area. P272 Contaminated work clothing should not be allowed out of the workplace. P280 Wear protective gloves/protective clothing/eye protection/face protection. P319 Get medical advice/attention if you feel unwell. P321 Specific treatment (see … on this label). P405 Store locked up. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P302+P352 IF ON SKIN: Wash with plenty of water. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P332+P317 Get emergency medical help. P333+P317 Get emergency medical help. P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help. P362+P364 Take off contaminated clothing and wash it before reuse. P403+P233 Store in a well-ventilated place. Keep container tightly closed. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Trade & Regulatory
| HS Code | 29221310 |
| Storage Class | 10 - Combustible liquids |
| WGK (Germany) | 1 |
Other Names
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Chemical Properties
- CAS Number
- 102-71-6
- EC Number
- 203-049-8
- Mol. Weight
- 149.19
- HS Code
- 29221310
- Category
- Alcohols & Glycols