Triethanolamine (TEA)
Triethanolamine, often abbreviated as TEA, is a viscous organic compound that is both a tertiary amine and a triol. A triol is a molecule with three alcohol groups. Triethanolamine is a strong base. Triethanolamine can also be abbreviated as TEOA, which can help to distinguish it from triethylamine. Approximately 150,000 tonnes were produced in 1999. It is a colourless compound although samples may appear yellow because of impurities.
| Parameter | Value |
|---|---|
CAS Number |
102-71-6 |
Chemical formula |
C6H15NO3 |
Molar mass |
149.19 g·mol−1 |
Appearance |
Colourless liquid |
Odor |
Ammoniacal |
Density |
1.124 g mL−1 |
Melting point |
21.60 °C; 70.88 °F; 294.75 K |
Boiling point |
335.40 °C; 635.72 °F; 608.55 K |
Solubility in water |
149 g L−1 (at 20 °C) |
log P |
−0.988 |
Vapor pressure |
1 Pa (at 20 °C) |
Acidity (pKa) |
7.74 |
UV-vis (λmax) |
280 nm |
Refractive index (nD) |
1.485 |
