Back Trietanolamin Azerbaijani تری‌اتانول‌آمین AZB Triethanolamin German Trietanolamino Esperanto Trietanolamina Spanish Trietanolamina Basque تری‌اتانول‌آمین Persian Trietanoliamiini Finnish Triéthanolamine French Trietanolamin ID

Triethanolamine

Not to be confused with Triethylamine.
Triethanolamine
Skeletal formula of triethanolamine
Ball-and-stick model of the triethanolamine molecule
Colorless liquid in a stoppered glass bottle
Names
Preferred IUPAC name
2,2′,2′′-Nitrilotri(ethan-1-ol)[1]
Other names
  • 2,2′,2′′-Nitrilotriethanol
  • Tris(2-hydroxyethyl)amine
  • Triethylolamine
  • 2,2′,2′′-Trihydroxytriethylamine
  • Trolamine
  • TEA
  • TELA
  • TEOA
Identifiers
3D model (JSmol)
3DMet
1699263
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.002.773 Edit this at Wikidata
EC Number
  • 203-049-8
KEGG
MeSH Biafine
RTECS number
  • KL9275000
UNII
  • InChI=1S/C6H15NO3/c8-4-1-7(2-5-9)3-6-10/h8-10H,1-6H2 checkY
    Key: GSEJCLTVZPLZKY-UHFFFAOYSA-N checkY
  • OCCN(CCO)CCO
Properties
N(CH2CH2OH)3
Molar mass 149.190 g·mol−1
Appearance Colourless, viscous liquid
Odor Ammoniacal
Density 1.124 g/mL
Melting point 21.60 °C; 70.88 °F; 294.75 K
Boiling point 335.40 °C; 635.72 °F; 608.55 K
miscible
log P −0.988
Vapor pressure 1 Pa (at 20 °C)
Acidity (pKa) 7.74[2]
UV-vis (λmax) 280 nm
1.485
Thermochemistry
389 J K−1 mol−1
−665.7 – −662.7 kJ mol−1
−3.8421 – −3.8391 MJ mol−1
Pharmacology
D03AX12 (WHO)
Hazards
GHS labelling:
GHS07: Exclamation mark
Warning
H319
P305+P351+P338
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroformFlammability 1: Must be pre-heated before ignition can occur. Flash point over 93 °C (200 °F). E.g. canola oilInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
2
1
0
Flash point 179 °C (354 °F; 452 K)
325 °C (617 °F; 598 K)
Explosive limits 1.3–8.5%
Lethal dose or concentration (LD, LC):
  • 2.2 g/kg (oral, guinea pig)
  • 2.2 g/kg (oral, rabbit)
  • 5.53 g/kg (oral, rat)
  • 5.846 g/kg (oral, mouse)
  • 22.5 g/kg (dermal, rabbit)
Safety data sheet (SDS) hazard.com
Related compounds
Related alkanols
Related compounds
 Diethylhydroxylamine
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
checkY verify (what is checkY☒N ?)

Triethanolamine, or TEOA, is an organic compound with the chemical formula N(CH2CH2OH)3. It is a colourless, viscous liquid. It is both a tertiary amine and a triol. A triol is a molecule with three alcohol groups. Approximately 150,000 tonnes were produced in 1999.[3] It is a colourless compound although samples may appear yellow because of impurities.

  1. ^ "Front Matter". Nomenclature of Organic Chemistry : IUPAC Recommendations and Preferred Names 2013 (Blue Book). Cambridge: The Royal Society of Chemistry. 2014. pp. P001–P004. doi:10.1039/9781849733069-FP001. ISBN 978-0-85404-182-4.
  2. ^ Simond, M. R. (2012). "Dissociation Constants of Protonated Amines in Water at Temperatures from 293.15 K to 343.15 K". Journal of Solution Chemistry. 41: 130. doi:10.1007/s10953-011-9790-3. S2CID 95755026.
  3. ^ Frauenkron, Matthias; Melder, Johann-Peter; Ruider, Günther; Rossbacher, Roland; Höke, Hartmut. "Ethanolamines and Propanolamines". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a10_001. ISBN 978-3527306732.

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