33729

Sigma-Aldrich

Triethanolamine

puriss. p.a., ≥99% (GC)

Synonym(s):
Tris(2-hydroxyethyl)amine, 2,2′,2′′-Nitrilotriethanol
Linear Formula:
(HOCH2CH2)3N
CAS Number:
Molecular Weight:
149.19
Beilstein/REAXYS Number:
1699263
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

vapor density

5.14 (vs air)

Quality Level

vapor pressure

0.01 mmHg ( 20 °C)

grade

puriss. p.a.

assay

≥99% (GC)

form

viscous liquid

autoignition temp.

600 °F

expl. lim.

8.5 %

impurities

≤0.0001% heavy metals (as Pb)
≤0.1% ethanolamine
≤0.1% water (Karl Fischer)
≤0.5% diethanolamine (GC)

ign. residue

≤0.005% (as SO4)

refractive index

n20/D 1.485 (lit.)

useful pH range

7.3 - 8.3

pKa (25 °C)

7.8

bp

190-193 °C/5 mmHg (lit.)

mp

17.9-21 °C (lit.)

transition temp

solidification point 20-22 °C

solubility

soluble 149 g/L at 20 °C (completely)

density

1.124 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤1 mg/kg
sulfate (SO42-): ≤20 mg/kg

cation traces

Fe: ≤1 mg/kg

SMILES string

OCCN(CCO)CCO

InChI

1S/C6H15NO3/c8-4-1-7(2-5-9)3-6-10/h8-10H,1-6H2

InChI key

GSEJCLTVZPLZKY-UHFFFAOYSA-N

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General description

Triethanolamine (TEA) belongs to the family of ethanolamines. It includes the properties of both amines and alcohols.

Application

Triethanolamine may be used as a derivatizing reagent for the determination of boric acid in water samples using gas chromatography-mass spectrometry technique. Addition of triethanolamine to an acidic buffer facilitates the determination of fluoride in inorganic orthophosphates by using a fluoride-selective electrode.

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

RIDADR

NONH for all modes of transport

WGK Germany

WGK 1

Flash Point(F)

354.2 °F - closed cup

Flash Point(C)

179 °C - closed cup

Fast quantitative analysis of boric acid by gas chromatography-mass spectrometry coupled with a simple and selective derivatization reaction using triethanolamine
Zeng M-L, et al.
Journal of the American Society For Mass Spectrometry, 21(3), 482-485 (2010)
Final report on the safety assessment of triethanolamine, diethanolamine, and monoethanolamine.
Journal of the American College of Toxicology, 2(7), 183-235 (1983)
Triethanolamine as an Efficient and Reusable Base, Ligand and Reaction Medium for Phosphane-Free Palladium-Catalyzed Heck Reactions.
Li HJ and Wang L.
European Journal of Organic Chemistry, 22, 5099-5102 (2006)
Selene Tognarelli et al.
Minimally invasive therapy & allied technologies : MITAT : official journal of the Society for Minimally Invasive Therapy, 20(1), 3-13 (2010-08-14)
In order to minimize the invasiveness of laparoscopic surgery, different techniques are emerging from research to clinical practice. Whether the incision is performed on the outside - as in Single Port Laparoscopy (SPL) - or on the inside - as...
Toxicology of mono-, di-, and triethanolamine
Knaak BJ, et al.
Reviews of Environmental Contamination and Toxicology, 74(1-86) (1997)

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