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398179

Sigma-Aldrich

Diethanolamine

ACS reagent, ≥98.5%

Synonym(s):

2,2′-Iminodiethanol, Bis(2-hydroxyethyl)amine

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About This Item

Linear Formula:
HN(CH2CH2OH)2
CAS Number:
111-42-2
Molecular Weight:
105.14
Beilstein:
605315
EC Number:
203-868-0
MDL number:
MFCD00002843
UNSPSC Code:
12352100
PubChem Substance ID:
24864724
NACRES:
NA.21

grade

ACS reagent

Quality Level

200

vapor density

3.6 (vs air)

vapor pressure

<0.98 atm ( 100 °C)

Assay

≥98.5%

form

solid or liquid

autoignition temp.

689 °F

eq. wt.

104.0-106.0 Apparent

expl. lim.

10.6 %

impurities

≤0.15% water
≤1.0% C2H7NO
≤1.0% C6H15NO3

ign. residue

≤0.005%

color

APHA: ≤15

refractive index

n20/D 1.477 (lit.)

bp

217 °C/150 mmHg (lit.)

mp

28 °C (lit.)

solubility

water: soluble 105 g/L at 20 °C

density

1.097 g/mL at 25 °C (lit.)

SMILES string

OCCNCCO

InChI

1S/C4H11NO2/c6-3-1-5-2-4-7/h5-7H,1-4H2

InChI key

ZBCBWPMODOFKDW-UHFFFAOYSA-N

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General description

Diethanolamine (DEA) is an amino alcohol commonly used in the preparation of soaps and surfactants, in agricultural chemicals and in textile processing. It is used as an absorbent for capturing CO2. Its toxic and carcinogenic effect has been studied.

Application

Diethanolamine may be used in the following processes:
  • Preparation of disodiumiminodiacetic acid by dehydrogenation.
  • As a solvent and reactant in triazine based dendrimer synthesis.
  • Preparation of diethanolamine ionic liquids employed in green Heck reaction.

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1 - Repr. 2 - Skin Irrit. 2 - STOT RE 2 Oral

Target Organs

Kidney,Liver,Blood

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

Flash Point(F)

280.4 °F - closed cup

Flash Point(C)

138 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
SDBB0376
MKCW4468
STBL3174
STBL3086
STBL1604

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A continuous diethanolamine dehydrogenation fixed bed catalyst and reactor system.
Hickman DA, et al.
Chemical Engineering Journal, 278, 447-453 (2015)
Development, Characterization of Hydroxyl Terminated Dendritic Macromolecules as Prospective Drug Carriers.
Gajjar D, et al.
American Journal of Polymer Science & Engineering, 3(1), 73-89 (2015)
Diethanolamine and N,N-diethylethanolamine ionic liquids as precatalyst-precursors and reaction media in green Heck reaction protocol.
Petrovic ZD, et al.
J. Mol. Catal. A: Chem., 327(1), 45-50 (2010)
Monitoring of Chemical Speciation of DEA-CO2-Water System by Raman Spectroscopy.
Shahid MZ, et al.
Advanced Materials Research, 1113, 358-363 (2015)
Bjørn Henrik Hansen et al.
Aquatic toxicology (Amsterdam, Netherlands), 99(2), 212-222 (2010-06-12)
Alkanolamines are surface-active chemicals used in a wide range of industrial, agricultural and pharmaceutical applications and products. Of particular interest is the use of alkanolamines such as diethanolamine (DEA) in the removal of CO(2) from natural gas and for CO(2)
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