Diethanolamine

CAS No. 111-42-2

Formula: C4H11NO2
Basic Info

Diethanolamine, often abbreviated as DEA or DEOA, is an organic compound with the formula HN(CH2CH2OH)2. Pure diethanolamine is a white solid at room temperature, but its tendency to absorb water and to supercool mean it is often encountered as a colorless, viscous liquid. Diethanolamine is polyfunctional, being a secondary amine and a diol. Like other organic amines, diethanolamine acts as a weak base. Reflecting the hydrophilic character of the secondary amine and hydroxyl groups, DEA is soluble in water. Amides prepared from DEA are often also hydrophilic.

Formula
C4H11NO2
Molecular Weight
105.136
Exact Mass
105.079
LogP
-1.0485
PSA
52.49
Synonyms

DEA

2,2'-Iminodiethanol

Ethanol, 2,2‘-iminobis-

2,2'-Azanediyldiethanol

bis-(2-hydroxy-ethyl)-amine

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Properties
Appearance & Physical State
solid or viscous liquid with an amine odour
Density
1.096
Boiling Point
268ºC
Melting Point
27-30ºC
Flash Point
179ºC
Refractive Index
1.475-1.479
Water Solubility
MISCIBLE
Stability
Stable. Incompatible with carbon dioxide, strong acids, strong oxidizing agents. Deliquescent.
Storage Condition
Store at RT
Vapor Density
3.6 (vs air)
Vapor Pressure
<0.98 atm ( 100 °C)
Safety Info
RTECS
KL2975000
Safety Statements
S26-S36/37/39-S46
WGK Germany
1
Risk Statements
R22; R38; R41; R48/22
HS Code
2922120090
RIDADR
UN 1760
Packing Group
II
Caution Statement
P273; P280; P301 + P312 + P330; P305 + P351 + P338 + P310
Hazard Codes
Spectrum
NMR Spectrum 1H NMR : 90 MHz in CDCl3
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IR Spectrum IR : liquid film
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Mass Spectrum Mass
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Raman Spectrum Raman : 4880 A,200 M,liquid
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Analysis Methods
Kovats' RI, polar column, isothermal
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Column Shape
Packed
Active Phase(℃)
PEG-2000
Retention index
2200.
Temperature Control
179.
Method
isothermal
Comments
He, Celite 545 (44-60 mesh); Column length: 3. m
Reference
Anderson, A.Jurel, S.Shymanska, M.Golender, L.Gas-liquid chromatography of some aliphatic and heterocyclic mono- and pollyfunctional amines. VII. Retention indices of amines in some polar and unpolar stationary phasesLatv. PSR Zinat. Akad. Vestis Kim. Ser.1973, 1, 51-63.
Kovats' RI, polar column, isothermal
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Column Shape
Packed
Active Phase(℃)
PEG-2000
Retention index
2141.
Temperature Control
200.
Method
isothermal
Comments
He, Celite 545 (44-60 mesh); Column length: 3. m
Reference
Anderson, A.Jurel, S.Shymanska, M.Golender, L.Gas-liquid chromatography of some aliphatic and heterocyclic mono- and pollyfunctional amines. VII. Retention indices of amines in some polar and unpolar stationary phasesLatv. PSR Zinat. Akad. Vestis Kim. Ser.1973, 1, 51-63.
Kovats' RI, polar column, isothermal
expand collapse
Column Shape
Packed
Active Phase(℃)
PEG-2000
Retention index
2180.
Temperature Control
200.
Method
isothermal
Comments
He, Celite 545 (44-60 mesh); Column length: 3. m
Reference
Anderson, A.Jurel, S.Shymanska, M.Golender, L.Gas-liquid chromatography of some aliphatic and heterocyclic mono- and pollyfunctional amines. VII. Retention indices of amines in some polar and unpolar stationary phasesLatv. PSR Zinat. Akad. Vestis Kim. Ser.1973, 1, 51-63.
Toxicity
OTHER MULTIPLE DOSE TOXICITY DATA
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Type of Test
TDLo - Lowest published toxic dose
Exposure Route
Oral
Species Observed
Rodent - rat
Dose/Duration
52 gm/kg/14D-C
Toxic Effects
Kidney, Ureter, Bladder--other changes in urine composition<br>Blood--normocytic anemia<br>Biochemical-Enzyme inhibition, induction, or change in blood or tissue levels-dehydrogenases
Reference
National Toxicology Program Technical Report Series. (Research Triangle Park, NC 27709) No.206- Volume(issue)/page/year: NIH-92-3343
OTHER MULTIPLE DOSE TOXICITY DATA
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Type of Test
TDLo - Lowest published toxic dose
Exposure Route
Oral
Species Observed
Rodent - rat
Dose/Duration
8827 mg/kg/13W-C
Toxic Effects
Kidney, Ureter, Bladder--changes in bladder weight<br>Blood--normocytic anemia<br>Related to Chronic Data--changes in testicular weight
Reference
National Toxicology Program Technical Report Series. (Research Triangle Park, NC 27709) No.206- Volume(issue)/page/year: NIH-92-3343
OTHER MULTIPLE DOSE TOXICITY DATA
expand collapse
Type of Test
TDLo - Lowest published toxic dose
Exposure Route
Oral
Species Observed
Rodent - rat
Dose/Duration
49 gm/kg/7W-C
Toxic Effects
Liver--other changes<br>Blood--normocytic anemia<br>Related to Chronic Data--death
Reference
Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 17,308,1970

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