Diethanolamine

Diethanolamine

Skeletal formula
Ball and stick diagram
Spacefill model
Names
Preferred IUPAC name 2,2′-Azanediyldi(ethan-1-ol)
Other names Bis(hydroxyethyl)amine N,N-Bis(2-hydroxyethyl)amine 2,2'-Dihydroxydiethylamine β,β'-Dihydroxydiethylamine Diolamine 2-[(2-Hydroxyethyl)amino]ethanol 2,2'-Iminobisethanol Iminodiethanol Di(2-hydroxyethyl)amine bis(2-Hydroxyethyl)amine 2,2'-Iminodiethanol
Identifiers
CAS Number	111-42-2 Y
3D model (JSmol)	Interactive image
3DMet	B01050
Beilstein Reference	605315
ChEBI	CHEBI:28123 Y
ChEMBL	ChEMBL119604 Y
ChemSpider	13835604 Y
ECHA InfoCard	100.003.517
EC Number	203-868-0
KEGG	D02337 Y
MeSH	diethanolamine
PubChem CID	8113
RTECS number	KL2975000
UNII	AZE05TDV2V Y
CompTox Dashboard (EPA)	DTXSID3021932
InChI InChI=1S/C4H11NO2/c6-3-1-5-2-4-7/h5-7H,1-4H2 Y Key: ZBCBWPMODOFKDW-UHFFFAOYSA-N Y
SMILES OCCNCCO
Properties
Chemical formula	C4H11NO2
Molar mass	105.137 g·mol−1
Appearance	Colourless crystals
Odor	Ammonia odor
Density	1.097 g·mL−1
Melting point	28.00 °C; 82.40 °F; 301.15 K
Boiling point	271.1 °C; 519.9 °F; 544.2 K
Solubility in water	Miscible
log P	-1.761
Vapor pressure	<1 Pa (at 20 °C)
UV-vis (λmax)	260 nm
Refractive index (nD)	1.477
Thermochemistry
Heat capacity (C)	137 J·K−1·mol−1
Std enthalpy of formation (ΔfH⦵298)	−496.4 – −491.2 kJ·mol−1
Std enthalpy of combustion (ΔcH⦵298)	−26.548 – −26.498 MJ·kmol−1
Hazards
GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H302, H315, H318, H373
Precautionary statements	P280, P305+P351+P338
Flash point	138 °C (280 °F; 411 K)
Autoignition temperature	365 °C (689 °F; 638 K)
Explosive limits	1.6–9.8%[1]
Lethal dose or concentration (LD, LC):
LD50 (median dose)	120 mg·kg−1 (intraperitoneal, rat) 710 mg·kg−1 (oral, rat) 778 mg·kg−1 (intravaneous, rat) 12.2 g·kg−1 (dermal, rabbit)
NIOSH (US health exposure limits):
PEL (Permissible)	None[1]
REL (Recommended)	TWA: 3 ppm (15 mg/m3)[1]
IDLH (Immediate danger)	N.D.[1]
Safety data sheet (SDS)	sciencelab.com
Related compounds
Related alkanols	N-Methylethanolamine Dimethylethanolamine Diethylethanolamine N,N-Diisopropylaminoethanol Methyl diethanolamine Triethanolamine Bis-tris methane Meglumine
Related compounds	Diethylhydroxylamine
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Y verify (what is YN ?) Infobox references

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 tendencies to absorb water and to supercool^[2] often results in it being found in a colorless, viscous liquid state. 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. In 2013, the chemical was classified by the International Agency for Research on Cancer as "possibly carcinogenic to humans" (Group 2B).