2-Dimethylaminoethanol

  • 2-(Dimethylamino)ethanol
  • N,N-Dimethyl-2-hydroxyethylamine
  • N,N-Dimethylethanolamine
  • Dimethylethanolamine
Formula
(CH3)2NCH2CH2OH
Structure
Description
Colorless to pale yellow liquid, ammonia-like odor, hygroscopic.
Uses
Medication, catalyst.

Registry Numbers and Inventories.
CAS
108-01-0
EC (EINECS/ELINCS)
203-542-8
EC Index Number
603-047-00-0
EC Class
Flammable; Harmful; Corrosive
R 10 20/21/22 34
S 25 26 36/37/39 45
RTECS
KK6125000
RTECS class
Primary Irritant
UN (DOT)
2051
Merck
13,2863
Beilstein/Gmelin
1209235
Beilstein Reference
4-11-00-00122
Swiss Giftliste 1
G-1930
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C4H11NO
Formula mass
89.14
Melting point, °C
-59
Boiling point, °C
129 - 134
Vapor pressure, mmHg
6 (25 C)
Vapor density (air=1)
1
Saturation Concentration
0.5% (5000 ppm) at 25 C (calculated)
Evaporization number
0.48 (butyl acetate = 1)
Odor Threshold Odor threshold 0.045 ppm recognition
Critical temperature
300
Critical pressure
40.8
Density
0.8871 g/cm3 (20 C)
Solubility in water
Soluble
Viscosity
0.49 cp (121 C)
Surface tension
27.1 g/s2
Refractive index
1.4277 (20 C)
Dipole moment
2.52 D (10 C)
pKa/pKb
5.12 (pKb)
Partition coefficient, pKow
-0.57
Heat of vaporization
43.4 kJ/mol
Heat of combustion
-3945 kJ/mol

Hazards and Protection.
Storage
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Flammables-area. Store protected from light.
B3 D1B E
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Ground and bond containers when transferring material. Do not get in eyes, on skin, or on clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep container tightly closed. Do not ingest or inhale. Use with adequate ventilation. Keep away from flames and other sources of high temperatures that may cause material to form vapors or mists. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.
Protection
Eyes: Wear safety glasses and chemical goggles if splashing is possible. Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves and clothing to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.
Respirators
Wear a NIOSH/MSHA or European Standard EN 149 approved full-facepiece airline respirator in the positive pressure mode with emergency escape provisions.
Small spills/leaks
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Do not flush into a sewer. Remove all sources of ignition. Use a spark-proof tool. Provide ventilation. Do not get water inside containers.
Disposal code
1
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Oxidizing agents - copper, copper alloys - zinc - acids - galvanized iron.
Decomposition
Nitrogen oxides, carbon monoxide, carbon dioxide, nitrogen.

Fire.
Flash Point,°C
39
Autoignition, °C
245
Upper exp. limit, %
12.2
Lower exp. limit, %
1.4
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Containers may explode in the heat of a fire. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam. Do NOT get water inside containers. For large fires, use water spray, fog or alcohol-resistant foam. Cool containers with flooding quantities of water until well after fire is out.
Fire potential
Flammable/combustible material. May be ignited by heat, sparks or flames.
Hazards
Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers.
Combustion products
May contain toxic gases including ammonia (incomplete combustion) and NOx.
Health
3
 
Flammability
2
 
 
Reactivity
0
 

Health.
Exposure limit(s)
OEL-RUSSIA:STEL 5 mg/m3;Skin
Poison_Class
4
Exposure effects
   Ingestion
May cause digestive tract disturbances. May be harmful if swallowed.
   Inhalation
May cause severe irritation of the respiratory tract with sore throat, coughing, shortness of breath and delayed lung edema.
   Skin
May cause severe irritation and possible burns. May be harmful if absorbed through the skin.
   Eyes
Contact with eyes may cause severe irritation, and possible eye burns. Lachrymator.

First aid
 
   Ingestion
Never give anything by mouth to an unconscious person. Get medical aid immediately. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
   Inhalation
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
   Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse. Destroy contaminated shoes.
   Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately. Do NOT allow victim to rub or keep eyes closed. Extensive irrigation is required (at least 30 minutes).

Transport.
UN number
2051
Response guide
Hazard class
8
Packing Group
II
 
USCG CHRIS Code
DMB
 
HS Code
2922 19 80
 
Std. Transport #
4936593
 
IMO Chemical Code
17
IMO Pollution Category
D
IMO Hazard code
S