2-(Methylamino)ethanol

  • N-Methylethanolamine
  • Methyl (beta-hydroxyethyl) amine
  • beta-(methylamino)ethanol
  • Methylethanolamine
Formula
CH3NHCH2CH2OH
Structure
Description
Viscous liquid, fishy odor.
Uses
Chemical intermediate for pharmaceuticals and in textile indust.

Registry Numbers and Inventories.
CAS
109-83-1
EC (EINECS/ELINCS)
203-710-0
EC Index Number
603-080-00-0
EC Class
Harmful; Corrosive
R 21/22 34
S 26 36/37/39 45
RTECS
KL6650000
RTECS class
Primary Irritant
UN (DOT)
1719
Merck
12,6096
Beilstein/Gmelin
1071196
Beilstein Reference
4-04-00-01422
EPA OPP
489200
Swiss Giftliste 1
G-2425
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C3H9NO
Formula mass
75.11
Melting point, °C
-3
Boiling point, °C
158
Vapor pressure, mmHg
1.1 (25 C)
Vapor density (air=1)
2.59
Saturation Concentration
921 ppm (0.09%) at 20 C (calculated)
Critical temperature
357
Critical pressure
52.31
Density
0.937 g/cm3 (20 C)
Solubility in water
Miscible
Refractive index
1.4385 (20 C)
pKa/pKb
4.30 (pKb)
Partition coefficient, pKow
-0.97
Heat of vaporization
45.7 kJ.mol

Hazards and Protection.
Storage
Store in a cool, dry place. Do not store in direct sunlight. Keep container closed when not in use. Corrosives area.
Handling
Wash thoroughly after handling. Wash hands before eating. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.
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. Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
Wear a NIOSH/MSHA or European Standard EN 149 approved full-facepiece airline respirator in the positive pressure mode with emergency escape provisions. Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Vacuum or sweep up material and place into a suitable disposal container. Reduce airborne dust and prevent scattering by moistening with water. Clean up spills immediately, using the appropriate protective equipment.
Disposal code
5
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents.
Decomposition
Nitrogen oxides, carbon monoxide, oxides of nitrogen, irritating and toxic fumes and gases, carbon dioxide, nitrogen.

Fire.
Flash Point,°C
74
Autoignition, °C
350
Upper exp. limit, %
17.7
Lower exp. limit, %
1.6
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.
Fire potential
Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.
Hazards
Contact with metals may evolve flammable hydrogen gas.
Combustion products
Irritating vapors and toxic gases, such as nitrogen oxides and carbon monoxide, may be formed when involved in fire.
Health
3
 
Flammability
2
 
 
Reactivity
0
 

Health.
Poison_Class
4
Exposure effects
   Ingestion
May cause gastrointestinal irritation with nausea, vomiting and diarrhea. The toxicological properties of this substance have not been fully investigated.
   Inhalation
May cause respiratory tract irritation. May cause severe irritation of the respiratory tract with sore throat, coughing, shortness of breath and delayed lung edema. Causes chemical burns to the respiratory tract. The toxicological properties of this substance have not been fully investigated.
   Skin
May cause skin irritation. May cause severe irritation and possible burns.
   Eyes
May cause eye irritation. Contact with eyes may cause severe irritation, and possible eye burns.

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

Transport.
UN number
1719
Response guide
Hazard class
8
Packing Group
II; III
 
USCG CHRIS Code
MME
 
HS Code
2922 19 80
 
Std. Transport #
4913183