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2-DIMETHYLAMINOETHANOLICSC: 0654
Dimethylethanolamine
N,N-Dimethyl-2-hydroxyethylamine
October 2005
CAS #: 108-01-0
UN #: 2051
EC Number: 203-542-8

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Flammable. Gives off irritating or toxic fumes (or gases) in a fire.  Above 38°C explosive vapour/air mixtures may be formed.  NO open flames, NO sparks and NO smoking.  Above 38°C use a closed system, ventilation and explosion-proof electrical equipment.  Use water spray, alcohol-resistant foam, powder, carbon dioxide.  In case of fire: keep drums, etc., cool by spraying with water. 

 AVOID ALL CONTACT!  
  SYMPTOMS PREVENTION FIRST AID
Inhalation Cough. Sore throat. Burning sensation. Laboured breathing. Symptoms may be delayed. See Notes.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. Half-upright position. Refer for medical attention. 
Skin Redness. Pain. Skin burns.  Protective gloves. Protective clothing.  First rinse with plenty of water for at least 15 minutes, then remove contaminated clothes and rinse again. Refer for medical attention . 
Eyes Redness. Blurred vision. Pain. Severe burns.  Wear safety goggles or eye protection in combination with breathing protection.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Abdominal pain. Nausea. Vomiting. Shock or collapse. Burning sensation.  Do not eat, drink, or smoke during work.  Rinse mouth. Do NOT induce vomiting. Give one or two glasses of water to drink. Rest. Refer for medical attention . 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Personal protection: gas-tight chemical protection suit including self-contained breathing apparatus. Collect leaking and spilled liquid in sealable non-metallic containers as far as possible. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. 

According to UN GHS Criteria

 

Transportation
UN Classification
UN Hazard Class: 8; UN Subsidiary Risks: 3; UN Pack Group: II 

STORAGE
Fireproof. Separated from strong oxidants, acids, acid chlorides, copper and food and feedstuffs. 
PACKAGING
 
2-DIMETHYLAMINOETHANOL ICSC: 0654
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS LIQUID WITH PUNGENT ODOUR. 

Physical dangers
The vapour is heavier than air. 

Chemical dangers
Decomposes on burning. This produces toxic gases including nitrogen oxides. The substance is a medium strong base. Reacts violently with acids, acid chlorides, oxidants and isocyanates. This generates fire and explosion hazard. Attacks copper and its alloys. 

Formula: C4H11NO / (CH3)2NCH2CH2OH
Molecular mass: 89.1
Boiling point: 135°C
Melting point: -59°C
Relative density (water = 1): 0.89
Solubility in water: miscible
Vapour pressure, Pa at 20°C: 612
Relative vapour density (air = 1): 3.03
Flash point: 38°C c.c.
Auto-ignition temperature: 220°C
Explosive limits, vol% in air: 1.6-11.9
Octanol/water partition coefficient as log Pow: -0.55  


EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation of its vapour, through the skin and by ingestion. 

Effects of short-term exposure
The substance is severely irritating to the respiratory tract. The substance is corrosive to the eyes and skin. Corrosive on ingestion. Inhalation of the vapour may cause lung oedema. See Notes. The effects may be delayed. Medical observation is indicated. 

Inhalation risk
No indication can be given about the rate at which a harmful concentration of this substance in the air is reached on evaporation at 20°C. 

Effects of long-term or repeated exposure
 


OCCUPATIONAL EXPOSURE LIMITS
 

ENVIRONMENT
 

NOTES
The symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort.
Rest and medical observation is therefore essential.
Immediate administration of an appropriate inhalation therapy by a doctor or a person authorized by him/her, should be considered. 

ADDITIONAL INFORMATION
  EC Classification
Symbol: C; R: 10-20/21/22-34; S: (1/2)-25-26-36/37/39-45 

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    See Also:
       Toxicological Abbreviations