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DIETHYLAMINE
ICSC: 0444
Peer-Review Status: 13.11.2008 Validated
N,N-Diethylamine
N-Ethylethanamine
Diethamine 
CAS #: 109-89-7 RTECS #: HZ8750000
UN #: 1154
EC #: 612-003-00-X
EINECS #: 203-716-3
    Formula: C4H11N / (C2H5)2NH
Molecular mass: 73.1

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Flammable. Gives off irritating or toxic fumes (or gases) in a fire.  NO open flames, NO sparks and NO smoking.  Use powder, alcohol-resistant foam, water in large amounts, carbon dioxide. 
EXPLOSION Vapour/air mixtures are explosive.  Closed system, ventilation, explosion-proof electrical equipment and lighting. Do NOT use compressed air for filling, discharging, or handling.  In case of fire: keep drums, etc., cool by spraying with water. Combat fire from a sheltered position. 
 
EXPOSURE   AVOID ALL CONTACT!  IN ALL CASES CONSULT A DOCTOR! 
Inhalation Sore throat. Cough. Shortness of breath. Burning sensation behind the breastbone. Symptoms may be delayed. See Notes.  Use closed system or ventilation.  Fresh air, rest. Half-upright position. Refer immediately for medical attention. 
Skin Redness. Pain. Blisters. Serious 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 immediately for medical attention. 
Eyes Redness. Pain. Burns.  Wear safety goggles, face shield or eye protection in combination with breathing protection.  Rinse with plenty of water (remove contact lenses if easily possible). Refer immediately for medical attention. 
Ingestion Burning sensation in the throat and chest. Abdominal pain. Diarrhoea. Vomiting. Shock or collapse.  Do not eat, drink, or smoke during work.  Rinse mouth. Do NOT induce vomiting. Refer immediately for medical attention. 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Remove all ignition sources. Evacuate danger area! Personal protection: chemical protection suit including self-contained breathing apparatus. Do NOT let this chemical enter the environment. Do NOT wash away into sewer. Ventilation. Collect leaking liquid in sealable plastic containers. Carefully collect remainder. Then store and dispose of according to local regulations.  Unbreakable packaging.
Put breakable packaging into closed unbreakable container.
Do not transport with food and feedstuffs. 
EC Classification
Symbol: F, C; R: 11-20/21/22-35; S: (1/2)-3-16-26-29-36/37/39-45 
UN Classification
UN Hazard Class: 3; UN Subsidiary Risks: 8; UN Pack Group: II 
GHS Classification
Signal: Danger
Highly flammable liquid and vapour
Harmful if swallowed
Toxic in contact with skin
Harmful if inhaled
Causes severe skin burns and eye damage
May cause respiratory irritation
Harmful to aquatic life 
flam;flamecorrskull;toxic

EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-30S1154 or 30GFC-II.
NFPA Code: H3; F3; R0. 
Fireproof. Separated from strong oxidizers, strong acids, organic compounds and food and feedstuffs. Cool. Well closed. Store only in original container. Store in an area without drain or sewer access. 

IMPORTANT DATA
Physical State; Appearance
COLOURLESS LIQUID WITH PUNGENT ODOUR. 

Physical dangers
The vapour is heavier than air and may travel along the ground; distant ignition possible. 

Chemical dangers
Decomposes on heating or on burning. This produces toxic fumes including nitrogen oxides. The substance is a medium strong base. Reacts with strong oxidants, acids and organic compounds. This generates fire or explosion hazard. Attacks metal, some forms of plastic, rubber and coatings. 

Occupational exposure limits
TLV: 5 ppm as TWA; 15 ppm as STEL; (skin); A4 (not classifiable as a human carcinogen); (ACGIH 2008).
EU OEL ( selected): 5 ppm as TWA; 10 ppm as STEL;.
EU OEL ( selected): 5 ppm as TWA; 10 ppm as STEL;.
EU OEL ( selected): 5 ppm as TWA; 10 ppm as STEL;. 

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

Inhalation risk
A harmful contamination of the air can be reached very quickly on evaporation of this substance at 20°C. 

Effects of short-term exposure
The substance is corrosive to the eyes, skin and respiratory tract. Corrosive on ingestion. Inhalation may cause lung oedema, but only after initial corrosive effects on eyes and/or airways have become manifest. Inhalation may cause pneumonitis. Exposure at high levels could cause severe swelling of the throat. Medical observation is indicated. 

Effects of long-term or repeated exposure
Lungs may be affected by repeated or prolongated exposure to the vapour. The substance may have effects on the teeth. This may result in erosion. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: 55.5°C
Melting point: -50°C
Relative density (water = 1): 0.7
Solubility in water: miscible
Vapour pressure, kPa at 20°C: 25.9
Relative vapour density (air = 1): 2.5
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.4
Flash point: -28°C c.c.
Auto-ignition temperature: 312°C
Explosive limits, vol% in air: 1.8-10.1
Octanol/water partition coefficient as log Pow: 0.58  
The substance is harmful to aquatic organisms. 

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 are therefore essential.
Immediate administration of an appropriate inhalation therapy by a doctor, or by an authorized person, should be considered.
Do NOT take working clothes home. 

ADDITIONAL INFORMATION
 

IPCS
International
Programme on
Chemical Safety
WHO ILO EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004-2012
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.


    See Also:
       Toxicological Abbreviations