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N-ETHYLMORPHOLINE ICSC: 0480
Date of Peer Review: October 2002

4-Ethylmorpholine
CAS # 100-74-3 C6H13NO
RTECS # QE4025000 Molecular mass: 115.2
UN # 1993
EC #
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. NO contact with hot surfaces.
Water spray, alcohol-resistant foam.
EXPLOSION Above 32C explosive vapour/air mixtures may be formed.
Above 32C use a closed system, ventilation, and explosion-proof electrical equipment.
In case of fire: keep drums, etc., cool by spraying with water.
EXPOSURE


Inhalation Cough. Sore throat.
Ventilation, local exhaust, or breathing protection.
Fresh air, rest. Refer for medical attention.
Skin Redness.
Protective gloves. Protective clothing.
Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention.
Eyes Redness. Pain. Blurred vision.
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 take to a doctor.
Ingestion
Do not eat, drink, or smoke during work.
Rinse mouth. Give plenty of water to drink.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Ventilation. Remove all ignition sources. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent and remove to safe place. (Extra personal protection: filter respirator for organic gases and vapours.)
EU Classification
UN Classification
UN Hazard Class: 3
UN Pack Group: III
EMERGENCY RESPONSE STORAGE
NFPA Code: H2; F3; R0;
Fireproof. Separated from strong oxidants.
IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities IPCS, CEC 1999

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N-ETHYLMORPHOLINE ICSC: 0480
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
COLOURLESS LIQUID, WITH CHARACTERISTIC ODOUR.

CHEMICAL DANGERS:
The substance decomposes on heating producing toxic gases and vapours (ammonia, nitrogen oxides, carbon monoxide). Reacts violently with strong oxidants causing fire and explosion hazard. Attacks plastic, rubber and coatings.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 5 ppm as TWA; (skin); (ACGIH 2002).
MAK not established. See Notes.
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 rather quickly on evaporation of this substance at 20C.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance is irritating to the eyes, the skin and the respiratory tract. The substance may cause effects on the eyes, resulting in distortion of vision.

PHYSICAL PROPERTIES
Boiling point: 138C
Melting point: -63C
Relative density (water = 1): 0.99
Solubility in water: miscible
Vapour pressure, kPa at 20C: 0.80
Relative vapour density (air = 1): 4.0
Flash point: 32C
Auto-ignition temperature: 185C
Explosive limits, vol% in air: 1-9.8
ENVIRONMENTAL DATA

NOTES
MAK value not established but full documentation is available (MAK IIb).
ADDITIONAL INFORMATION


LEGAL NOTICE Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information
IPCS, CEC 1999