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NIOSH

N-ETHYLMORPHOLINE

ICSC: 0480

4-Ethylmorpholine
C6H13NO
Molecular mass: 115.2
ICSC # 0480 		CAS # 100-74-3
RTECS # QE4025000
UN # 1993
October 10, 2002 Validated

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 32°C explosive vapour/air mixtures may be formed.
Above 32°C 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

STORAGE

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.)
Fireproof. Separated from strong oxidants.

UN Hazard Class: 3
UN Packing Group: III
ICSC: 0480 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

N-ETHYLMORPHOLINE

ICSC: 0480

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PHYSICAL STATE; APPEARANCE:
COLOURLESS LIQUID , WITH CHARACTERISTIC ODOUR.

PHYSICAL DANGERS:


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.
OSHA PEL†: TWA 20 ppm (94 mg/m3) skin
NIOSH REL: TWA 5 ppm (23 mg/m3) skin
NIOSH IDLH: 100 ppm See: 100743


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 20°C.

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.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:

PHYSICAL
PROPERTIES

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

ENVIRONMENTAL
DATA


N O T E S

MAK value not established but full documentation is available (MAK IIb).
NFPA Code: H2; F3; R0;

ADDITIONAL INFORMATION



ICSC: 0480 N-ETHYLMORPHOLINE
(C) IPCS, CEC, 1994
IMPORTANT LEGAL NOTICE: Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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