Carbamic acid ethyl ester
Ethyl urethane
Urethane
C3H7NO2 / NH2COOC2H5
Molecular mass: 89.09
ICSC # 0314
CAS # 51-79-6
RTECS # FA8400000
EC # 607-149-00-6
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Types of Hazard/ Exposure
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Acute Hazards/ Symptoms
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Prevention
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First Aid/
Fire Fighting
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FIRE
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Combustible.
Gives off irritating or toxic fumes (or gases) in a fire.
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NO open flames.
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Powder, alcohol-resistant foam, water spray, carbon dioxide.
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Explosion
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Exposure
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PREVENT DISPERSION OF DUST!
AVOID ALL CONTACT!
AVOID Exposure OF (PREGNANT) WOMEN!
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IN ALL CASES CONSULT A DOCTOR!
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•Inhalation
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Unconsciousness.
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Local exhaust or breathing protection.
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Fresh air, rest.
Refer for medical attention.
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•Skin
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Protective gloves.
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Rinse skin with plenty of water or shower.
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•Eyes
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Redness.
Pain.
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Face shield
or
eye protection in combination with breathing protection if powder.
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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•Ingestion
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Nausea.
Vomiting.
(See Inhalation).
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Do not eat, drink, or smoke during work.
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Induce vomiting (ONLY IN CONSCIOUS PERSONS!).
Refer for medical attention.
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Spillage Disposal
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Storage
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Packaging & Labelling
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Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting.
Carefully collect remainder,
then remove to safe place.
Personal protection: P3 filter respirator for toxic particles.
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Separated from
food and feedstuffs
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T symbol
R: 45
S: 53-45
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Important Data
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Physical State; Appearance:
ALMOST ODOURLESS, COLOURLESS CRYSTALS,
PELLETS
OR WHITE GRANULAR POWDER.
Physical Dangers:
Chemical Dangers:
The substance decomposes
on heating
or
on burning
producing
toxic fumes
(
nitrogen oxides
).
Occupational Exposure Limits:
TLV not established.
MAK: skin absorption (H);
Carcinogen category: 2; Germ cell mutagen group: 3A;
(DFG 2004).
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Routes of Exposure:
The substance can be absorbed into the body
by inhalation of its aerosol
and
by ingestion.
Inhalation Risk:
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly.
Effects of Short-Term Exposure:
The substance may cause effects on the
central nervous system
and
liver
.
Effects of Long-Term or Repeated Exposure:
The substance may have effects on the bone marrow, brain, kidneys, eyes.
This substance is possibly carcinogenic to humans.
Animal tests show that this substance possibly causes toxic effects upon human reproduction.
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Physical
Properties
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Boiling point: 182-184°C
Melting point: 48-50°C
Relative density (water = 1): 1.1
Solubility in water, g/100 ml: 0.2
Vapour pressure, Pa at 25°C: 48
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Relative vapour density (air = 1): 3.07
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.00
Flash point: 92°C c.c.
Octanol/water partition coefficient as log Pow: -0.15
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Environmental
Data
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N O T E S
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Card has been partly updated in October 2005. See sections Occupational Exposure Limits, EU classification.
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ADDITIONAL INFORMATION
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ICSC: 0314
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ETHYL CARBAMATE
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(C) IPCS, CEC, 1994
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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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