Diethylbenzene
C6H4(C2H5)2
Molecular mass: 134.2
ICSC # 0445
CAS # 25340-17-4
RTECS # CZ5600000
UN # 2049
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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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Flammable.
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NO open flames, NO sparks, and NO smoking.
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Powder, carbon dioxide.
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Explosion
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Exposure
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PREVENT GENERATION OF MISTS!
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•Inhalation
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Cough.
Dizziness.
Headache.
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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Pain.
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Protective gloves.
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Remove contaminated clothes.
Rinse skin with plenty of water or shower.
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•Eyes
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Redness.
Pain.
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Safety spectacles
or
eye protection in combination with breathing protection.
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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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Confusion.
Dizziness.
Drowsiness.
Headache.
Unconsciousness.
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Do not eat, drink, or smoke during work.
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Rinse mouth.
Do NOT induce vomiting.
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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Personal protection: A/P2 filter respirator for organic vapour and harmful dust.
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.
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Separated from
strong oxidants.
Well closed.
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UN Hazard Class: 3
UN Packing Group: III
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Important Data
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Physical State; Appearance:
COLOURLESS LIQUID
, WITH CHARACTERISTIC ODOUR.
Physical Dangers:
The vapour mixes well with air, explosive mixtures are easily formed.
Chemical Dangers:
Reacts
violently with
oxidants
causing fire and explosion hazard.
Attacks rubber.
Occupational Exposure Limits:
TLV not established.
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Routes of Exposure:
The substance can be absorbed into the body
by inhalation of its vapour
and
by ingestion.
Inhalation Risk:
No indication can be given about the rate in which a harmful concentration in the air is reached on evaporation of this substance at 20°C.
Effects of Short-Term Exposure:
The substance
is irritating to
the eyes
and
the skin
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The substance may cause effects on the
central nervous system
, resulting in headache, dizziness and unconsiousness.
Effects of Long-Term or Repeated Exposure:
The liquid defats the skin.
The substance may have effects on the liver and kidneys.
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Physical
Properties
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Boiling point: 184°C
Melting point: -31°C
Relative density (water = 1): 0.86
Solubility in water:
none
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Vapour pressure, kPa at 20°C: 0.1
Relative vapour density (air = 1): 4.6
Flash point: 55°C c.c.
Auto-ignition temperature: 380°C
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Environmental
Data
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The substance is harmful to aquatic organisms.
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N O T E S
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Insufficient data are available on the effect of this substance on human health, therefore utmost care must be taken.
Card has been partly updated in October 2005. See section Emergency Response.
Transport Emergency Card: TEC (R)-30S2049 or 30GF1-III
NFPA Code: H2; F2; R0
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ADDITIONAL INFORMATION
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ICSC: 0445
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o-DIETHYLBENZENE
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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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