(1-Methylethyl)benzene
2-Phenylpropane
Isopropylbenzene
C9H12 / C6H5CH(CH3)2
Molecular mass: 120.2
ICSC # 0170
CAS # 98-82-8
RTECS # GR8575000
UN # 1918
EC # 601-024-00-X
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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, AFFF, foam, carbon dioxide.
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Explosion
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Above 31°C explosive vapour/air mixtures may be formed.
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Above 31°C use a closed system, ventilation, and explosion-proof electrical equipment.
Prevent build-up of electrostatic charges (e.g., by grounding).
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In case of fire: keep drums, etc., cool by spraying with water.
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Exposure
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PREVENT GENERATION OF MISTS!
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•Inhalation
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Dizziness.
Ataxia.
Drowsiness.
Headache.
Unconsciousness.
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Ventilation, 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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Dry skin.
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Protective gloves.
Protective clothing.
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Remove contaminated clothes.
Rinse and then wash skin with water and soap.
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•Eyes
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Redness.
Pain.
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Safety spectacles.
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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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(See Inhalation).
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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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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.
Do NOT let this chemical enter the environment.
Personal protection:
filter respirator for organic gases and vapours.
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Fireproof.
Separated from
strong oxidants,
acids.
Cool.
Keep in the dark.
Store only if stabilized.
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Marine pollutant.
Note: C
Xn symbol
N symbol
R: 10-37-51/53-65
S: 2-24-37-61-62
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:
As a result of flow, agitation, etc., electrostatic charges can be generated.
Chemical Dangers:
Reacts
violently with
acids
and
strong oxidants
causing fire and explosion hazard.
The substance can form explosive peroxides.
Occupational Exposure Limits:
TLV: 50 ppm as TWA; (ACGIH 2004).
MAK: 50 ppm, 250 mg/m3
Peak limitation category: II(4);
skin absorption (H);
Pregnancy risk group: C;
(DFG 2004).
OSHA PEL: TWA 50 ppm (245 mg/m3) skin
NIOSH REL: TWA 50 ppm (245 mg/m3) skin
NIOSH IDLH: 900 ppm 10%LEL See: 98828
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Routes of Exposure:
The substance can be absorbed into the body
by inhalation
and
through the skin.
Inhalation Risk:
A harmful contamination of the air will be reached rather slowly 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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Swallowing the liquid may cause aspiration into the lungs with the risk of chemical pneumonitis.
The substance may cause effects on the
central nervous system
.
Exposure far above the OEL may result in unconsciousness.
Effects of Long-Term or Repeated Exposure:
Repeated or prolonged contact with skin may cause dermatitis.
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Physical
Properties
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Boiling point: 152°C
Melting point: -96°C
Relative density (water = 1): 0.90
Solubility in water:
none
Vapour pressure, Pa at 20°C: 427
Relative vapour density (air = 1): 4.2
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Relative density of the vapour/air-mixture at 20°C (air = 1): 1.01
Flash point:
31°C c.c.
Auto-ignition temperature: 420°C
Explosive limits, vol% in air: 0.9-6.5
Octanol/water partition coefficient as log Pow: 3.66
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Environmental
Data
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The substance is toxic to aquatic organisms.
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N O T E S
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Check for peroxides prior to distillation; eliminate if found.
Card has been partly updated in April 2005. See sections Occupational Exposure Limits, Emergency Response.
Transport Emergency Card: TEC (R)-30S1918 or 30GF1-III
NFPA Code: H2; F3; R1
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ADDITIONAL INFORMATION
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ICSC: 0170
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CUMENE
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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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