1-Phenylethanone
Phenyl methyl ketone
Acetylbenzene
C8H8O / C6H5COCH3
Molecular mass: 120.1
ICSC # 1156
CAS # 98-86-2
RTECS # AM5250000
EC # 606-042-00-1
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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.
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NO open flames.
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Alcohol-resistant foam,
powder,
carbon dioxide.
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Explosion
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Above 82°C explosive vapour/air mixtures may be formed.
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Above 82°C use a closed system, ventilation.
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Exposure
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PREVENT GENERATION OF MISTS!
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•Inhalation
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Headache.
Dizziness.
Drowsiness.
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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.
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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.
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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.
(Further see Inhalation).
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Do not eat, drink, or smoke during work.
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Rinse mouth.
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.
(Extra personal protection: A/P2 filter respirator for organic vapour and harmful dust).
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Separated from
strong oxidants.
Ventilation along the floor.
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Xn symbol
R: 22-36
S: 2-26
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Important Data
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Physical State; Appearance:
COLOURLESS LIQUID
OR WHITE CRYSTALS
, WITH CHARACTERISTIC ODOUR.
Physical Dangers:
Chemical Dangers:
Occupational Exposure Limits:
TLV: 10 ppm; 49 mg/m3 (ACGIH 1993-1994).
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Routes of Exposure:
The substance can be absorbed into the body
by inhalation,
through the skin and
by ingestion.
Inhalation Risk:
A harmful contamination of the air will be reached rather slowly on evaporation of this substance at 20°C; on spraying or dispersing, however, much faster.
Effects of Short-Term Exposure:
The substance
irritates
the eyes.
The substance may cause effects on the central nervous system.
Exposure at high level may result in unconsciousness.
Effects of Long-Term or Repeated Exposure:
The liquid defats the skin.
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Physical
Properties
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Boiling point: 202°C
Melting point: 20°C
Relative density (water = 1): 1.03
Solubility in water: poor
Vapour pressure, kPa at 15°C: 0.133
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Relative vapour density (air = 1): 4.1
Relative density of the vapour/air-mixture at 20°C (air = 1): 1
Flash point: 82°C o.c.
Auto-ignition temperature: 571°C
Octanol/water partition coefficient as log Pow: 1.58
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Environmental
Data
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N O T E S
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Use of alcoholic beverages enhances the harmful effect.
Hypnone is a trade name.
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ADDITIONAL INFORMATION
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ICSC: 1156
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ACETOPHENONE
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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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