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ACETOPHENONE ICSC: 1156
October 1994
1-Phenylethanone
Phenyl methyl ketone
Acetylbenzene

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CAS # 98-86-2 C 8H 8O/C 6H 5COCH 3
RTECS # AM5250000 Molecular mass: 120.1
EC # 606-042-00-1

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID /    FIRE FIGHTING   
FIRE Combustible.
NO open flames.
Alcohol-resistant foam, powder, carbon dioxide.
EXPLOSION Above 82°C explosive vapour/air mixtures may be formed.
Above 82°C use a closed system, ventilation.

EXPOSURE
PREVENT GENERATION OF MISTS!

Inhalation Headache. Dizziness. Drowsiness.
Ventilation, local exhaust, or breathing protection.
Fresh air, rest. Refer for medical attention.
Skin Dry skin.
Protective gloves.
Remove contaminated clothes. Rinse skin with plenty of water or shower.
Eyes Redness. Pain.
Safety spectacles.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion Nausea (further see Inhalation).
Do not eat, drink, or smoke during work.
Rinse mouth. Refer for medical attention.

SPILLAGE DISPOSAL PACKAGING & LABELLING
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).
Xn Symbol
R: 22-36
S: 2-26


EMERGENCY RESPONSE STORAGE
NFPA Code: H1; F2; R0
Separated from strong oxidants. Ventilation along the floor.

IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
COLOURLESS LIQUID OR WHITE CRYSTALS , WITH CHARACTERISTIC ODOUR.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 10 ppm; 49 mg/m 3 (ACGIH 1993-1994).
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.

PHYSICAL PROPERTIES
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
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

ENVIRONMENTAL DATA


NOTES
Use of alcoholic beverages enhances the harmful effect. Hypnone is a trade name.

IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission

© IPCS 1999
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.



Updated by AS. Approved by EC. Last update: 10.10.2000.