ANTIPYRINE 0376
March 1996
1,2-Dihydro-1,5-dimethyl-2-phenyl-3H-pyrazol-3-one
CAS No: 60-80-0
2,3-Dimethyl-1-phenyl-3-pyrazolin-3-one
RTECS No: CD2450000
Phenazone
UN No:
C11H12N2O
EC No:
Molecular mass: 188.2
TYPES OF
ACUTE HAZARDS/SYMPTOMS PREVENTION FIRST AID/FIRE FIGHTING
HAZARD/
EXPOSURE
Combustible. Gives off irritating or NO open flames. Powder, water spray, foam, carbon
FIRE
toxic fumes (or gases) in a fire. dioxide.
EXPLOSION
EXPOSURE PREVENT DISPERSION OF DUST!
STRICT HYGIENE!
Blue lips or finger nails. Blue skin. Ventilation, local exhaust, or Fresh air, rest. Refer for medical
Inhalation
Shortness of breath. breathing protection. attention.
Protective gloves.
Skin
Pain. Safety spectacles. First rinse with plenty of water for
Eyes
several minutes (remove contact
lenses if easily possible), then take
to a doctor.
Blue lips or fingernails. Blue skin. Do not eat, drink, or smoke during Rinse mouth. Give a slurry of
Ingestion
work. activated charcoal in water to drink.
Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Sweep spilled substance into containers; if Symbol
appropriate, moisten first to prevent dusting. R:
Carefully collect remainder, then remove to safe S:
place (extra personal protection: P2 filter respirator
for harmful particles).
EMERGENCY RESPONSE STORAGE
Separated from strong oxidants.
Prepared in the context of cooperation between the International
IPCS Programme on Chemical Safety and the European Commission
International 漏 IPCS 1999
Programme on
Chemical Safety SEE IMPORTANT INFORMATION ON THE BACK.
0376 ANTIPYRINE
IMPORTANT DATA
Physical State; Appearance Routes of Exposure
COLOURLESS CRYSTALS OR WHITE POWDER. The substance can be absorbed into the body by inhalation of
the dust and by ingestion.
Chemical Dangers
Inhalation Risk
The substance decomposes on heating producing toxic and
corrosive fumes of nitrogen oxides. Reacts with oxidants. Evaporation at 20C is negligible; a harmful concentration of
airborne particles can, however, be reached quickly when
dispersed, especially if powdered.
Occupational Exposure Limits
TLV not established.
Effects of Short-term Exposure
The substance irritates the eyes and the respiratory tract. The
substance may cause effects on the blood, resulting in
formation of methaemoglobin.
PHYSICAL PROPERTIES
Boiling point: 319C Relative density (water = 1): 1.19
Melting point: 113C Solubility in water: very good
ENVIRONMENTAL DATA
NOTES
ADDITIONAL INFORMATION
Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible
LEGAL NOTICE
for the use which might be made of this information
漏 IPCS 1999
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