BENZOYL PEROXIDE 0225
April 2002
CAS No: 94-36-0 Dibenzoyl peroxide
RTECS No: DM8575000 Benzoyl superoxide
UN No: 3104 C14H10O4
EC No: 617-008-00-0 Molecular mass: 242.2
TYPES OF
ACUTE HAZARDS/SYMPTOMS PREVENTION FIRST AID/FIRE FIGHTING
HAZARD/
EXPOSURE
FIRE Explosive. Many reactions may cause NO open flames, NO sparks and NO Water in large amounts.
fire or explosion. smoking. NO contact with flammable
substances. NO contact with hot
surfaces.
EXPLOSION Risk of fire and explosion. See Chemical Do NOT expose to friction or shock. Use In case of fire: keep drums, etc., cool by
Dangers. non-sparking handtools. spraying with water. Combat fire from a
sheltered position.
EXPOSURE PREVENT DISPERSION OF DUST!
Inhalation Cough. Sore throat. Local exhaust or breathing protection. Fresh air, rest.
Skin Redness. Protective gloves. Protective clothing. Remove contaminated clothes. Rinse and
then wash skin with water and soap.
Eyes Redness. Safety goggles. First rinse with plenty of water for several
minutes (remove contact lenses if easily
possible), then take to a doctor.
Ingestion Do not eat, drink, or smoke during work. Rinse mouth. Give one or two glasses of
water to drink. Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Evacuate danger area in case of large spill! Remove all EU classification
ignition sources. Wash away remainder with plenty of water. E Symbol
Do NOT absorb in saw-dust or other combustible Xi Symbol
absorbents. R: 2-36-43
S: (1/2-)3/7-14-36/37/39
UN classification
UN Hazard Class: 5.2
EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-52GP1-S Fireproof. Separated from combustible and reducing substances. Store only in original
NFPA Code: H 1; F 4; R 4; ox packaging. See Chemical Dangers.
Prepared in the context of cooperation between the International
IPCS Programme on Chemical Safety and the European Commission 漏
IPCS 2006
International
Programme on
SEE IMPORTANT INFORMATION ON THE BACK.
Chemical Safety
0225 BENZOYL PEROXIDE
IMPORTANT DATA
Physical State; Appearance Routes of exposure
WHITE CRYSTALS OR POWDER The substance can be absorbed into the body by inhalation of its aerosol.
Chemical dangers Inhalation risk
May explosively decompose on shock, friction, or concussion. May Evaporation at 20/C is negligible; a harmful concentration of airborne
explode on heating above 103-105/C. On combustion, forms irritating and particles can, however, be reached quickly when dispersed, especially if
toxic fumes and gases of benzoic acid (see ICSC 0103) and carbon powdered.
monoxide (see ICSC 0023). The substance is a strong oxidant and reacts
violently with combustible and reducing materials. Reacts violently with Effects of short-term exposure
many organic and inorganic acids, alcohols and amines causing fire and The substance is irritating to the eyes, the skin and the respiratory tract.
explosion hazard.
Effects of long-term or repeated exposure
Occupational exposure limits Repeated or prolonged contact may cause skin sensitization.
TLV: 5 mg/m3 as TWA A4 (ACGIH 2001).
MAK: 5 mg/m3 (Inhalable fraction) Peak limitation category: I(1) (DFG
2005).
PHYSICAL PROPERTIES
Melting point (decomposes): 103-105/C Vapour pressure, kPa at 20/C: <0.1
Density: 1.3 g/cm3 Auto-ignition temperature: 80/C
Solubility in water: poor Octanol/water partition coefficient as log Pow: 3.46
ENVIRONMENTAL DATA
NOTES
Carrier solvents used in commercial formulations may change physical and toxicological properties.
Rinse contaminated clothes (fire hazard) with plenty of water.
Card has been partly updated in October 2006: see sections Packaging, and Ingestion first aid.
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 2006
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