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DODECANOYL PEROXIDE ICSC: 0264
Date of Peer Review: March 1999

Lauroyl peroxide
Peroxide, didodecanoyl
bis(1-Oxododecyl)peroxide
CAS # 105-74-8 (C11H23CO)2O2
RTECS # OF2625000 Molecular mass: 398.7
UN # 3106
EC Index # 617-003-00-3
TYPES OF HAZARD / EXPOSURE ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE FIGHTING
FIRE Flammable.
NO open flames, NO sparks, and NO smoking.
Water in large amounts, water spray.
EXPLOSION Risk of fire and explosion on contact with combustible substances, reducing agents and at warming.
Prevent warming above 25C.
In case of fire: keep drums, etc., cool by 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. Pain.
Protective gloves.
Remove contaminated clothes. Rinse and then wash skin with water and soap.
Eyes Redness. Pain.
Safety goggles or face shield.
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 plenty of water to drink. Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Evacuate danger area in case of large spills! Consult an expert! Remove all ignition sources. Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place. Do NOT absorb in saw-dust or other combustible absorbents. Personal protection: P2 filter respirator for harmful particles.
EU Classification
Symbol: O
R: 7
S: (2-)-3/7-14-36-37/39
UN Classification
UN Hazard Class: 5.2

EMERGENCY RESPONSE STORAGE
Transport Emergency Card: TEC (R)-52GP1-S
NFPA Code: H0; F2; R3; OX
Fireproof. Separated from combustible and reducing substances. Cool.
IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities IPCS, CEC 2005

SEE IMPORTANT INFORMATION ON BACK
DODECANOYL PEROXIDE ICSC: 0264
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
WHITE POWDER OR SOLID IN VARIOUS FORMS.

CHEMICAL DANGERS:
Heating may cause violent combustion or explosion. The substance is a strong oxidant and reacts with combustible and reducing materials , causing fire and explosion hazard.

OCCUPATIONAL EXPOSURE LIMITS:
TLV not established.
ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its aerosol.

INHALATION RISK:
Evaporation at 20C is negligible; a harmful concentration of airborne particles can, however, be reached quickly.

EFFECTS OF SHORT-TERM EXPOSURE:
The aerosol is irritating to the eyes, the skin and the respiratory tract.

PHYSICAL PROPERTIES
Melting point: 49-57C
Density: 0.9 g/cm
Solubility in water: none
Auto-ignition temperature: 112C
ENVIRONMENTAL DATA

NOTES
Laurox W 40, Alperox, LYP97 are trade names. Other UN number for water solution (<42%): 3109. Card has been partly updated in October 2005. See sections EU classification, Emergency Response.
ADDITIONAL INFORMATION


LEGAL NOTICE Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information
IPCS, CEC 2005