Product No. 18190-B PELCO Benzoyl Peroxide Paste
Issue Date (10-16-00) Review Date (03-12-03)

Section 1: Product and Company Identification
Product Name: Benzoyl Peroxide Paste
Synonym: Benzoyl peroxide in Dibutyl phthalate.
Company Name
Ted Pella, Inc. and PELCO International, P.O. Box 492477, Redding, CA 96049-2477
Domestic Phone  (800) 237-3526 (Mon-Thu. 6:00AM to 4:30PM PST; Fri 6:00AM to 4:00PM PST)
International Phone (01) (530) 243-2200 (Mon-Thu. 6:00AM to 4:30PM PST; Fri 6:00AM to 4:00PM PST)
Chemtrec Emergency Number 1-800-424-9300 24 hrs a day.

Section 2: Composition / Information on Ingredients

Principle Hazardous Component(s) (chemical and common name(s)) (Cas. No)	%	OSHA PEL mg/m3	ACGIH  TLV mg/m3	NTP	IARC	OSHA regulated
Benzoyl Peroxide (94-36-0)	~90	5	5	ND	ND	ND
Dibutyl phthalate (DBP) (84-74-2)	~10	5	5	ND	ND	ND

Section 3: Hazard Identification
Emergency overview
Appearance: Thick, white paste with a slight odor.
Immediate effects: ND

Potential health effects
Primary Routes of entry: Ingestion.
Signs and Symptoms of Overexposure:  Prolonged skin contact may cause skin irritation and redness.  Contact may cause eye irritation and/or damage.  May cause irritation of the nose, throat and lungs.  If ingested, may cause toxic effects.
Eyes: Contact may cause eye irritation and/or damage.
Skin: Prolonged skin contact may cause skin irritation and redness.
Ingestion: May cause toxic effects.
Inhalation: LC₅₀-ND
Chronic Exposure: Prolonged skin contact may cause skin irritation and redness.  Contact may cause eye irritation and/or damage.  May cause irritation of the nose, throat and lungs.  If ingested, may cause toxic effects.
Chemical Listed As Carcinogen Or Potential Carcinogen: NA
See Toxicological Information (Section11)

Potential environmental effects
See Ecological Information (Section 12)

Section 4: First Aid Measures
If accidental overexposure is suspected
Eye(s) Contact:  Immediately flush eyes with water for at least 15 minutes.  Contact lenses should be removed of the initial flush doesn’t wash them out.  Get medical attention.
Skin Contact:  Remove contaminated clothing immediately.  Wash affected skin thoroughly with soap and water.  Seek medical attention if indicated.  Launder clothing before reuse.
Inhalation:  Remove to fresh air.  If not breathing, give artificial respiration.  Give oxygen if needed.  Get medical attention.
Ingestion:  Never give anything by mouth to an unconscious person.  Do not induce vomiting.  Give plenty of water.  Get medical attention.  Get medical aid immediately.  Contact local poison control center.  Rinse mouth.

Note to physician
Treatment: ND
Medical Conditions generally Aggravated by Exposure: ND

Section 5: Fire Fighting Measures
Flash Point: NA
Flammable Limits: NA
Auto-ignition point: NA
Fire Extinguishing Media: Water, fog or spray, CO2, dry chemical, foam.
Special Fire Fighting Procedures: Evacuate area and apply water from a safe distance. Spray water on the nearby peroxide containers to prevent overheating.
Unusual Fire and Explosion Hazards: Peroxides and decomposition products are flammable and can ignite with explosive force if confined.
Hazardous combustion products: ND
DOT Class: Organic Peroxide

Section 6: Accidental Release Measures
Steps to be Taken in Case Material is Released or Spilled: Avoid skin contact. Flush with water, Sweep or scoop out and remove. Wet with water and remove with non-sparking tools.  Thoroughly rinse empty containers.  Based on Dibutyl phthalate.
Waste Disposal Methods: Dispose of waste according to Federal, State and Local Regulations.

Section 7: Handling and Storage
Store in original containers
Precautions to be Taken in Handling and Storage: Do not store near combustibles.  Wash exposed skin thoroughly after handling.  Do not get in eyes, on skin or clothing.  Do not breathe dust, vapor, mist or gas.  Keep container closed.  Empty container may contain hazardous residues.  Keep away from heat, sparks and open flames.  Use explosion proof equipment.  Keep away from all sources of heat and ignition such as radiators, steam pipes and direct sunlight. 
Storage temperature: Maximum 30°C (86°F)
Storage Pressure:ND
For more safety data, see NFPA Bulletin 43B "Storage of Organic Peroxide Formulations".

Section 8: Exposure Controls / Personal Protection
Engineering Controls
Ventilation required: Sufficient to prevent accumulation of vapors or particulates.

Personal Protection Equipment
Respiratory protection: Type - for reducing contaminant concentration in inhaled air: filter-dust, fume, and mist.
Protective gloves: Neoprene, nitrile rubber, or polyvinyl alcohol gloves.
Skin protection: Chemical-resistant apron or coveralls may be needed.
Eye protection: Eye protection must be worn.
Additional clothing and/or equipment: Safety shower and/or eyewash should be available. Chemical-resistant apron or coveralls may be needed.

Exposure Guidelines
See Composition/Information on Ingredients (Section2)

Section 9 Physical and Chemical Properties
Appearance and Physical State: Thick, white paste.
Odor (threshold): Slight odor.
Specific Gravity (H2O=1): NE
Vapor Pressure (mm Hg): NA
Vapor Density (air=1):  ND
Percent Volatile by volume: NA
Evaporation Rate (butyl acetate=1): ND
Boiling Point: ND
Freezing point / melting point: ND
pH: ND
Solubility in Water: Insoluble.
Molecular Weight: ND

Section 10: Stability and Reactivity
Stability: Unstable.
Conditions to Avoid: Ignition sources, temperature above 40°C (104°F), thermal decompositions, and contamination.
Materials to Avoid (Incompatibility): Strong acids, strong alkalis, strong oxidizers, reducing agents, sulfur accelerators and metal salts.
Hazardous Decomposition Products: Flammable and toxic vapors & PCBs (2, 2', 4, 4' Tetrachlorobiphenyl).
Hazardous Polymerization: Will not occur.

Section 11: Toxicological Information
Results of component toxicity test performed: Dermal (skin): LD₅₀ -›8000 mg/kg (rabbits-50% peroxide in Dibutyl Phthalate). Not a toxic substance by dermal route.  Eye: Draize score unknown "Not an eye irritant" (based on rabbit tests with 50% peroxide in Dibutyl Phthalate).  Inhalation: LC₅₀-ND.  Oral: LD₅₀ -›12,918 mg/kg (rats-50% peroxide in Dibutyl Phthalate). Not a toxic substance by oral route.
Human experience: ND
This product doesnot contain any compounds listed by NTP or IARC or regulated by OSHA as a carcinogen.

Section 12: Ecological Information
Ecological Information: ND
Chemical Fate Information:ND

Section 13 Disposal Considerations
RCRA 40 CFR 261 Classification: Reactive.
Federal, State and local laws governing disposal of materials can differ. Ensure proper disposal compliance with proper authorities before disposal.

Section 14: Transportation Information
US DOT Information: Proper shipping name: Organic peroxide type C, solid, n.o.s. (Benzoyl peroxide mixture)
Hazard Class: 5.2
Packaging group: II
UN Number: UN3104
IATA: Proper shipping name: Organic peroxide type C, solid, n.o.s. (Benzoyl peroxide mixture)
Hazard Class: 5.2
Packing group: II
UN Number: UN3104
Marine Pollutant: Component: Dibutyl phthalate.

Section 15: Regulatory Information
United States Federal Regulations
MSDS complies with OSHA’s Hazard Communication Rule 29, CFR 1910.1200.
SARA:ND
SARA Title III:ND
RCRA: Reactive
TSCA:ND
CERCLA: RQ = 1000 pounds.

State Regulations
California Proposition 65: No

International Regulations
Canada WHMIS: ND
Europe EINECS Numbers: ND

Section 16: Other Information
Label Information:ND
European Risk and Safety Phrases: ND
European symbols needed: ND
Canadian WHMIS Symbols: ND
Hazard Rating: Health: ND; Fire: ND; Reactivity:ND
(0=least, 1=Slight, 2=Moderate, 3=High, 4=Extreme)

Abbreviations used in this document
NE= Not established
NA= Not applicable
NIF= No Information Found
ND= No Data

Disclaimer
Ted Pella, Inc. makes no warranty of any kind regarding the information furnished herein. Users should independently determine the suitability and completeness of information from all sources. While this data is presented in good faith and believed to be accurate, it should be considered only as a supplement to other information gathered by the user. It is the User's responsibility to assure the proper use and disposal of these materials as well as the safety and health of all personnel who may work with or otherwise come in contact with these materials.

MSDS Form 0013F1 V2