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7732-18-5 85-68-7 94-36-0

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                                                                     LUPEROX ANS55
Material Safety Data Sheet
Arkema Inc.
1 PRODUCT AND COMPANY IDENTIFICATION

EMERGENCY PHONE NUMBERS:
Functional Additives
Chemtrec: (800) 424-9300 (24hrs) or (703) 527-3887
2000 Market Street
Medical: Rocky Mountain Poison Control Center
21st Floor
(866) 767-5089 (24Hrs)
Philadelphia, PA 19103-3222
Information Telephone Numbers Phone Number Available Hrs
Customer Service Number (800) 331-7654 8:00 AM - 5:00 PM EST

Product Name LUPEROX ANS55
Product Synonym(s)

Chemical Family Organic Peroxide - Diacyl
Chemical Formula
Chemical Name
EPA Reg Num
Product Use Polymerization Initiator


2 COMPOSITION / INFORMATION ON INGREDIENTS

Ingredient Name CAS RegistryNumber Typical % OSHA
Inert filler Proprietary 3 Y
Water 7732-18-5 14 N
Butyl benzyl phthalate 85-68-7 28 Y
Dibenzoyl peroxide 94-36-0 55 Y
The substance(s) marked with a "Y" in the OSHA column, are identified as hazardous chemicals according to the
criteria of the OSHA Hazard Communication Standard (29 CFR 1910.1200)

This material is classified as hazardous under Federal OSHA regulation.

The components of this product are either on the TSCA Inventory list or exempt as impurities.


3 HAZARDS IDENTIFICATION

Emergency Overview
White paste, slight odor

WARNING!
ORGANIC PEROXIDE
CAUSES EYE IRRITATION.
CAUSES RESPIRATORY TRACT IRRITATION.
MAY CAUSE ALLERGIC SKIN REACTION.



Potential Health Effects

Inhalation and skin contact are expected to be the primary routes of occupational exposure to this material. Based on
its composition, it is anticipated to be irritating to the eyes and respiratory tract. Repeated exposure may cause an
allergic skin reaction.


Product Code: 094000 Page 1
Revision: 8 Issued: 02 JAN 2007 of 8
LUPEROX ANS55
Material Safety Data Sheet
Arkema Inc.

4 FIRST AID MEASURES

IF IN EYES, immediately flush with plenty of water for at least 15 minutes. Get medical attention.

IF ON SKIN, immediately wash with soap and plenty of water. Remove contaminated clothing and shoes.
Get medical attention. Wash clothing before reuse. Destroy contaminated shoes.

IF SWALLOWED, induce vomiting as directed by medical personnel. Get medical attention. NEVER GIVE
ANYTHING BY MOUTH TO AN UNCONSCIOUS PERSON.

IF INHALED, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give
oxygen. Get medical attention.


5 FIRE FIGHTING MEASURES

Fire and Explosive Properties
Auto-Ignition Temperature NE
Flash Point NA Flash Point Method
Flammable Limits- Upper NE
NE
Lower
Extinguishing Media
Use water spray, foam or dry chemical.

Fire Fighting Instructions
Fight fire with large amounts of water from a safe distance. Use water spray to cool containers exposed to fire.
Fire fighters and others who may be exposed to products of combustion should wear full fire fighting turn out
gear (full Bunker Gear) and self-contained breathing apparatus (pressure demand NIOSH approved or
equivalent). Fire fighting equipment should be thoroughly decontaminated after use. After a fire, wait until the
material has cooled to room temperature before initiating clean up activities.

Fire and Explosion Hazards
Contact with incompatible materials or exposure to temperatures exceeding the SADT may result in a self
accelerating decomposition reaction with release of flammable vapors which may autoignite.


6 ACCIDENTAL RELEASE MEASURES

In Case of Spill or Leak
Wet down (dampen) the spilled peroxide with water. Sweep or scoop up using non-sparking tools and place
into a polyethylene bag for disposal. The sweepings should be wetted down further with water. Dispose of
immediately. After all of the material has been collected, wash down the area with detergent and water.
Consult a regulatory specialist to determine appropriate state or local reporting requirements, for assistance
in waste characterization and/or hazardous waste disposal and other requirements listed in pertinent
environmental permits.


7 HANDLING AND STORAGE




Product Code: 094000 Page 2
Revision: 8 Issued: 02 JAN 2007 of 8
LUPEROX ANS55
Material Safety Data Sheet
Arkema Inc.

7 HANDLING AND STORAGE

Handling
Contact with incompatible materials or exposure to temperatures exceeding SADT (See Section (9) may
result in a self accelerating decomposition reaction with release of flammable vapors which may autoignite.
Keep away from heat sparks and flame. Avoid contamination. Use only with adequate ventilation. Use
explosion proof equipment. Keep container closed. Do not reuse container as it may retain hazardous
product residue. Avoid creating dust in handling, transfer or clean-up. Avoid breathing dust. Avoid contact
with eyes. Wash thoroughly after handling. Avoid prolonged or repeated contact with skin.

Storage
Store below 38 C/100 F to maintain stability and active oxygen content. Detached storage is preferred.
Store out of direct sunlight in a cool well-ventilated place. Store away from combustibles and incompatible
materials. Refer also to National Fire Protection Agency (NFPA) Code 432, Code for the Storage of Organic
Peroxide Formulations.


8 EXPOSURE CONTROLS / PERSONAL PROTECTION

Engineering Controls
Investigate engineering techniques to reduce exposures below airborne exposure limits. Provide ventilation
if necessary to control exposure levels below airborne exposure limits (see below). If practical, use local
mechanical exhaust ventilation at sources of air contamination such as open process equipment.

Eye / Face Protection
Where there is potential for eye contact, wear chemical goggles and have eye flushing equipment
immediately available.

Skin Protection
Wear appropriate chemical resistant protective clothing and chemical resistant gloves to prevent skin
contact. Consult glove manufacturer to determine appropriate type glove material for given application.
Wear face shield and chemical resistant clothing such as a rubber apron when splashing may occur. Rinse
contaminated skin promptly. Wash contaminated clothing and clean protective equipment before reuse.
Wash skin thoroughly after handling.

Respiratory Protection
Avoid breathing vapor or mist. Where airborne exposure is likely, use NIOSH approved respiratory
protection equipment appropriate to the material and/or its components. Full facepiece equipment is
recommended and, if used, replaces need for face shield and/or chemical goggles. If exposures cannot be
kept at a minimum with engineering controls, consult respirator manufacturer to determine appropriate type
equipment for given application. Observe respirator use limitations specified by NIOSH or the manufacturer.
For emergency and other conditions where there may be a potential for significant exposure, use an
approved full face positive-pressure, self-contained breathing apparatus or positive-pressure airline with
auxiliary self-contained air supply. Respiratory protection programs must comply with 29 CFR ?1910.134.


Airborne Exposure Guidelines for Ingredients
Exposure Limit Value

Dibenzoyl peroxide
ACGIH TWA - 5 mg/m3
OSHA TWA PEL - 5 mg/m3




Product Code: 094000 Page 3
Revision: 8 Issued: 02 JAN 2007 of 8
LUPEROX ANS55
Material Safety Data Sheet
Arkema Inc.


-Only those components with exposure limits are printed in this section.
-Skin contact limits designated with a "Y" above have skin contact effect. Air sampling alone is insufficient to accurately quantitate
exposure. Measures to prevent significant cutaneous absorption may be required.
-ACGIH Sensitizer designator with a value of "Y" above means that exposure to this material may cause allergic reactions.
-WEEL-AIHA Sensitizer designator with a value of "Y" above means that exposure to this material may cause allergic skin reactions.


9 PHYSICAL AND CHEMICAL PROPERTIES

White paste, slight odor
Appearance/Odor
pH NA
Specific Gravity 1.22 @ 25 C
Vapor Pressure NE
Vapor Density NE
Melting Point 0C
Freezing Point NE
Boiling Point NE
Solubility In Water Insoluble
SADT 54 C (50 lb ctn.)
This material is chemically unstable and should only be handled under specified conditions. See HANDLING AND STORAGE section
of this MSDS for specified conditions.

SADT - Self Accelerating Decomposition Temperature. Lowest temperature at which the tested package size will undergo a self-
accelerating decomposition reaction. This reaction will generate flammable vapors which may autoignite. The length of time to
generated a decomposition reaction, after the SADT has been reached or exceeded, is dependent upon how much the SADT has
been exceeded and the length of time needed for the reaction exotherm (heat spike from increasing decomposition rate) to initiate a
rapid decomposition reaction. Typically, SADT is inversely proportional to package size. Larger packages will have a lower SADT
due to smaller ratio to heat transfer area to volume of product.
Other Physical Data Active Oxygen Content = 3.63-3.83%


10 STABILITY AND REACTIVITY


Stability
This material is chemically unstable and should only be handled under specified conditions. See HANDLING
AND STORAGE section of this MSDS for specified conditions.

SADT - Self Accelerating Decomposition Temperature. Lowest temperature at which the tested package size
will undergo a self-accelerating decomposition reaction. This reaction will generate flammable vapors which
may autoignite. The length of time to generated a decomposition reaction, after the SADT has been reached
or exceeded, is dependent upon how much the SADT has been exceeded and the length of time needed for
the reaction exotherm (heat spike from increasing decomposition rate) to initiate a rapid decomposition
reaction. Typically, SADT is inversely proportional to package size. Larger packages will have a lower SADT
due to smaller ratio to heat transfer area to volume of product.

Hazardous Polymerization
Does not occur.

Incompatibility
Contact with foreign materials, such as, strong acids, alkalis, oxidizers, amines, reducing agents and
promoters/accelerators may result in a violent decomposition reaction or in product degradation.
Hazardous Decomposition Products
Temperatures at or above the SADT can result in the release of hazardous decomposition products which are
flammable and may autoignite.


Product Code: 094000 Page 4
Revision: 8 Issued: 02 JAN 2007 of 8
LUPEROX ANS55
Material Safety Data Sheet
Arkema Inc.

11 TOXICOLOGICAL INFORMATION

Toxicological Information
Data on this material and/or its components are summarized below.

Dibenzoyl peroxide
Single exposure (acute) studies indicate that this material is slightly toxic to practically non-toxic if swallowed (rat
LD50 >950 to >5,000 mg/kg), practically non-toxic if inhaled (rat 4-hr LC50 >22.4 mg/l, nominal concentration;
the highest atmospheric concentration achievable in the study), severely irritating to rabbit eyes and non-
irritating to rabbit skin (4-hr exposure).

Skin allergy was observed in humans and guinea pigs following repeated skin exposure. Long-term dietary
administration to rats showed an increased incidence of testicular atrophy. Long-term skin application or dietary
administration studies in rats and mice produced no evidence of carcinogenicity. However, repeated long-term
skin application along with a known carcinogen has enhanced skin tumor production in mice. The International
Agency for Research on Cancer (IARC) has evaluated this material and determined that it is "unclassifiable as
to its carcinogenicity to humans" (Group 3). No genetic changes were observed in standard tests using animals
or bacteria. Both positive and negative responses occurred in tests with animal cells.

Butyl benzyl phthalate
Single exposure (acute) studies indicate that this material is slightly to practically non-toxic if swallowed (rat
LD50 2,330-20,400 mg/kg), practically non-toxic if absorbed through skin (rabbit LD50 >10,000 mg/kg) or
inhaled (rat 4-hr LC50 >6.7 mg/l), and practically non-irritating to rabbit skin (0.7/8.0) and eyes (1.4/110.0).

No skin allergy was observed in humans following repeated exposure. Repeated oral and inhalation exposure
caused increased mortality, eye irritation, clinical signs of stiff hind limbs (but no pathological changes), reduced
body, spleen and testes weights, increased liver and kidney weights, anemia and pancreatic damage in rats.
No effects other than reduced weight gain were seen in treated mice. No adverse effects were observed
following repeated administration in the feed of dogs. Long-term feeding studies conducted by the National
Toxicology Program (NTP) in mice and rats have produced poor survival (internal hemorrhaging) and pancreatic
tumors in male rats, an increased frequency of benign pancreatic and urinary bladder tumors and mononuclear
cell leukemia in female rats (this type of leukemia has relatively high spontaneous background incidence in the
rat), and no increase in tumors in mice. The International Agency for Research on Cancer (IARC) has
concluded that this material is "not classifiable as to its carcinogenicity to humans." Birth defects were noted in
the offspring of rats and mice exposed during pregnancy, but only at levels that produced adverse effects on the
mother. No increase in birth defects or maternal toxicity was seen in rabbits. Decreased fertility was observed
in rats following repeated administration in the feed. In male rats study revealed this product caused
malformations in the reproductive organs. No genetic changes were observed in tests using bacteria or animal
cells, although changes were seen in animals.

Inert Filler
Single exposure (acute) studies indicate that this material is non-irritating to rabbit eyes and skin.

Inert Filler
Overexposure to vapor or dust causes mild eye and throat irritation. Repeated exposure produced no skin
irritation or allergy in humans. Effects on weight, blood, liver and clinical chemistry were observed in long-term
oral exposure studies in rats and mice. No genetic changes were observed in standard tests using bacteria and
animal cells.


12 ECOLOGICAL INFORMATION

Ecotoxicological Information
Data on this material and/or its components are summarized below.



Product Code: 094000 Page 5
Revision: 8 Issued: 02 JAN 2007 of 8
LUPEROX ANS55
Material Safety Data Sheet
Arkema Inc.

12 ECOLOGICAL INFORMATION

Dibenzoyl peroxide
This material is highly toxic to Daphnia magna (48-hr EC50 0.07 mg/l) and algae (72-hr EC50 0.83 mg/l). It is
moderately toxic to guppies (96-hr LC50 2.0 mg/l) and slightly toxic to activated sludge (30-min EC50 35 mg/l).

Butyl benzyl phthalate
This material is moderately toxic to rainbow trout and fathead minnows (LC50 2.1-3.3 mg/l), and midges and
chrionomus tentans (EC50 1.64 to 7.2 mg/l). It is slightly to moderately toxic to Daphnia magna (LC50 3.7-55
mg/l), and highly toxic to algae (96-hr EC50 0.52 mg/l), shiner perch (96-hr LC50 0.51 mg/l) and English sole
(96-hr LC50 0.55-0.66 mg/l). It is practically non-toxic to sheepshead minnow (96-hr LC50 440 ppm). The 21-
day MATC for Daphnia magna is 0.22-0.35 mg/l and the 30-day NOEC for fathead minnow is 0.14-0.36 mg/l.

Inert Filler
This material is practically non-toxic to Daphnia magna (48-hr EC50 100 to >1,000 mg/l) and trout (96-hr LC50
100 to >1,000 mg/l).

Chemical Fate Information
Data on this material and/or its components are summarized below.

Dibenzoyl peroxide
This material is biodegradable under aerobic conditions (60% after 28-days) and has a low potential to
bioaccumulate (log Pow 1.87). It is degraded in air by OH radicals (half-life 54-hrs).

Butyl benzyl phthalate
This material is readily biodegradable (88-93% after 28-days). It has a log Pow of 3.57-4.91 and a 21-day BCF
of 663 (bluegill).

Inert Filler
Biooxidation values when evaluated in BOD/COD assay: <0.50.



13 DISPOSAL CONSIDERATIONS

Waste Disposal
Incineration is the recommended method for disposal observing all local, state and federal regulations.


14 TRANSPORT INFORMATION

DOT Name Organic Peroxide, Type D, Solid
DOT Technical Name [Dibenzoyl Peroxide (as a paste), > 52-62%]
DOT Hazard Class 5.2
UN Number UN 3106
DOT Packing Group PG ll
RQ



15 REGULATORY INFORMATION




Product Code: 094000 Page 6
Revision: 8 Issued: 02 JAN 2007 of 8
LUPEROX ANS55
Material Safety Data Sheet
Arkema Inc.

Hazard Categories Under Criteria of SARA Title III Rules (40 CFR Part 370)
Immediate (Acute) Health Y Fire Y
Delayed (Chronic) Health N Reactive Y
Sudden Release of Pressure N
The components of this product are either on the TSCA Inventory list or exempt as impurities.


Ingredient Related Regulatory Information:
CERCLA RQ SARA TPQ
SARA Reportable Quantities
Water NE
Butyl benzyl phthalate 100 LBS
Inert filler NE
Dibenzoyl peroxide NE

SARA Title III, Section 313
This product does contain chemical(s) which are defined as toxic chemicals under and subject to the reporting requirements of, Section
313 of Title III of the Superfund Amendments and Reauthorization Act of 1986 and 40 CFR Part 372. See Section 2
Dibenzoyl peroxide

California Prop 65 - Developmental Toxin
This product does contain the following chemical(s), as indicated below, currently on the California List of Developmental Toxins.
Butyl benzyl phthalate
Massachusetts Right to Know
This product does contain the following chemicals(s), as indicated below, currently on the Massachusetts Right to Know Substance
List.
Butyl benzyl phthalate
Dibenzoyl peroxide
New Jersey Right to Know
This product does contain the following chemical(s), as indicated below, currently on the New Jersey Right-to-Know Substances List.
Butyl benzyl phthalate
Dibenzoyl peroxide
Pennsylvania Environmental Hazard
This product does contain the following chemical(s), as indicated below, currently on the Pennsylvania Environmental Hazard List.
Butyl benzyl phthalate
Dibenzoyl peroxide
Pennsylvania Right to Know
This product does contain the following chemical(s), as indicated below, currently on the Pennsylvania Hazardous Substance List.
Butyl benzyl phthalate
Dibenzoyl peroxide

16 OTHER INFORMATION


Revision Information

Revision Number 8
02 JAN 2007
Revision Date
Supercedes Revision Dated 02-JAN-2007
Revision Summary
This product has been moved to the Functional Additives business unit.




Product Code: 094000 Page 7
Revision: 8 Issued: 02 JAN 2007 of 8
LUPEROX ANS55
Material Safety Data Sheet
Arkema Inc.
Key
NE= Not Established NA= Not Applicable (R) = Registered Trademark



Miscellaneous
LUPEROX is a registered trademark of Arkema Inc.


Arkema Inc. believes that the information and recommendations contained herein (including data and
statements) are accurate as of the date hereof. NO WARRANTY OF FITNESS FOR ANY PARTICULAR
PURPOSE, WARRANTY OF MERCHANTABILITY, OR ANY OTHER WARRANTY, EXPRESSED OR
IMPLIED, IS MADE CONCERNING THE INFORMATION PROVIDED HEREIN. The information provided
herein relates only to the specific product designated and may not be valid where such product is used in
combination with any other materials or in any process. Further, since the conditions and methods of use are
beyond the control of Arkema Inc., Arkema Inc. expressly disclaims any and all liability as to any results
obtained or arising from any use of the product or reliance on such information.




Product Code: 094000 Page 8
Revision: 8 Issued: 02 JAN 2007 of 8

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