CHEMTREC Transportation
Emergency Phone: 800-
Material 424-9300
Pittsburgh Poison Control
Safety Data Center
Health Emergency No.: 412-
681-6669
Sheet NOTE: The CHEMTREC Transportation
Emergency Phone is to be used only in the
event of chemical emergencies involving a
spill, leak, fire, exposure or accident
involving chemicals
Section 1 - Chemical Product / Company Information
SEMSTONE 800 SERIES PRIMER Revision
06/29/2009
Product Name:
PART A Date:
Identification
PLMSDS 198PA1NL Supercedes : 04/17/2006
Number:
Product
FOR INDUSTRIAL USE ONLY
Use/Class:
Regulatory, Department
Preparer:
Manufacturer: Carboline Company
2150 Schuetz Road
St. Louis, MO 63146
Section 2 - Composition / Information On Ingredients
Chemical Name CAS Number Weight % Less Than ACGIH TLV-TWA ACGIH TLV-STEL OSHA PEL-TWA OSHA-CEIL
DIBENZOYL 94-36-0 45.0 5 MG/M3 N/E 5 MG/M3 N/E
PEROXIDE
Section 3 - Hazards Identification
Emergency Overview: White homogenous dispersion with slight odor. DANGER! Organic Peroxide.
Heat or contamination may cause hazardous decomposition. May cause eye, skin and respiratory tract
irritation. May cause allergic skin reaction.
Effects Of Overexposure - Eye Contact: May cause eye irritation.
Effects Of Overexposure - Skin Contact: May cause skin irritation. May cause allergic skin reaction.
Effects Of Overexposure - Inhalation: Can cause irritation to mucous membrane and upper respiratory
system. Inhalation of high concentrations may cause headache, nausea, and dizziness.
Effects Of Overexposure - Ingestion: May be harmful if swallowed.
Effects Of Overexposure - Chronic Hazards: No Information.
Primary Route(s) Of Entry: Skin Contact, Skin Absorption, Inhalation, Ingestion, Eye Contact
Medical Conditions Prone to Aggravation by Exposure: Skin contact may aggravate an existing
dermatitus (skin condition). Overexposure to vapor, dust or mist may aggravate existing respiratory
conditions, such as asthma, bronchitis, and inflammatory or fibrotic respiratory disease.
Section 4 - First Aid Measures
First Aid - Eye Contact: If material gets into eyes, flush with water immediately for 15 minutes. Consult
a physician.
First Aid - Skin Contact: In case of contact, wash skin immediately with soap and water.
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First Aid - Inhalation: If inhaled, remove to fresh air. Administer oxygen if necessary. Consult a
physician if symptoms persist or exposure was severe.
First Aid - Ingestion: If swallowed do not induce vomiting. Seek immediate medical attention.
Section 5 - Fire Fighting Measures
Flash Point, F: 200F (93C) Lower Explosive Limit, %: N/A
Upper Explosive Limit, %: N/A
(Setaflash)
Extinguishing Media: Carbon Dioxide, Dry Chemical, Foam, Water Fog
Unusual 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.
All organic peroxides should be considered highly combustible. Once ignited, most organic peroxides
burn vigoriously. The flashpoint of an organic peroxide is only meaningful when it is below the
temperature at which the organic peroxide begins to decompose due to its thermal instability. Normally,
no decomposition occurs until the temperature is well above ambient. See storage conditions. This
product contains less than 1% volatile components. The amount of vapors that could accumulate are
minimal. However, vapors are heavier than air and could travel long distances, ignite, and flashback.
Eliminate all ignition sources. Keep away from sparks, open flames, and heat sources. All electrical
equipment and installations should be made and grounded in accordance with the National Electrical
Code. In areas where explosion hazards exist, workers should be required to use nonferrous tools and to
wear conductive and non-sparking shoes.
Special Firefighting Procedures: 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 Bunker Gear and Self-Contained Breathing Apperatus. 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. Evacuate hazard area of unprotected personnel.
Use a NIOSH approved self-contained breathing unit and complete body protection. Cool surrounding
containers with water in case of fire exposure.
Section 6 - Accidental Release Measures
Steps To Be Taken If Material Is Released Or Spilled: Eliminate all ignition sources. Handling
equipment must be grounded to prevent sparking. Evacuate the area of unprotected personnel. Wear
appropriate personal protection clothing and equipment. Follow exposure controls/personal protection
guidelines in Section 8. Contain and soak up residual with an aborbent (clay or sand). Take up absorbant
material and seal tightly for proper disposal. Dispose of in accordance with local, state and federal
regulations. Refer to Section 15 for SARA Title III and CERCLA information.
Section 7 - Handling And Storage
Handling: Contact with incompatible materials or exposure to temperatures exceeding the SADT (See
section 10) 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 explosion proof
equipment. Use only with adequate ventilation. Do not reuse container as it may retain hazardous product
residue. Do not get in eyes, on skin or on clothing. Avoid breathing vapor or mist. Keep container closed
when not in use. Wash thoroughly after handling. Do not taste or swallow.
Storage: Keep away from heat, sparks, open flames and oxidizing agents. Keep containers closed. Store
in a cool, dry place with adequate ventilation. To insure product quality, storage temperatures should not
exceed MAXIMUM STORAGE TEMPERATURE of 77F (25C). To prevent possible self-accelerating
decomposition, temperatures in the storage facility MUST NOT exceed 113F (45C). Product should be
stored above 40F (4C) to prevent freezing. Keep containers tightly closed. Store away from amines,
acids, alkalis, and heavy metal compounds.
Section 8 - Exposure Controls / Personal Protection
Engineering Controls: Use explosion-proof ventilation when required to keep below health exposure
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guidelines and Lower Explosion Limit (LEL).
Respiratory Protection: Use only with ventilation to keep levels below exposure guidelines listed in
Section 2. User should test and monitor exposure levels to ensure all personnel are below guidelines. If
not sure, or not able to monitor, use MSHA/NIOSH approved supplied air respirator. Follow all current
OSHA requirements for respirator use. For silica containing coatings in a liquid state, and/or if no
exposure limits are established in Section 2 above, supplied air respirators are generally not required.
Skin Protection: Recommend impervious gloves and clothing to avoid skin contact. If material penetrates
to skin, change gloves and clothing. The use of protective creams may be beneficial to certain individuals.
Protective creams should be applied before exposure.
Eye Protection: Recommend safety glasses with side shields or chemical goggles to avoid eye contact.
Other protective equipment: Eye wash and safety showers should be readily available.
Hygienic Practices: Wash with soap and water before eating, drinking, smoking, applying cosmetics, or
using toilet facilities. Use of a hand cleaner is recommended. Launder contaminated clothing before
reuse. Leather shoes can absorb and allow hazardous materials to pass through. Check shoes carefully
after soaking before reuse.
Section 9 - Physical And Chemical Properties
212 F (100 C) - 212F (100C) Heavier than Air
Boiling Range: Vapor Density:
Slight N/D
Odor: Odor Threshold:
White Liquid Slower Than Ether
Appearance: Evaporation Rate:
N/D
Solubility in H2O:
N/D 1.04
Freeze Point: Specific Gravity:
N/D N/D
Vapor Pressure: PH:
Liquid
Physical State:
(See section 16 for abbreviation legend)
Section 10 - Stability And Reactivity
Conditions To Avoid: Heat, sparks and open flames.
Incompatibility: Contact with foreign materials, such as strong acids, alkalis, oxiders, reducing agents,
amines, vermiculte, zinc, aluminum iron, rust, copper, transtion metal salt ions, and reaction acceleraters
may result in a rapid and violent reaction.
Hazardous Decomposition Products: Temperatures at or above the SADT can result in the release of
hazardous decomposition products which are flammable and may autoignite.
Hazardous Polymerization: Will not occur under normal conditions.
Stability: This product is stable under normal storage conditions. This product is stable at temperatures
up to 113F (45C).
The SADT for this product is 122F (50C). The SADT (Self Accelerating Decomposition Temperature) is an
experimentally derived temperature at which a typical package size will undergo a self-accelerating
decomposition reaction. This reaction will generate flammable vapors which may autoignite. The length of
time to generate 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.
Section 11 - Toxicological Information
Product LD50: N/D Product LC50: N/D
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Chemical Name CAS Number LD50 LC50
DIBENZOYL PEROXIDE 94-36-0
Section 12 - Ecological Information
Ecological Information: No data
Section 13 - Disposal Information
Disposal Information: Dispose of in accordance with State, Local, and Federal Environmental
regulations. Responsibility for proper waste disposal is with the owner of the waste.
Section 14 - Transportation Information
Organic Peroxide Type E Packing Group: II
DOT Proper Shipping
Liquid
Name:
(Contains Dibenzoyl N/A
DOT Technical Name: Hazard
Peroxide >36 - 42%) Subclass:
5.2 145
DOT Hazard Class: Resp. Guide
Page:
UN 3107
DOT UN/NA Number:
Additional Notes: None.
Section 15 - Regulatory Information
CERCLA - SARA HAZARD CATEGORY
This product has been reviewed according to the EPA Hazard Categories promulgated under Sections
311and 312 of the Superfund Amendment and Reauthorization Act of 1986 (SARA Title III) and is
considered, under applicable definitions, to meet the following categories:
SARA SECTION 313
This product contains the following substances subject to the reporting requirements of Section 313 of
Title III of the Superfund Amendment and Reauthorization Act of 1986 and 40 CFR part 372:
Chemical Name CAS Number
DIBENZOYL PEROXIDE 94-36-0
TOXIC SUBSTANCES CONTROL ACT
All components of this product are listed on the TSCA inventory.
This product contains the following chemical substances subject to the reporting requirements of TSCA
12(B) if exported from the United States:
No TSCA 12(B) Substances exist in this product
U.S. STATE REGULATIONS AS FOLLOWS:
NEW JERSEY RIGHT-TO-KNOW
The following materials are non-hazardous, but are among the top five components in this product.
Chemical Name CAS Number
WATER 7732-18-5
ALIPHATIC HYDROCARBON 64771-72-8
PROPRIETARY ESTER PLASTICIZER 84-69-5
HYDROPHOBIC SILICA 68909-20-6
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PENNSYLVANIA RIGHT-TO-KNOW
The following non-hazardous ingredients are present in the product at greater than 3%.
Chemical Name CAS Number
WATER 7732-18-5
ALIPHATIC HYDROCARBON 64771-72-8
PROPRIETARY ESTER PLASTICIZER 84-69-5
HYDROPHOBIC SILICA 68909-20-6
PROPRIETARY NONIONIC SURFACTAN 18275200000-5015
CALIFORNIA PROPOSITION 65
Warning: The following ingredients present in the product are known to the state of California to
cause Cancer:
No California Proposition 65 Carcinogens exist
Warning: The following ingredients present in the product are known to the state of California to
cause birth defects, or other reproductive hazards:
No California Proposition 65 Reproductive Toxins exist
INTERNATIONAL REGULATIONS AS FOLLOWS:
CANADIAN WHMIS
This MSDS has been prepared in compliance with Controlled Product Regulations except for the use of
the 16 headings.
CANADIAN WHMIS CLASS: C D2B F
Section 16 - Other Information
HMIS Ratings
Health: 2 Flammability: 2 Reactivity: 2 Personal Protection: X
VOLATILE ORGANIC COMPOUNDS, GR/LTR MIXED (UNTHINNED): 0
REASON FOR REVISION: Changes made in Section(s) 1 and 8.
Legend: N.A. - Not Applicable, N.E. - Not Established, N.D. - Not Determined
The information contained herein is, to the best of our knowledge and belief accurate. However, since the
conditions of handling and use are beyond our control, we make no guarantee of results, and assume no
liability for damages incurred by use of this material. It is the responsibility of the user to comply with all
applicable federal, state, and local laws and regulations
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