UK & Ireland Distributor
?2008 - Polymer Systems Technology Limited TM
Unit 2. Network 4. Cressex Business Park,
Lincoln Road, High Wycombe, Bucks. HP12 3RF
Phone +44 (0) 1494 446610
Fax: +44 (0) 1494 528611
Web: http://www.siliconepolymers.co.uk
Email: sales@silicone-polymers.co.uk
CV2-1161 PART B
MATERIAL SAFETY DATA SHEET
CV2-1161 PART B
NuSil Technology LLC urges each customer or recipient of this MSDS to study it carefully to become aware of and
understand the hazards associated with the product. The reader should consider consulting reference works or
individuals who are experts in ventilation, toxicology, and fire prevention, as necessary or appropriate to the use and
understanding of the data contained in this MSDS.
To promote safe handling, each customer or recipient should: (1) notify its employees, agents, contractors, and
others whom it knows or believes will use this material of the information regarding hazards or safety; (2) furnish
this same information to each of its customers for the product; and (3) request its customers to notify their
employees, customers and other users of the product of this information.
1. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
NuSil Technology LLC EMERGENCY TELEPHONE NUMBERS: (800) 424-9300 CHEMTREC
1050 Cindy Lane (805) 684-8780
Carpinteria, California 93013
USA OUTSIDE OF THE USA (703) 527-3887 CHEMTREC
(805) 684-8780
PRODUCT NAME: CV2-1161 PART B
CHEMICAL NAME: Dibenzoyl peroxide in silicone fluid
CHEMICAL FAMILY: Organic peroxides
FORMULA: Proprietary
MOLECULAR WEIGHT: N/A
SYNONYMS: N/A
CAS # : Mixture
2. HAZARDOUS INGREDIENTS
% MATERIAL CAS # EXPOSURE VALUE CLASSIFICATION
50 Dibenzoyl peroxide 94-36-0 See Section 8 See Section 7
3. HAZARDS IDENTIFICATION
EFFECTS OF SINGLE OVEREXPOSURE:
SWALLOWING:
May cause irritation of the mouth, throat and stomach.
SKIN ABSORPTION:
Skin contact may cause slight irritation and possible sensitization.
INHALATION:
Inhalation may cause mild irritation.
SKIN CONTACT:
A single relatively short exposure causes no known adverse effects. Several repeated prolonged exposures (24 to
48 hours) may irritate.
EYE CONTACT:
Direct contact may cause temporary discomfort with irritation and tearing.
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CV2-1161 PART B
EFFECTS OF REPEATED OVEREXPOSURE:
Prolonged and/or repeated inhalation may cause respiratory tract irritation.
MEDICAL CONDITIONS AGGRAVATED BY OVEREXPOSURE:
Persons with pre-exisiting skin disease may be at an increased risk if exposed dermally to this material.
SIGNIFICANT LABORATORY DATA WITH POSSIBLE RELEVANCE TO HUMAN HEALTH HAZARD
EVALUATION:
None currently known.
OTHER EFFECTS OF OVEREXPOSURE:
Over exposure to this product may affect the skin, eyes and respiratory system.
4. FIRST AID MEASURES
EMERGENCY AND FIRST AID MEASURES:
SWALLOWING:
Immediately give several glasses of water and DO NOT induce vomiting.
SKIN:
Wash with soap and water. Remove contaminated clothing and do not attempt to neutralize with chemical agents.
INHALATION:
Remove to fresh air. If breathing is difficult oxygen may be given. Get medical attention.
EYES:
Immediately flush eyes with water for at least 15 minutes. Obtain medical attention if discomfort persists.
NOTES TO PHYSICIAN:
There is no specific antidote. Treatment of overexposure should be directed at the control of symptoms and the
clinical condition of the patient. NOTE: Do not induce vomiting. Emesis of this material may prove difficult due
to its high viscosity. Aspiration may cause lung damage.
5. FIRE FIGHTING MEASURES
FLASH POINT (test method(s)): > 93?C (Setaflash Closed Cup)
FLAMMABLE LIMITS IN AIR (by volume):
LOWER: N/A UPPER: N/A
EXTINGUISHING MEDIA:
Apply alcohol-type or universal-type foams by manufacturer's recommended technique for large fires. Use water
spray, carbon dioxide, dry chemical media for small fires.
SPECIAL FIRE FIGHTING PROCEDURES:
Do not spray a solid stream of water or foam directly into a pool of hot, burning liquid as this may cause frothing,
and may intensify the fire. Use self-contained breathing apparatus when fighting fire in an enclosed area.
If not leaking, keep fire exposed containers cool with a water fog or spray to prevent ruture due to excessive heat.
UNUSUAL FIRE AND EXPLOSION HAZARDS:
Peroxides and peroxide decomposition products are flammable and can ignite with explosive force if confined. This
product can produce flammable vapors which may travel to a source of ignition and flash back.
This product contains polydimethylsiloxane which can generate formaldehyde as a byproduct of oxidative thermal
decomposition at temperatures greater than 150癈 (300癋). See Section 10 for further information.
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CV2-1161 PART B
6. ACCIDENTAL RELEASE MEASURES
STEPS TO BE TAKEN IF MATERIAL IS RELEASED OR SPILLED:
Remove all sources of ignition and use non-sparking tools if required.
Spills should be contained with absorbant barriers. Transfer spilled material to a suitable container for disposal.
WASTE DISPOSAL METHOD: Dispose of in accordance with all Federal, State, and local regulations.
7. HANDLING AND STORAGE
PRECAUTIONS TO BE TAKEN IN HANDLING AND STORAGE:
Normal precautions common to safe manufacturing practice should be followed in handling and storage.
Electrically grounded tanks and containers should always be used as should non-sparking, electrically grounded
hand tools and appliances.
Keep container closed, in a cool dry place S3/S7/S8
Contact with combustibles or reducers may cause fire R8
Irritating to eyes, respiratory tract and skin R36/R37/R38
To ensure product quality, storage temperatures should not exceed 86癋 (30癈).
Keep containers tightly closed and store away from amines, acids, alkalis, and heavy metal compounds.
Any proposed use of this product in elevated-temperature processes should be thoroughly evaluated to assure that
safe operating conditions are established and maintained.
8. EXPOSURE CONTROLS / PERSONAL PROTECTION
OCCUPATIONAL EXPOSURE VALUES AND SOURCE:
5 mg/m3 - 8 hours TWA (OSHA, NIOSH)
Dibenzoyl peroxide :
5 mg/m3 - 8 hours TLV (ACGIH)
RESPIRATORY PROTECTION:
Use NIOSH approved respirator or self-contained breathing apparatus as needed to maintain personnel exposure
below established Occupational Exposure Values.
VENTILATION: General (mechanical) room ventilation with local ventilation as needed to maintain exposure
below established Occupational Exposure Values.
PROTECTIVE GLOVES: PVC-coated.
EYE PROTECTION: Use safety goggles.
OTHER PROTECTIVE EQUIPMENT: Eye bath and safety shower.
9. PHYSICAL AND CHEMICAL PROPERTIES (based on typical material)
BOILING POINT: N/A
SPECIFIC GRAVITY (H2O=1): 1.25
FREEZING POINT: N/A
VAPOR PRESSURE : N/A
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CV2-1161 PART B
VAPOR DENSITY (air=1): N/A
EVAPORATION RATE (Butyl Acetate=1): N/A
SOLUBILITY IN WATER (By wt): Insoluble.
APPEARANCE: White.
ODOR: Mild.
PHYSICAL STATE: Paste
PERCENT VOLATILES (by wt): See Section 15
Note: The above information is not intended for use in preparing product specifications.
10. STABILITY AND REACTIVITY DATA
STABILITY: Stable.
CONDITIONS TO AVOID: the SADT for this product is => 131 癋 (=> 55癈). the SADT ( Self-accelerating
decomposition temperature) is an experimentally derived temperature at which a typical package of the product will
undergo self-accelerating decomposition. Decomposition can be expected to be hazardous and uncontrollable.
Under on circumstances should this product be exposed to temperatures near aor above the emergency temperature
of 122癋 (50癈). Such an exposure could initiate hazardous decomposition..
INCOMPATIBILITY: Strong acids, strong oxidizers, strong bases, metal salts, reducing agents, and accelerators
can cause a reaction.
HAZARDOUS COMBUSTION OR DECOMPOSITION PRODUCTS:
Burning can produce carbon monoxide, carbon dioxide, oxides of silicon, and hydrocarbons. Carbon monoxide is
highly toxic if inhaled; carbon dioxide in sufficient concentrations can act as an asphyxiant. Acute overexposure to
the products of combustion may result in irritation of the respiratory tract.
Traces of formaldehyde may be generated due to oxidative thermal decomposition at temperatures greater than
150癈 (300癋). Exposure to formaldehyde can cause adverse effects such as skin and respiratory sensitization and
eye and throat irritation. Formaldehyde is a potential carcinogen. Evaluate and control exposure to formaldehyde
when warranted by conditions of use.
May also generate carbon dioxide, carbon monoxide and biphenyl.
HAZARDOUS POLYMERIZATION: Will not occur.
11. TOXICOLOGICAL INFORMATION
COMPONENT:
CV2-1161 PART B:
Acute Oral LD50 (mg/kg): 12918 (Rat) for a 50% solution of Dibenzoyl peroxide in silicone fluid.
Acute Dermal LD50 (mg/kg): >8000 (Rbt) for a 50% solution of Dibenzoyl peroxide in silicone fluid.
Acute Inhalation LC50 (mg/l): Inhalation toxicity is not available for this product.
Other: N/A.
Ames Test: N/A.
Refer to Section 3 for further discussion of the health hazards associated with this preparation.
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CV2-1161 PART B
12. ECOLOGICAL INFORMATION
ECOTOXICOLOGICAL INFORMATION: Complete information not yet available.
CHEMICAL FATE INFORMATION: Complete information not yet available.
13. DISPOSAL CONSIDERATIONS
Dispose of in accordance with all Federal, State, and local regulations.
14. TRANSPORT INFORMATION
DOT HAZARD CLASSIFICATION:
UN. Proper Shipping Name: Organic Peroxide Type D, Solid (Dibenzoyl peroxide solution)
Hazard Class: 5.2
ID Number: UN3106
P.G. II
I.A.T.A. HAZARD CLASSIFICATION:
UN. Proper Shipping Name: Organic Peroxide Type D, Solid (Dibenzoyl peroxide solution)
Hazard Class: 5.2
ID Number: UN3106
P.G. None
15. REGULATORY INFORMATION
STATUS ON SUBSTANCE LISTS:
The concentrations shown are maximum or ceiling levels (weight %) to be used for calculations for regulations.
Trade Secrets are indicated by "TS".
C.H.I.P. REGULATIONS
Chemicals (Hazard Information and Packaging for Supply) Regulations 2002 requires physico-chemical and health
hazard determination of all substances and preparations manufactured, transported, stored, modified, or consumed
within the U.K. Components present in this product at a level, which could require reporting under the statute, are:
UPPER BOUND
MATERIAL CAS NUMBER CONCENTRATION
Dibenzoyl peroxide 94-36-0 50 %
____________________________________________________________________________________________
FEDERAL EPA
Comprehensive Environmental Response Compensation and Liability Act of 1980 (CERCLA) requires notification
of the National Response Center of release of quantities of Hazardous Substances equal to or greater than the
reportable quantities (RQ's) in 40 CFR 302.4. Components present in this product at a level which could require
reporting under the statute are: **** NONE ****
____________________________________________________________________________________________
Superfund Amendments and Reauthorization Act of 1986 (SARA) Title III requires emergency planning based on
Threshold Planning Quantities (TPQ's) and release reporting based on Reportable Quantities (RQ's) in 40 CFR 355
(used for SARA 302, 304, 311, and 312). Components present in this product at a level which could require
reporting under the statute are: **** NONE ****
____________________________________________________________________________________________
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CV2-1161 PART B
Superfund Amendments and Reauthorization Act of 1986 (SARA) Title III requires submission of annual reports of
release of toxic chemicals that appear in 40 CFR 372 (for SARA 313). This information must be included in all
MSDS's that are copied and distributed for this material. Components present in this product at a level which could
require reporting under this statute are: **** NONE ****
____________________________________________________________________________________________
INVENTORY STATUS
The ingredients of this product are listed on, or are exempt from listing on, the TSCA inventory.
____________________________________________________________________________________________
STATE-RIGHT-TO-KNOW
CALIFORNIA Proposition 65
This product contains no levels of listed substances, which the State of California has found to cause cancer, birth
defects or other reproductive harm, which would require a warning under the statute.
____________________________________________________________________________________________
MASSACHUSETTS 105 CMR 670.000 Right-To-Know, Substance List (MSL)
Hazardous Substances and Extraordinarily Hazardous Substances on the MSL must be identified when present in
products. Components present in this product at a level which could require reporting under the statute are:
UPPER BOUND
MATERIAL CAS NUMBER CONCENTRATION
Dibenzoyl peroxide 94-36-0 50 %
____________________________________________________________________________________________
PENNSYLVANIA Right-To-Know, Hazardous Substance List
Hazardous Substances and Special Hazardous Substances on the List must be identified when present in products.
Components present in this product at a level which could require reporting under the statute are:
UPPER BOUND
MATERIAL CAS NUMBER CONCENTRATION
Dibenzoyl peroxide 94-36-0 50 %
____________________________________________________________________________________________
CALIFORNIA SCAQMD RULE 443.1 VOC'S:
Volatile Organic Components (VOC's) = Substances with vapor pressure of 0.5 mm Hg at 104癈 (219.2癋).
This product contains < 1 % by weight VOC's.
____________________________________________________________________________________________
OTHER REGULATORY INFORMATION:
EPA Hazard Categories: Immediate Health Hazard.
C.H.I.P. Regulations:
Designation: CV2-1161 PART B
Symbol: Xi; O
Indication of Danger: Irritant Oxidizing
Safety Phrases: S3/S7/S8
(Ref. Sect. 7) R8/R36/R37/R38
____________________________________________________________________________________________
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CV2-1161 PART B
16. OTHER INFORMATION
HMIS FORMAT:
Health: 2 Flammability: 2 Reactivity: 2
We believe that the information contained herein is current as of the date of this Material Safety Data Sheet, and is
offered in good faith. Since the use of this information and of these opinions and the conditions of the use of the
product are not within the control of NuSil Technology, it is the user's obligation to determine the conditions of safe
use of the product.
-NuSil Technology LLC Regulatory Compliance Department
Effective Date: February 15, 2007
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